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Astronomy Links

Astronomy Catalogs, Databases:
NASA Astronomical Data Center
(Portal to access hundreds of Astronomy Catalogs)
http://adc.gsfc.nasa.gov/

VizieR Service
(Portal to thousands astronomy catalogs, queries, etc)
http://vizier.u-strasbg.fr

CADC - Canadian Astronomical Data Centre
(Portal to astronomy catalogs, database)
http://cadcwww.dao.nrc.ca/

GSC Star Catalog
(v.1 - 19 milion obj, v.2 ~ 500 milion obj, queries)
http://www-gsss.stsci.edu/support/data_access.htm

USNO Star Catalogs
(Query USNO-A2, 526 milion stars)
http://cadcwww.dao.nrc.ca/cadcbin/getusno2

2MASS - The Two Micron All Sky Survey
(Stars & galaxies catalog/database and atlas/images in the near infrared)
http://www.ipac.caltech.edu/2mass/

DSS - CADC Digitized Sky Survey Interface
(Sky atlas/images and catalog online to query)
http://cadcwww.dao.nrc.ca/cadcbin/getdss

DSS - The STScI Digitized Sky Survey
(Sky atlas and catalog online, queries, images)
http://archive.stsci.edu/cgi-bin/dss_form

Aladin (CDS - Centre de Données astronomiques de Strasbourg)
(Interactive Sky Atlas Online)
http://aladin.u-strasbg.fr

SIMBAD Astronomical Database (CDS, France)
(Astr object query by identifier, coordinate, reference code)
http://simbad.u-strasbg.fr

Ephemeris (Planets, Asteroids, Comets, Satellites):
HORIZONS Ephemeris Generator
(JPL, planets, asteroids, comets)
http://ssd.jpl.nasa.gov/cgi-bin/eph

ASTEPH Asteroid Ephemeris Generator
(Asteroid Ephemeris by Lowell Observatory)
http://asteroid.lowell.edu/cgi-bin/koehn/asteph

Serveur d´éphémérides (BdL, Paris)
(Serveur d'ephemerides, incl. some planetary theories)
http://www.imcce.fr/ephemeride.html

Minor Planet & Comet Ephemeris Service
(Ephemerides, queries, observability, etc)
http://cfa-www.harvard.edu/iau/MPEph/MPEph.html

Small-Body Search
(Object Identification from Observations, good to check for a possible discovery!)
http://ssd.jpl.nasa.gov/cgi-bin/sb_search

MPChecker: Minor Planet Checker
(Check for known asteroids in a given region)
http://scully.harvard.edu/~cgi/CheckMP

ICQ Comet Information Website:
(Comet eph, visibility, data, history)
http://cfa-www.harvard.edu/icq/icq.html

IAU Minor Planet Centre
(Asteroid eph, )
http://cfa-www.harvard.edu/iau/mpc.html

USNO Astronomical Applications Department
(Data Tables, Software, Algorithms, etc)
http://aa.usno.navy.mil/

Solar System Data:
JPL Solar System Dynamics
(Solar System Data, JPL/NASA)
http://ssd.jpl.nasa.gov/

Planetary Satellite Mean Orbital Parameters
(Planetary moons & mean orbital elements)
http://ssd.jpl.nasa.gov/sat_elem.html

ASTORB Database
(The Asteroid Orbital Elements Database, Ted Bowell)
ftp://ftp.lowell.edu/pub/elgb/astorb.html

Meteors:
IMO (The International Meteor Organization)
http://www.imo.net/

The American Meteor Society
http://www.amsmeteors.org/

IMO Fireball Data Centre
(Report bolid observations)
http://www.imo.net/fireball/index.html

MIAC (Meteorite and Impacts Advisory Committee, Canada)
http://dsaing.uqac.uquebec.ca/~mhiggins/MIAC/MIAC.html

Near Earth Objects:
JPL Near-Earth Object Program
(NEOs, close approaches, impact risks, etc)
http://neo.jpl.nasa.gov/

NeoDys (Near Earth Objects Dynamics Site, Italy)
(NEA elements, database, impact risks, etc)
http://newton.dm.unipi.it/cgi-bin/neodys/neoibo

LINEAR (Lincoln Near Earth Asteroid Research)
(US Air Force and NASA)
http://www.ll.mit.edu/LINEAR/

The Spacewatch Project
(Lunar and Planetary Laboratory, Univ of Arizona)
http://spacewatch.lpl.arizona.edu/

LONEOS (Lowell Observatory Near-Earth Object Search)
http://www.lowell.edu/users/elgb/loneos_disc.html

NEAT (Near Earth Asterod Tracking, JPL)
http://neat.jpl.nasa.gov/

EARN (European Asteroid Research Node)
(NEA and PHAs database, distributions, physical properties)
http://earn.dlr.de/

The Spaceguard Foundation
http://spaceguard.ias.rm.cnr.it/

Eclipses, Occultations:
Fred Espenak Eclipse Home Page
(Solar & Lunar eclipses, maps of visibility, timings)
http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html

IOTA (International Occultation Timing Association, US)
http://www.lunar-occultations.com/iota/iotandx.htm

Asteroid Occultations Europe, North Africa and Middle East
(By Ludek Vasta & Jan Manek)
http://sorry.vse.cz/~ludek/mp/

IOTA Asteroidal Predictions
(for Western hemisphere and areas not covered by other sites)
http://www.lunar-occultations.com/iota/asteroids/astrndx.htm

Deap Sky Objects
NED - NASA/IPAC Extragalactic Database
(Server of nonstellar objects, references, papers, etc)
http://nedwww.ipac.caltech.edu/

