Radiation astronomy/Courses/Principles/Syllabus/Fall

This is an infrared composite of Uranus obtained with Keck Observatory adaptive optics. Credit: Lawrence Sromovsky, University of Wisconsin-Madison/ W. M. Keck Observatory.{{fairuse}}

For those wishing to take a formally structured undergraduate university semester-length course, this is the Fall offering for principles of radiation astronomy.

General course details may be found at the Syllabus.

August 22, 2022, Monday

The 15" refractor at Comanche Springs Astronomy Campus had its finder scope (a Stellarvue 80/9D achromat) equipped with a Baader Herschel Solar Wedge and a Solar Continuum Filter for today's transit of Venus. Credit: Jeff Barton from Richardson, TX, USA.{{free media}}

• Lecture: Radiation astronomy.

August 23, 2022, Tuesday

Arcs rise above an active region on the surface of the Sun in this series of images taken by the STEREO (Behind) spacecraft. Credit: Images courtesy of the NASA STEREO Science Center.{{free media}}

• Laboratory: Cosmogony laboratory, report is due on August 30, 2022.

• Quiz: Radiation astronomy quiz.

• Quiz section lecture: Meteor astronomy.

August 24, 2022, Wednesday

Cluster is of the Pneumatic Machine (Antlia, originally Antlia Pneumatica). Credit: Atlas of the Universe.{{free media}}

• Lecture: Galaxy cluster astronomy.

August 25, 2022, Thursday

The image shows an example of jellyfish lightning or sprites. Credit: H. H. C. Stenbaek-Nielsen.{{fairuse}}

• Lesson: First blue source in Boötes, report due on September 1, 2022.

• Problem set: Energy phantoms, solutions including work steps due on September 1, 2022.

• Quiz: Meteor astronomy quiz.

• Quiz: Galaxy cluster astronomy quiz.

August 26, 2022, Friday

The irregular galaxy NGC 1427A is passing through the Fornax cluster at nearly 600 kilometers per second (400 miles per second). Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA).{{free media}}

• Lecture: High-velocity galaxy astronomy.

August 29, 2022, Monday

Messier 106 is one of the brightest and nearest spiral galaxies to our own. Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and R. Gendler (for the Hubble Heritage Team).{{free media}}

• Lecture: Galaxy astronomy.

August 30, 2022, Tuesday

This composite image shows a vast cloud of hot gas (X-ray/red) of NGC 507. Credit: NASA/CXC/Stanford U./S.Allen et al.{{free media}}

• Laboratory: Cratering, report is due on September 6, 2022.

• Quiz: High-velocity galaxy radiation astronomy quiz.

• Quiz: Galaxy radiation astronomy quiz.

• Quiz section lecture: Active galactic nuclei astronomy.

August 31, 2022, Wednesday

This image shows an example of a bipolar planetary nebula known as PN Hb 12 in Cassiopeia. Credit: NASA, ESA, and A. Zijlstra (The University of Manchester).{{free media}}

• Lecture: Nebula astronomy.

September 1, 2022, Thursday

This is a wide-field image in the region of NGC 3603 taken on the ground by the Digitized Sky Survey 2. Credit: NASA, ESA, and the Digitized Sky Survey 2.{{free media}}

• Lesson: First cyan source in Caelum, report due on September 8, 2022.

• Problem set: Furlongs per fortnight, solutions including work steps due on September 8, 2022.

• Quiz: Active galactic nuclei quiz.

• Quiz: Nebula quiz.

September 2, 2022, Friday

This is a Hubble Space Telescope Image of NGC 4414. Credit: Hubble Heritage Team (AURA/STScI/NASA).{{free media}}

• Lecture: Standard candle astronomy.

September 5, 2022, Monday

Hubble Space Telescope image shows nebula M1-67 around Wolf–Rayet star WR 124. Credit: Judy Schmidt.{{free media}}

• Lecture: Hypervelocity stellar astronomy.

September 6, 2022, Tuesday

The diffuse X-ray emission from the central star inside NGC 6826 seen with the Chandra X-ray Observatory caused by shock waves as a wind from the hot remnant of the star collides with the ejected atmosphere. Credit: J. Kastner, et al.{{fairuse}}

• Laboratory: Analytical astronomy, report is due on September 13, 2022.

