141. New Scientist Breaking News - Astronomers Unravel Cosmic Explosion astronomers have taken a big leap towards solving a longstanding mystery – the The breakthrough came when, for the first time, astronomers were able to http://www.newscientist.com/article.ns?id=dn7825&feedId=online-news_rss20

142. MuslimHeritage.com - Topics Articles on astronomers, observatories, work performed and its significance from the ninth to the fifteenth centuries. http://www.muslimheritage.com/topics/default.cfm?TaxonomyTypeID=18&TaxonomyS

143. Who Are The Black Astronomers And Astrophysicists? In these web pages we profile those modern astronomers of the african diaspora. astronomers, Astrophysicists, and Cosmologists (below). Physicists http://www.math.buffalo.edu/mad/physics/astronomy-peeps.html

Beth A. Brown Arthur B.C. Walker Neil deGrasse Tyson From an article (in pdf) From Banneker to Best: Some Stellar Careers In Astronomy and Astrophysics , an article on Black Astronomers by Robert Fikes Today (2002) only 16 of the 3,302 PhD physicists at US National Labs are black. In these web pages we profile those modern astronomers of the african diaspora. Astronomers Astrophysicists , and Cosmologists below Physicists Faces of African Americans in Astronomy National Society of Black Physicists back to the main Physics page Posters and Exihibiton: African Americans in Space Science Who are the Black A STRONOMERS STROPHYSICISTS (click on links below for more) Stephon Haigh-Solom Alexander - young mathematical cosmologist Harvey Banks first African American Ph.D. in Astronomy Gibor Basri - Berkeley Professor on brown dwarfs is the most published African American Astronomer. Jason Best - young astrophysicist Beth Brown - NASA Astronomer George Carruthers - principal inventor of the Far Ultraviolet Camera/Spectrograph that accompanied the Apollo 16 mission Chantale Damas Stanley Davis Aaron S. Evans

144. History Of Astronomy: Persons Catalogue of biographical links covering hundreds prominent astronomers, past and present. Also in German http://www.astro.uni-bonn.de/~pbrosche/hist_astr/ha_pers.html

History of Astronomy History of Astronomy: Persons Deutsche Fassung Short biographies and links The following pages include not only astronomers, but also persons with relation to astronomy: Scholars from other fields who did investigations in astronomy, makers of astronomical instruments, etc. In some cases the only relation to astronomy is that a feature on the Moon or on other planets was named after that specific person. Astronauts are included only when there was some relation of their work to astronomy. A document containing information on astronomers and related scientists is hyperlinked here only in case it provides more or less extended biographical data or it is devoted exclusively to a single person. For a large number of short biographies see the hyperlinks in the document More biographies Currently, the following pages contain more than 4600 different links to external documents for more than 1750 persons or on general items. A B C D ... A Finding List of Obituary Notes of Astronomers (1900 - 1997) Compiled by Hilmar W. Duerbeck and Beatrix Ott, with contributions by Wolfgang R. Dick Contains more than 9000 bibliographical entries for obituaries and short obituary notes.

145. SideWalk Astronomers Official website of the SideWalk Astonomers organisation, California, USA. Bringing astronomy to the public. http://www.sidewalkastronomers.us/

Presenting the Sidewalk Astronomers Welcome to one of the official websites of our organization, which is dedicated to public service in astronomy. Since 1968, Sidewalk Astronomers' primary purpose has been to fill the need for public astronomical observation. More in the article "The Sidewalk Astronomers" Available are discussion forums on the subjects presented at this site, multimedia gallery with pictures and movies, and links to valuable related resources on the Internet. John Dobson: The Visionary Also available are materials related to John Dobson. Co-founder of Sidewalk Astronomers and creator of the Dobsonian telescope mount. His scientific musings are very thought provoking and, like Einstein's Relativity, require us to re-examine many of our long-held views. Dobson's theories in physics and cosmology boldly break new ground and significantly challenge the scientific orthodoxy. More in the article "John Dobson: A Brief Biography" If you have News, Articles, Photos, or Links that you would like to add, or any comments about the content of this site, please contact dsmith1055@earthlink.net

146. Sky And Telescope - The Essential Magazine Of Astronomy Various articles about light pollution including one on the history of the problem, one on rating the darkness of your sky, one on how astronomers can do more to help reduce light pollution and one on good lighting fixtures. http://skyandtelescope.com/resources/darksky/

Welcome to SkyandTelescope.com, where you'll find astronomy news, stargazing tips, expert advice on choosing and using telescopes, and much, much more. Your Web browser appears to be set to block cookies. SkyandTelescope.com requires a cookie file, though you may visit the site without supplying any personal information, rendering the cookie anonymous. If you believe you reached this page in error, try clicking one of the links below to access our site. Our interactive sky chart and astronomical almanac require that you specify a city and country, but no name, address, or other personal information. You may delete the cookie after your visit, but you will then have to reenter your location information next time. To learn how to configure your system to accept cookies while visiting Web sites and/or to delete them afterward, see your browser's help page. Some browsers will allow you to accept SkyandTelescope.com's cookie without having to accept cookies from other sites. If you have any questions, please send e-mail to custserv@SkyandTelescope.com