Introduction to Galaxies (Personal, Wiedenhoff)
http://www.wiedenhoff.nu/galaxy/

Astronomy News:
Science @ NASA
(Astronomy news, subscription, etc)
http://science.nasa.gov/

Space Telescope Science Institute
(Press release archives)
http://oposite.stsci.edu/pubinfo/pr.html

Space Today Online
(Space & astronomy news & info)
http://www.spacetoday.org/

ESA Science
(European Space Agency news & info)
http://sci.esa.int/index.cfm

Sky & Telescope
(Popular astronomy magazine, news, etc)
http://skyandtelescope.com/news/

Astronomy Education:
Teachers' Newsletter The Universe in the Classroom
(ASP's astronomy education topics, exercises, etc)
http://www.astrosociety.org/education/publications/tnl/tnl.html

Light and Matter: educational materials for physics and astronomy
(A few introductory .pdf textbooks for high school or college level)
http://www.lightandmatter.com/

ADS Digital Library
(A few astronomy books online)
http://ads.harvard.edu/books/

Core List of Astronomy Books
(List of major astronomy books)
http://ads.harvard.edu/books/clab/

GSU Astronomy Labs
(Introductory Astronomy Labs, Georgia Univ)
http://joy.chara.gsu.edu/~lab/

CLEA Project
(Practical astronomy labs to download, Gettysburg College, US)
http://www.gettysburg.edu/academics/physics/clea/CLEAhome.html

Star Quiz
(11 basic astronomy tests with answers)
http://www.starclass.com.au/quiz/quiz.html

Evolution of the Solar System (NASA)
(Solar System texbook online)
http://history.nasa.gov/SP-345/contents.htm

Astronomy Notes
(Online astronomy course for beginers)
http://www.astronomynotes.com/

How to compute planetary positions (by Paul Schlyter)
(Practical guide, two body problem incl some perturbations)
http://hotel04.ausys.se/pausch/comp/ppcomp.html

Telescopes:
How To Build A Telescope - by Olle Eriksson
(A step-by-step guide to build your own 8-inch Dobsonian telescope)
http://www.olle-eriksson.com/Default.aspx?page=Article&id=115

Observations, Observing Tools:
The Constellations and their Stars
(A brief constellation guide by Chris Dolan)
http://www.astro.wisc.edu/~dolan/constellations/constellations.html

BinoSky (Practical guide about stargazing with binoculars)
http://www.lightandmatter.com/binosky/binosky.html

Hunting Asteroids From Your Backyard
(Dennis di Cicco, S&T)
http://skyandtelescope.com/printable/observing/objects/asteroids/article_381.asp

Basics of Meteor Observing
(Sky & Telescope, Alan M. MacRobert)
http://skyandtelescope.com/printable/observing/objects/meteors/article_101.asp

Advanced Meteor Observing
(Sky & Telescope, Alan M. MacRobert)
http://skyandtelescope.com/printable/observing/objects/meteors/article_105.asp

View from Satellite
(View the Earth as seen from a satellite in Earth orbit)
http://www.fourmilab.ch/earthview/satellite.html

Signal-to-noise calculator for CCD photometry
(Calculates S/N for a star obs with a telescope & CCD)
http://stupendous.rit.edu/richmond/signal.shtml

Bad Astronomy (Phil Plait)
(Misconceptions, questions, answers)
http://www.badastronomy.com/

TASS, The Amateur Sky Survey
http://www.tass-survey.org/tass/tass.shtml

Interested in a Career in Astronomy?
AAS Astronomy Job Register
(Jobs in Astronomy, mostly in the US)
http://www.aas.org/JobRegister/

103 FAQs about A Career in Astronomy (The Astronomy Cafe)
(Things to know about a career in astronomy - Sten Odenwald)
http://www.itss.raytheon.com/cafe/qadir/acareer.html

Un ghid practic pt aspirantul la doctorat in US
(Mihai Budiu, abvice about admission to PhD in the US, in Romanian)
http://www.cs.cmu.edu/~mihaib/articles/ghid-doc/index.html

Astrophotography, Images:
Catching the light - astrophotography by Jerry Lodriguss
(Deep sky photo/images, techniques, etc)
http://www.astropix.com/

Astronomy Picture of the Day (NASA)
http://antwrp.gsfc.nasa.gov/apod/astropix.html

Astronomy Publications:
The NASA Astrophysics Data System
(Major professional journals online)
http://adsabs.harvard.edu/

ArXiv e-Print archive
(Recent preprints in (Astro)physics, Math, Computers)
http://www.arxiv.org/

Handbook of Space Astronomy and Astrophysics
(Cambridge University Press - Dictionar online by Martin V. Zombeck, SAO)
http://ads.harvard.edu/books/hsaa/idx.html

Astronomy Software Portals:
Planetarium Software
(Astronomy software list for Windows, Mac, X/Linux, web)
http://www.seds.org/billa/astrosoftware.html

Astronomy Software
(Freeware, shareware and commercial Software list)
http://www.physics.sfasu.edu/astro/software.html

SourceForge Astronomy Software
(Astr software for Linux, Windows, other OSs)
http://sourceforge.net/softwaremap/trove_list.php?form_cat=134&page=1

Other Astronomy Portals:
List of astronomy resources
(HEASARC - High Energy Astrophysics NASA)
http://heasarc.gsfc.nasa.gov/docs/www_info/webstars.html

Essentiel ressources d´astronomie sur le reseau internet
(Institut de Mecanique Celeste, BdL, Paris)
http://www.imcce.fr/webastro.html

Astronomy Links
(Scott Berfield - copy from Sky & Telescope?)
http://www.berfield.com/astrolinks.html

Astronomy Links
http://astronomylinks.com/

For any other specific enquery, ask Google: http://www.google.com
(For example enter: "Astronomy Links" in the search line)

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