Astronomy 12 Links

(Graduate student Chris Dolan has assembled handy information about all the constellations, and the most important stars, nebulae, clusters, and galaxies that can be found in them. You can access things by name or by month of visibility, and there are good links to related sites for constellation fans.)

http://www.skypub.com/sights/sights.shtml
http://www.astro.uiuc.edu/%7Ekaler/skylights.html
http://www.earthsky.com/Features/Skywatching/today.html

What is happening in the sky this month

http://spider.seds.org/spider/ScholarX/coords.html

Astronomical coordinate systems

http://aa.usno.navy.mil/AA/data/

Sunrise, sunset, eclipses, Easter, path of sun in the sky, equinoxes, perihelion, moon phases, etc

Forces and Kepler's Laws

http://particleadventure.org/index.html AND http://www.particleadventure.org/4interactions.html

The four forces and particle physics

http://www.llnl.gov/str/JanFeb04/Rosenberg.html

The axion and dark matter

http://astro.unl.edu/naap/pos/animations/kepler.swf

Animation illustrating Kepler's Laws

http://zebu.uoregon.edu/textbook/planets.html

Kepler's Laws and links to information on Ptolemy's models

Terrestrial Impacts

http://www.solarviews.com/eng/tercrate.htm

Terrestrial Impact Craters

http://wwwdsa.uqac.uquebec.ca/~mhiggins/MIAC/chicxulub.htm/ http://www.man.ac.uk/Geology/special/stehoy.htm http://www.athenapub.com/crater1.htm

Chicxulub Crater

http://www.galisteo.com/scripts/tngscript/default.prl

Tunguska Meteorite

http://impact.arc.nasa.gov/torino/index.html

Torino hazard scale

http://whyfiles.org/074asteroid/index.html

General information on asteroids and impacts

Distance Determinations and Cosmology

http://sci.esa.int/interactive/media/flashes/2_1_1.htm

Parallax animation

http://www.astro.ucla.edu/%7Ewright/distance.htm

Summary of many distance determining techniques

http://www.rssd.esa.int/SA-general/Projects/Hipparcos/TOUR/pm.html

Proper motion over 100 years

http://bob.nap.edu/html/cosmology/

Cosmology and the CMBR

http://www.astro.ucla.edu/%7Ewright/cosmology_faq.html

General cosmology frequently asked questions

https://en.wikipedia.org/wiki/Olbers%27_paradox

Olber's paradox

http://www.cosmos.esa.int/web/hipparcos/

Hipparcos Website

http://www.supernova.lbl.gov/

Lawrence Berkeley Labs supernova team site (distances and cosmology info)

http://www-supernova.lbl.gov/public/figures/snvideo.html

A nice supernova movie on the Lawerence Berkeley Labs website

http://lcogt.net/spacebook/cepheid-variable-stars-supernovae-and-distance-measurement/

Elementary movie about distance determination

http://www.tulane.edu/~sanelson/geol212/radiometric_dating.htm

How to determine the age of the earth and solar system using raioactive dating

Radiation

http://skyview.gsfc.nasa.gov/skyview.html

This multi-wavelength "virtual observatory" allows you to dial up any part of the sky and ask to see what it looks like in various bands of the electro-magnetic spectrum.

http://eo.ucar.edu/skymath/tmp2.html

See especially the sections on "What is temperature?" and "Thermal Radiation" (aka blackbody radiation)

http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/sites/dl/free/0072482621/220727/Blackbody_Nav.swf::Blackbody%20Radiation%20Interactive

lets you see blackbody curves for different temperatures

http://umbra.nascom.nasa.gov/images/latest.html

Pictures of the sun - daily - in the uv, x-ray etc

http://mwmw.gsfc.nasa.gov/mmw_sci.html

Multiwavelength pictures of the Milky Way Galaxy

http://imagine.gsfc.nasa.gov/docs/science/toolbox/emspectrum2.html

Observatories at all wavelengths

Spectral Classification of Stars

http://zebu.uoregon.edu/~imamura/208/jan18/mk.html

Brief tutorial on the spectral classification system

http://imagine.gsfc.nasa.gov/docs/science/how_l2/spectra.html

See "line radiation"

http://zebu.uoregon.edu/spectra.html

This is a little advanced - the lines are not labelled

http://www.infinet.com/~riordan1/index.html

Atlas of stellar spectra but only for G and cooler (no OBAF stars).

Binary Stars and Mass Determination

http://astro.estec.esa.nl/Hipparcos/msa-tab7.html

The brightest double stars.

http://www.dibonsmith.com/starfile.htm

History of discovery of double stars.

http://user.mc.net/arf/doubst.htm

Pictures of binary stars.

http://ad.usno.navy.mil/wds/dsl.html

The double star library (DSL).

http://www.dibonsmith.com/orbits.htm

Visual Binary Orbit information

http://imagine.gsfc.nasa.gov/docs/teachers/lessons/star_size/star_size.html

Watch the movie of the light curve of an eclipsing spectroscopic binary

Planets

http://www.public.asu.edu/~sciref/exoplnt.htm

History of the search for extrasolar planets.

http://www.astro.psu.edu/users/pspm/arecibo/planets/planets.html

Pulsar planets

http://cfa-www.harvard.edu/planets

Extra-solar planets

http://nssdc.gsfc.nasa.gov/planetary/planets/

Planetary Missions, Data and Information

http://www.spaceart.org/lcook/extrasol.html

Artistic renderings of extra-solaor planets - not to be confused with actual observations

Star Formation

http://spacsun.rice.edu/%7Etwg/lism.html

The local interstellar medium. Nice graphics reconstructed (artistically) from data.

http://oposite.stsci.edu/pubinfo/stellarevolution.html

Pretty pictures of star birth taken with HST

http://www.aao.gov.au/images.html>

Pretty pictures of star forming nebulae taken at the Anglo-Australian Observatory. See especially "Dark nebulae", "Reflection nebulae" and "Emission nebulae". May be slow to load.

http://www.eso.org/outreach/gallery/astro/

More pictures of nebulae from the European Southern Observatory Click e.g., on "VLT", then on "nebulae"

http://www.noao.edu/image_gallery/nebulae.html>

And from the National Optical Observatories in North America

http://www-astro.phast.umass.edu/sfnews/index/

Rather technical site dealing with star formation

The Sun

http://www.sunspot.noao.edu/AOWEB/

National Solar Observatory Solar Adaptive Optics Project

http://dept.physics.upenn.edu/neutrino/solar.html

Implications of the solar neutrino experiments. (A good site but pretty technical.)
Note especially links to home pages for numerous experiments GALLEX , MPI-Heidelberg GALLEX; BOREXINO ; Gran Sasso ; SAGE, Baksan; SNO ; Superkamiokande, US Super-K, Kamioka mine, Irvine Super-K; Kamiokande; Karmen.

http://www.sns.ias.edu/~jnb/
http://www.sns.ias.edu/~jnb/Papers/Popular/popular.html

Popular articles and talks on solar neutrinos are given by John Bahcall

http://www.hao.ucar.edu/public/slides/slides.html

The active sun - sunspots, flares, etc

http://umbra.nascom.nasa.gov/images/latest.html

Current pictures of the sun at all wavelengths

http://www.sel.noaa.gov/primer/primer.html
http://www.hao.ucar.edu/public/education/education.html

Primers on various aspects of the sun

Post-Main Sequence Evolution

http://www.astro.washington.edu/balick/WFPC2/ http://www.astro.washington.edu/balick/

HST images of planetary nebulae and descriptions of what they are by Bruce Balick of the University of Washington

http://www.astro.uiuc.edu/~kaler/sow/star_intro.html