147. Quasar - SBVAA Web Site San Bernardino Valley Amateur astronomers web site containing the lastest club news, calendar, activities and information. http://www.sbvaa.org/

Mars Rovers Info Cassini Mission Latest News: Current Phase: Current Sun SpaceWeather UPDATED: January 14, 2005

148. Astronomy In Questions And Answers A comprehensive collection of simple facts about the planets, the solar system, meteors, stars, galaxies, and astronomers. http://www.astronomy.facts-on.com

astronomy in questions and answers Site Search Questions and answers The Sun The Earth The Moon Mercury, Venus and Mars ... Scientists and Astronomers Most popular questions Q: How many craters are there on the Moon? A: On the side of the Moon that is visible from the Earth are 30,000 visible craters. There are many more small craters there which we cannot see. They are smaller than 1/4 of a kilometre in diameter. Q: How long is the tail of a comet? A: There are some comets which have no tail as they passed near the Sun. As a rule, however, comets' tails are very, very long. The tail of Halley's comet was about 160 million kilometres long, longer than the distance between the Earth and the Sun. The Great comet of 1843 had a tail over 480 million kilometres in length. Link To Us Contacts Us

149. Home Base You have found the home page of the Twin City Amateur astronomers, bringing astronomy to the masses in the twin cities of BloomingtonNormal, Illinois, http://twincityamateurastronomers.org/

Greetings! Greetings and salutations, enlightened web traveler! You have found the home page of the Twin City Amateur Astronomers , bringing astronomy to the masses in the twin cities of Bloomington-Normal, Illinois, and the surrounding county. Since 1960, the members of the Twin City Amateur Astronomers have explored the heavens, sought to share the joys of astronomy with the community, and generally just have a good time. These web pages represent an extension of our mission: now we are not only bringing astronomy to the masses in situ , as it were, but in a virtual way, to people hunched over their computer monitors. Hey, people, straighten up! New, New, New! Our next public observing session is this Saturday, the 10th of September, at 8 PM, and the weather is shaping up to be exceedingly fine. Join us for a great night under the stars. Check out the 2005 Public Observing Schedule for details and directions. Our President, Lyle Rich, tragically passed away on August 26th, far, far too soon: our thoughts and prayers are with his family. Our newest Observer includes a remembrance.

150. Lumicon - World's Best Filters Products include Easy Guiders, hypered film and hyper kits, diagonals, the Sky Vector NGC, richfield viewers and many other accessories for amateur astronomers. http://www.lumicon.com/

Welcome to Lumicon "World's Best Filters and Accessories" Frequently Asked Questions Lumicon International offers you the best and most extensive line of astronomical filters in the world. Filters for every imagined visual and astrophotographic application, in many configurations and sizes. Filters for deep sky objects, galaxies, nebulae, planets, planetary nebulae, light polluted skies, comets, and solar prominences. All UHC, Deep Sky, OIII and H-Beta filters are individually inspected and tested on a Perkin-Elmer Double-Beam Spectrophotometer. We proudly inscribe the % of transmission for each of the primary lines. In addition to the world's best filters, Lumicon proudly offers you the most unique patented and useful accessories, including the world-famous series of Easy Guiders, Richfield Viewers, Sky Vectors, diagonals, finderscopes, illuminated reticles, guiding eyepieces, Binoviewers, and visual and astrophotographic accessories. Lumicon also exclusively offers you hypered films and hyper kits. All of Lumicon International products come with a 100% satisfaction guarantee ( please see below ). So browse through our web site, e-mail us or call us for any questions or comments. Order directly from us or visit any Lumicon authorized astronomy retailer's showroom. Enjoy !

151. C88 - An Informational Tool For Amateur Astronomers C88 provides detailed informations about the celestial sphere objects, visible with naked eyes and for the use of an eyepiece of a modest amateur telescope to observe deep sky objects. http://www.alcyone.de/c88/english/index.htm

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152. HubbleSite - Astrofiles About "Hubble Provides Multiple Views Of How To Feed A B Later astronomers with more powerful telescopes identified many of these objects as 1949 astronomers had just developed another technique to study http://hubblesite.org/newscenter/newsdesk/archive/releases/1998/14/astrofile/

news GALLERY DISCOVERIES FUN ... astrofile Background information Key Events in the History of Centaurus A 1847: Sir John Herschel was the first to report observations of what we now know as NGC 5128, or its radio name Centaurus A. In his "Outlines of Astronomy," published in 1849, Herschel described it as "two semi-ovals of elliptically formed nebula appearing to be cut asunder and separated by a broad obscure band parallel to the larger axis of the nebula, in the midst of which a faint streak of light parallel to the sides of the cut appears." 1848-1949: Despite Herschel's observation, astronomers paid little attention to Centaurus A for about 100 years because they considered it another one of those nebulous, fuzzy objects originally thought to be in our own galaxy. Even Edwin Hubble called it a nebulous object. Later astronomers with more powerful telescopes identified many of these objects as galaxies. Centaurus A also was largely ignored because of the lack of large optical telescopes in the southern hemisphere, where this galaxy can be seen. 1949: Astronomers had just developed another technique to study celestial objects besides optical light: special instruments to collect radio waves. Using an 80-foot radio antenna at Dover Heights, Australia and radio waves reflected off the nearby sea, astronomers John Bolton, G. Stanley, and Bruce Slee were the first to identify Centaurus A as a powerful radio galaxy. Radio waves from Centaurus A were among the first to be linked to an extragalactic object.