• Quiz: Standard candles quiz.

• Quiz: Hypervelocity stars quiz.

• Quiz section lecture: Stellar astronomy.

September 7, 2022, Wednesday

This is a TRACE image of the coronal arcade structure in the flare on Bastille Day, 1998. Credit: NASA.{{free media}}

• Lecture: Plasma-meteor astronomy.

September 8, 2022, Thursday

This image of coronal loops observed by the Transition Region And Coronal Explorer (TRACE) shows that not all rays travel in straight lines. Credit: NASA.{{free media}}

• Lesson: First gamma-ray source in Triangulum Australe, report due on September 15, 2022.

• Problem set: Radiation astromathematics problems, solutions including work due on September 15, 2022.

• Quiz: Stellar astronomy quiz.

• Quiz: Plasma-meteors quiz.

September 9, 2022, Friday

Colour distribution of centaurs is shown. Credit: Eurocommuter~commonswiki.{{free media}}

• Lecture: Scattered disk astronomy.

September 12, 2022, Monday

This composite image shows an exoplanet (the red spot on the lower left), orbiting the brown dwarf 2M1207 (centre). Credit: ESO.{{free media}}

• Lecture: Planetary astronomy.

September 13, 2022, Tuesday

Diagram shows the local clouds of matter that the Solar System is moving through, with arrows indicating cloud motion. Credit: NASA/Goddard/Adler/U. Chicago/Wesleyan.{{free media}}

• Laboratory: Electric orbits, report is due on September 20, 2022.

• Quiz: Scattered disk astronomy quiz.

• Quiz: Planetary astronomy quiz.

• Quiz section lecture: Oort cloud astronomy.

September 14, 2022, Wednesday

An emission nebula is shown. Credit: NASA, ESA and Jesœs Maz Apellÿniz (Instituto de astrofsica de Andaluca, Spain). Acknowledgement: Davide De Martin (ESA/Hubble).{{free media}}

• Lecture: Cloud astronomy.

September 15, 2022, Thursday

Imaged is the cloud structure in the Venusian atmosphere in 1979, revealed by ultraviolet observations by Pioneer Venus Orbiter. Credit: NASA.{{free media}}

• Lesson: First green source in Tucana, report due on September 22, 2022.

• Problem set: Problem set for radiation astronomy, solutions including work steps due on September 22, 2022.

• Quiz: Oort cloud astronomy quiz.

• Quiz: Cloud astronomy quiz.

September 16, 2022, Friday

Polar view is of 2014 MU69. Credit: Johns Hopkins University Applied Physics Laboratory.{{free media}}

• Lecture: Kuiper belt astronomy.

September 19, 2022, Monday

Asteroid Bennu imaged by the OSIRIS-REx probe on arrival 3 December 2018. Credit: NASA/Goddard/University of Arizona.{{free media}}

• Lecture: Asteroid astronomy.

September 20, 2022, Tuesday

Comet Borrelly is imaged by Deep Space 1 revealing no surface ice. Credit: NASA/JPL.{{free media}}

• Laboratory: Electron beam heating, report is due on September 27, 2022.

• Quiz: Kuiper belt astronomy quiz.

• Quiz: Asteroid astronomy quiz.

• Quiz section lecture: Cometary astronomy.

September 21, 2022, Wednesday

Satellite image shows an unusual high-pressure area south of Australia. Credit: NASA, MODIS Rapid Response System.{{free media}}

• Lecture: Aerometeor astronomy.

September 22, 2022, Thursday

Coal devil occurs in Mongolia. Credit: Texasbob.{{free media}}

• Lesson: First infrared source in Crux, report due on September 29, 2022.

• Problem set: Vectors and coordinates, solutions including work steps due on September 29, 2022.

• Quiz: Cometary astronomy quiz.

• Quiz: Aerometeor astronomy quiz.

September 23, 2022, Friday

Planetary geologist and NASA astronaut Harrison "Jack" Schmitt collects lunar samples during the Apollo 17 mission. Credit: NASA.{{free media}}

• Lecture: Rock astronomy.

September 26, 2022, Monday

Iron(III) oxides and oxyhydroxides, such as these cliffs of ochre, are common catalysts in photogeochemical reactions. Credit: Mirandacherry.{{free media}}

• Lecture: Mineral astronomy.

September 27, 2022, Tuesday

World map showing frequency of lightning strikes, in flashes per km² per year (equal-area projection), from combined 1995–2003 data from the Optical Transient Detector and 1998–2003 data from the Lightning Imaging Sensor. Credit: Citynoise.{{free media}}

• Laboratory: Galaxies, report is due on October 4, 2022.

• Quiz: Rock astronomy quiz.

• Quiz: Minerals astronomy quiz.

• Hourly: Principles of radiation astronomy hourly 1 quiz for lectures 1-16. Questions may include quiz section lectures, lessons, problem sets, and laboratories up to today but not today's laboratory or quiz section lecture.

• Quiz section lecture: Lightning astronomy.

September 28, 2022, Wednesday

Radiant point is from August 8, 2006. Credit: Olga Berrios.{{free media}}

• Lecture: Meteoroid astronomy.

September 29, 2022, Thursday

Meteosat 8/EUMETSAT infrared image is of the explosion. Credit: EUMETSAT.{{fairuse}}

• Lesson: First neutron source in Volans, report due on October 6, 2022.

• Problem set: Unknown coordinate systems, solutions including work steps due on October 6, 2022.

• Quiz: Lightning astronomy quiz.

• Quiz: Meteoroid astronomy quiz.

September 30, 2022, Friday

The Andromedids of 27 November 1872 is a product of the breakup of Biela's Comet several decades previously. Credit: Amedee Guillemin.{{free media}}

• Lecture: Meteor-shower astronomy.

October 3, 2022, Monday

Inpe said it had detected more than 74,000 fires between January and August - the highest number since records began in 2013. Credit: Reporter, Reuters.{{fairuse}}

• Lecture: Fiery meteor astronomy.

October 4, 2022, Tuesday

Boulder of diamictite of the Precambrian Mineral Fork Formation is lithified glacial till, along the Elephant Head Trail, Antelope Island, Utah. Credit: Jstuby.{{free media}}

• Laboratory: Intergalactic medium, report is due on October 11, 2022.

• Quiz: Meteor-shower astronomy quiz.

• Quiz: Fiery-meteor astronomy quiz.

• Quiz section lecture: Particle astronomy.

October 5, 2022, Wednesday

This image of Centaurus A shows a spectacular new view of a supermassive black hole's power. Credit: ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray).{{free media}}

• Lecture: Lithometeor astronomy.

October 6, 2022, Thursday

Wisps of green are organic molecules called Polycyclic Aromatic Hydrocarbons (PAHs) that have been illuminated by the nearby star formation. Credit: NASA/JPL-Caltech/L. Cieza (Univ. of Texas at Austin)).{{free media}}

• Lesson: First orange source in Cancer, report due on October 13, 2022.

• Problem set: Unusual units, solutions including work steps due on October 13, 2022.

• Quiz: Particle astronomy quiz.

• Quiz: Lithometeor astronomy quiz.

October 7, 2022, Friday

This image is a satellite photo of lake-effect snow bands near the Korean Peninsula. Credit: NASA.{{free media}}

• Lecture: Cryometeor astronomy.

October 10, 2022, Monday

Eddies in the Weddell Sea are near Antarctica. Credit: NASA.{{free media}}

• Lecture: Hydrometeor astronomy.

October 11, 2022, Tuesday

This is a graph of the global mean atmospheric water vapor superimposed on an outline of the Earth. Credit: NASA.{{free media}}

• Laboratory: Locating the Sun, report is due on October 18, 2022.

• Quiz: Cryometeor astronomy quiz.

• Quiz: Hydrometeor astronomy quiz.

• Quiz section lecture: Molecule astronomy.

October 12, 2022, Wednesday

This computer-generated diagram of internal rotation in the Sun shows differential rotation in the outer convective region and almost uniform rotation in the central radiative region. Credit: Global Oscillation Network Group (GONG).{{free media}}

• Lecture: Acoustic astronomy.

October 13, 2022, Thursday

Positron astronomy results have been obtained using the INTEGRAL spectrometer SPI shown. Credit: Medialab, ESA.{{fairuse}}

• Lesson: First positron source in Phoenix, report due on October 20, 2022.

• Problem set: Telescopes and cameras, solutions including work steps due on October 20, 2022.

• Quiz: Molecule astronomy quiz.

• Quiz: Acoustic astronomy quiz.

October 14, 2022, Friday

This Chandra X-ray Observatory image is the first X-ray image ever made of Venus. Credit: NASA/MPE/K.Dennerl et al.{{free media}}

• Lecture: Atomic astronomy.

October 17, 2022, Monday

This image is an all-sky map of neutral atoms streaming in from the interstellar boundary. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.{{free media}}

• Lecture: Neutrals astronomy.

October 18, 2022, Tuesday

A mechanism is suggested for anomalous cosmic rays (ACRs) of the acceleration of pick-up ions at the solar wind termination shock. Credit: Eric R. Christian.{{fairuse}}

• Laboratory: Meteorites, report is due on October 25, 2022.

• Quiz: Atomic astronomy quiz.

• Midterm examination: Principles of radiation astronomy midterm quiz.

This quiz is for lectures up through and including optical astronomy (1-24), the prior weeks laboratories, quiz section lectures from the course beginning through and including interplanetary medium, lessons and problem sets through and including those due previously to today.

• Quiz: Neutrals astronomy quiz.

• Quiz section lecture: Subatomics astronomy.

October 19, 2022, Wednesday

The Moon's cosmic ray shadow. Credit: J. H. Cobb et al. (The Soudan 2 Collaboration).{{fairuse}}

• Lecture: Cosmic-ray astronomy.

October 20, 2022, Thursday

Platinum isotope abundances allowed a correction to the silver isotope measurements for distortions caused by cosmic irradiation. Credit: NASA.{{fairuse}}

• Lesson: First radio source in Pisces, report due on October 27, 2022.

• Problem set: Angular momentum and energy, solutions including work steps due on October 28, 2021.

• Quiz: Subatomic astronomy quiz.

• Quiz: Cosmic rays astronomy quiz.

October 21, 2022, Friday

The trace of a single alpha particle was obtained in a spark chamber specially made for alpha particles. Credit: Wolfhart Willimczik.{{free media}}

• Lecture: Alpha-particle astronomy.

October 24, 2022, Monday

The eight toroid magnets can be seen surrounding the calorimeter that is later moved into the middle of the detector. Credit: Maximilien Brice.{{free media}}

• Lecture: Hadron astronomy.

October 25, 2022, Tuesday

AMS-02 is a RICH detector for analyzing cosmic rays. Credit: NASA.{{free media}}

• Laboratory: Neutrinos from the Sun, report is due on November 1, 2022.

• Quiz: Alpha-particle astronomy quiz.

• Quiz: Hadron astronomy quiz.

• Quiz section lecture: Baryon astronomy.

October 26, 2022, Wednesday

The gadolinium in gadolinite is a natural neutron absorber. Credit: WesternDevil.{{free media}}

• Lecture: Neutron radiation astronomy.

October 27, 2022, Thursday

This image contains polar maps of thermal and epithermal neutrons as detected by the Mars Odyssey spacecraft in orbit around Mars. The images are from July 22, 2009. Credit: NASA/JPL-Caltech.{{free media}}

• Lesson: First red source in Canis Major, report due on November 6, 2022.

• Problem set: Cosmic circuits, solutions including work steps due on November 3, 2022.

• Quiz: Baryon astronomy quiz.

• Quiz: Neutron astronomy quiz.

October 28, 2022, Friday

This graph displays the flux of high energy protons measured by GOES 11 over four days from November 2, 2003, to November 5, 2003. Credit: NOAA.{{free media}}

• Lecture: Proton astronomy.

October 31, 2022, Monday

The grand-canonical phase diagram of hadronic matter is a function of temperature and of the isospin and baryonic chemical potentials. Credit: Massimo Mannarelli.{{fairuse}}

• Lecture: Meson astronomy.

November 1, 2022, Tuesday

The second of three ANITA missions as part of NASA’s Antarctica Long Duration Balloon Flight Campaign was successfully launched at 8:10 a.m. EDT, Dec. 2, 2016. Credit: NASA Goddard Space Flight Center from Greenbelt, MD, USA.{{free media}}

• Laboratory: Spectrum of Vega, report is due on November 8, 2022.

• Quiz: Proton astronomy quiz.

• Quiz: Meson astronomy quiz.

• Quiz section lecture: Tauon astronomy.

November 2, 2022, Wednesday

Equatorial skymap of neutrino-induced muon events from 295 days of ANTARES data in 2007/2008. Credit: Christian Spiering.{{fairuse}}

• Lecture: Muon astronomy.

November 3, 2022, Thursday

A region of the sky called the "Lockman Hole", located in the constellation of Ursa Major, is one of the areas surveyed in infrared light by the Herschel Space Observatory. Credit: ESA/Herschel/SPIRE/HerMES.{{free media}}

• Lesson: First submillimeter source in Carina, report due on November 10, 2022.

• Problem set: Column densities, solutions including work steps due on November 10, 2022.

• Quiz: Tauon astronomy quiz.

• Quiz: Muon astronomy quiz.

• Hourly: Principles of radiation astronomy hourly 2 for Lectures 17-32. Questions may include quiz section lectures, laboratories, lessons and problem sets up to but not including today.

November 4, 2022, Friday

In this photograph is recorded the first use of a hydrogen bubble chamber to detect neutrinos, on November 13, 1970. A neutrino hit a proton in a hydrogen atom. The collision occurred at the point where three tracks emanate on the right of the photograph. Credit: Argonne National Laboratory.{{free media}}

• Lecture: Neutrino astronomy.

November 7, 2022, Monday

These two hemispheric Lambert azimuthal equal area projections show the total magnetic field strength at the surface of the Moon, derived from the Lunar Prospector electron reflectometer (ER) experiment. Credit: Mark A. Wieczorek.{{free media}}

• Lecture: Beta-particle astronomy.

November 8, 2022, Tuesday

In the shadows, the Moon charges negatively in the interplanetary medium. Credit: Mdf.{{free media}}

• Laboratory: Standard candles, report is due on November 15, 2022.

• Quiz: Neutrino astronomy quiz.

• Quiz: Beta-particle astronomy quiz.

• Quiz section lecture: Electron astronomy.

November 9, 2022, Wednesday

This is a high-energy gamma radiation allsky image about the Earth, taken from Energetic Gamma Ray Experiment Telescope on the NASA’s Compton Gamma Ray Observatory satellite. Credit: United States Department of Energy.{{free media}}

• Lecture: Positron astronomy.

November 10, 2022, Thursday

The image shows a cap-off view of the insides of a spectrograph. Credit: Buil/AstroSurf.{{fairuse}}

• Lesson: First superluminal source in Indus, report due on November 17, 2022.
• Problem set: Spectrographs, solutions including work steps due on November 17, 2022.

• Quiz: Electron astronomy quiz.

• Quiz: Positron astronomy quiz.

November 11, 2022, Friday

A full-disk multiwavelength extreme ultraviolet image of the sun taken by SDO on March 30, 2010. Credit: NASA/Goddard/SDO AIA Team.{{free media}}

• Lecture: Electromagnetic astronomy.

November 14, 2022, Monday

This VLA image from a torus-shaped belt around Jupiter's equator doesn't look like a planetary disk at all. Credit: NRAO.{{fairuse}}

• Lecture: Synchrotron astronomy.

November 15, 2022, Tuesday

Emergence of IC 310 is captured in a series of images. Credit: A. Neronov et al. and NASA/DOE/LAT collaboration.{{fairuse}}

• Laboratory: Vertical precession, report is due on November 22, 2022.

• Quiz: Electromagnetic astronomy quiz.

• Quiz: Synchrotron astronomy quiz.

• Quiz section lecture: Color astronomy.

November 16, 2022, Wednesday

Gamma rays are emitted during radioactive decay processes such as those occurring in nuclear explosions. Credit: National Nuclear Security Administration, USA.{{free media}}

• Lecture: Gamma-ray astronomy.

November 17, 2022, Thursday

This is an image of quasar 3C 279 in gamma rays. Credit: NASA EGRET Compton observatory team.{{free media}}

• Lesson: First ultraviolet source in Sagittarius, report due on November 24, 2022.

• Problem set: Planck's equation, solutions including work steps due on November 24, 2022.

• Quiz: Color astronomy quiz.

• Quiz: Gamma-ray astronomy quiz.

November 18, 2022, Friday

This visible-light image of the Fireworks galaxy (NGC 6946) comes from the Digital Sky Survey and is overlaid with data from NASA's NuSTAR observatory (shown in blue and green). Credit: NASA/JPL-Caltech.{{free media}}

• Lecture: X-ray astronomy.

November 21, 2022, Monday

This is a FUV image of the Sun. Credit: NASA/SDO/AIA.{{free media}}

• Lecture: Ultraviolet astronomy.

November 22, 2022, Tuesday

The images show proof of concept using adaptive optics to enhance the resolution of the International Space Station. Credit: David Dayton, John Gonglewski, Sergio Restaino, Jeffrey Martin, James Phillips, Mary Hartman, Stephen Browne, Paul Kervin, Joshua Snodgrass, Nevin Heimann, Michael Shilko, Richard Pohle, Bill Carrion, Clint Smith, and Daniel Thiel.{{fairuse}}

• Laboratory: X-ray classification of a star, report is due on November 29, 2022.

• Quiz: X-ray astronomy quiz.

• Quiz: Ultraviolet astronomy quiz.

• Quiz section lecture: Optical astronomy.

November 23, 2022, Wednesday

The frame demonstrates an example of visual snow-like noise. Credit: Aza~commonswiki.{{free media}}

• Lecture: Visual astronomy.

November 24, 2022, Thursday

Visual image of Earth in natural color from Apollo 17. Credit: NASA/Apollo 17 crew.{{free media}}

• Lesson: First violet source in Leo, report due on December 1, 2022.

• Problem set: Synchrotron radiation problem set, solutions including work steps due on December 1, 2022.

• Quiz: Optical astronomy quiz.

• Quiz: Visual astronomy quiz.

November 25, 2022, Friday

Cherenkov radiation glows in the core of the Advanced Test Reactor. Credit: Matt Howard.{{free media}}

• Lecture: Violet astronomy.

November 28, 2022, Monday

This image shows the blue water ice, or blue ice, of a glacier. Credit: McKay Savage from London, UK.{{free media}}

• Lecture: Blue astronomy.

November 29, 2022, Tuesday

Images of Hanny's Voorwerp in Leo Minor and IC 2497 are taken by the Wide Field Camera 3 of the Hubble Space Telescope. Credit: NASA, ESA, W. Keel (University of Alabama), and the Galaxy Zoo Team.{{free media}}

• Laboratory: X-ray trigonometric parallax, report is due on December 6, 2022.

• Quiz: Violet astronomy quiz.

• Quiz: Blue astronomy quiz.

• Quiz section lecture: Cyan astronomy.

November 30, 2022, Wednesday

As sediment disperses into the Gulf of Mexico, the water fades to green and then black. Credit: NASA image courtesy the MODIS Rapid Response Team at NASA GSFC.{{free media}}

• Lecture: Green astronomy.

December 1, 2022, Thursday

Gases above Io's surface produced a ghostly glow that could be seen at visible wavelengths (red, green, and violet). Credit: NASA/JPL/University of Arizona.{{free media}}

• Lesson: First X-ray source in Andromeda, report due on December 8, 2022.

• Problem set: Radiation dosage, solutions including work steps due on December 8, 2022.

• Quiz: Cyan astronomy quiz.

• Quiz: Green astronomy quiz.

December 2, 2022, Friday

This image shows a cluster of yellow galaxies near the middle of the photograph. Credit: STScl/NASA.{{free media}}

• Lecture: Yellow astronomy.

December 5, 2022, Monday

The image shows the Namib-Naukluft National Park is full color. Credit: NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.{{free media}}

• Lecture: Orange astronomy.

December 6, 2022, Tuesday

Rho Cassiopeiae is a semi-regular pulsating star of spectral class G2Ia0e. Credit: Aladin at SIMBAD.{{fairuse}}

• Laboratory: Magnetic field reversal, report is due on December 13, 2022.

• Quiz: Yellow astronomy quiz.

• Quiz: Orange astronomy quiz.

• Quiz section lecture: Red astronomy.

December 7, 2022, Wednesday

The Trifid Nebula is a giant star-forming cloud of gas and dust located 5,400 light-years away in the constellation Sagittarius. Credit: NASA/JPL-Caltech/J. Rho (SSC/Caltech).{{free media}}

• Lecture: Infrared astronomy.

December 8, 2022, Thursday

This is a visual image of the Sun with some sunspots visible on the photosphere. The two small spots in the middle have about the same diameter as our planet Earth. Credit: NASA.{{free media}}

• Lesson: First yellow source in Aquila, report due on December 15, 2022.

• Problem set: Star jumping, solutions including work steps due on December 15, 2022.

• Quiz: Red astronomy quiz.

• Quiz: Infrared astronomy quiz.

December 9, 2022, Friday

Images from the Smithsonian's Submillimeter Array (SMA) telescope provide the most detailed view yet of stellar nurseries within the Snake nebula. Credit: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT; Spitzer/GLIMPSE/MIPS, Herschel/HiGal, Ke Wang (ESO).{{fairuse}}

• Lecture: Submillimeter astronomy.

December 12, 2022, Monday

The image shows charged particles moving along the galaxy's magnetic field. Credit: ESA/NASA/JPL-Caltech.{{fairuse}}

• Lecture: Microwave astronomy

December 13, 2022, Tuesday

This all-sky image shows the distribution of carbon monoxide (CO). Credit: ESA/Planck Collaboration.{{fairuse}}

• Quiz: Submillimeter astronomy quiz.

• Quiz: Microwave astronomy quiz.

• Quiz section lecture: Radar astronomy.

• Hourly: Principles of radiation astronomy hourly 3 for lectures 33-48, including quiz section lectures, lessons (except the last one), problem sets (except the last one), and laboratories not included in the first two hourlies.

December 14, 2022, Wednesday

The quiet Sun at 4.6 GHz imaged by the VLA with a resolution of 12 arcsec, or about 8400 km on the surface of the Sun. Credit: NRAO.{{fairuse}}

• Lecture: Radio astronomy.

December 15, 2022, Thursday

This image shows a cross-section of a portion of the north polar ice cap of Mars. Credit: NASA.{{free media}}

• Quiz: Radar astronomy quiz.

• Quiz: Radio astronomy quiz.

December 16, 2022, Friday

O3 Superevents are from LIGO & Virgo. Credit: Spto.{{free media}}

• Lecture: Gravitational astronomy.

December 19, 2022, Monday

In the time-lapse sequence, micro-quasar GRS1915 expels bubbles of hot gas in spectacular jets. Credit: R. Spencer (U. Manchester) et al., MERLIN, Jodrell Bank.{{fairuse}}

• Lecture: Superluminal astronomy.

December 20, 2022, Tuesday

Superluminal motion in quasar 3C279 is shown in a "movie" mosaic of five radio images made over seven years. Credit: NRAO/AUI.{{fairuse}}

• Quiz: Gravitational astronomy quiz.

• Quiz: Superluminal astronomy quiz.

December 23, 2022, Friday

The surface of the Sun emits infrared. Credit: National Solar Observatory, Kitt Peak, Arizona, USA.{{fairuse}}

• Final examination: Principles of radiation astronomy final exam covers everything in the course.

Alternate examinations that may be used by your college or university for credit (and a grade) in this course will be available from Wikiversity by courier for closed, proctored session testing of proficiency.

Hypotheses

Main article: Hypotheses

1. By subpaging as many of the lectures in this course as possible under radiation astronomy the overall popularity of the course, or lecture set, can be compared with other lecture sets here at Wikiversity.

See also

• Geology courses
• Radiation astronomy courses
• Solar astronomy course
• Stars courses
• X-ray astronomy course

External links

• International Astronomical Union
• NASA/IPAC Extragalactic Database - NED
• NASA's National Space Science Data Center
• Office of Scientific & Technical Information
• The SAO/NASA Astrophysics Data System
• SDSS Quick Look tool: SkyServer
• SIMBAD Astronomical Database
• SIMBAD Web interface, Harvard alternate
• Spacecraft Query at NASA
• Universal coordinate converter

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{{Radiation astronomy resources}}{{Technology resources}}