153. Wwwgro.unh.edu8080/comptel/comptel_publications.html Introduction to IDLThe data reduction and display software that most astronomers are familiar with, Some astronomers object in principle to paying for software. http://wwwgro.unh.edu:8080/comptel/comptel_publications.html

154. INAF-OAT Trieste Facilitates collaboration in solar phvsics among European solar astronomers. Contains details about JOSO's aims, structure, meetings and working groups. http://joso.oat.ts.astro.it/

Osservatorio Astronomico di Trieste INAF Direttore: John Danziger Via Tiepolo 11 34131 Trieste, tel.0403199111 fax.040309418 Basovizza 302 34012 Trieste, tel 040226176 fax.040226630 E-mail: username@ts.astro.it English Version Pagina in sviluppo ATLAS 12 WORKSHOP video dell'OAT(file.mpg 109Mb) realizzato da G.Buzan Lista delle pubblicazioni referate (dal 01-2002 al 07-2005) IV Convegno della Ricerca Italiana in Fisica Solare e Relazioni Sole-Terra Trieste, 18-20 Ottobre 2005 L'OSSERVATORIO Sede Centrale:Villa Basevi e Villa Bazzoni Sede Basovizza Organi di gestione Come raggiungerci ... Concorsi e Borse SERVIZI Servizio archivi astronomici Biblioteca Sistemi informativi Servizi interni ... Progetti europei DIDATTICA

155. Vancouver, Washington USA The Vancouver Sidewalk Astronomers Are A The Vancouver Sidewalk astronomers are a loosely knit group of amateur astronomers from the Vancouver / Portland area dedicated to sharing a view of the http://vancouversidewalkastronomers.org/

Vancouver, Washington USA The Vancouver Sidewalk Astronomers are a loosely knit group of amateur astronomers from the Vancouver / Portland area dedicated to sharing a view of the heavens with all who are interested. Typically a "Star Party" is scheduled and interested individuals are notified of the time and place. Frequently a telescope or other equipment is demonstrated for the budding astronomer. At times a general invitation to the public is advertised in "The Columbian" At a star party all interested are welcome to stop and take a peek through the telescopes. Occasionally astronomy classes are given with a star party following. Teachers are welcome to contact us regarding setting up star parties for individual classes. Star parties provide an excellent way to be introduced to astronomy. Unlike most sciences, the amateur can play a major role in astronomy. Most of the commercial or institutional telescopes have to be put to some very specialized uses in order to justify the cost of their existence. Many tasks of astronomy can only be accomplished by dedicated amateur astronomers equipped with small telescopes and simple equipment. Contact E-mail VSA Founder Stan Seeberg with any questions.

156. Record Breaker: A Planet From The Early Universe: Science News Online, July 12, astronomers have found the oldest and most distant planet known in the universe. http://www.sciencenews.org/articles/20030712/fob1.asp

Science News Books. Subscribe to Science News ... Science News for Kids Math Trek Improving the Odds in RISK Food for Thought Cholesterol Medicine for Eggs? Science Safari Strange Matter TimeLine 70 Years Ago in Science News Science News e-LETTER. ... Week of July 12, 2003; Vol. 164, No. 2 , p. 19 Record Breaker: A planet from the early universe Ron Cowen Astronomers have found the oldest and most distant planet known in the universe. OLD ORB. Artist's view of the planet (top) orbiting a pulsar and its white dwarf companion (two brightest dots at lower left) in the globular cluster M4. NASA and G. Bacon/STScI Residing 7,200 light-years away, the planet weighs 2.5 times as much as Jupiter and formed when the universe was an infant, Steinn Sigurdsson of Pennsylvania State University in State College and his colleagues report in the July 11 Science The planet's very existence suggests that such orbs formed relatively soon after the Big Bang. Moreover, the object's location—near the crowded core of a star cluster, where planetary systems might easily be ripped apart—indicates that planets might be more abundant than thought. The planet lies near the center of the globular cluster M4, a dense grouping of stars about 12.5 billion years old. Old stars such as these are metal poor because they formed before subsequent generations of stars had produced heavy elements in abundance. Astronomers have found most extrasolar planets orbiting younger, relatively metal-rich stars. That led astronomers to rate ancient globular clusters as unlikely venues for planets. Indeed, in a 1999 study looking for planets that closely orbit stars in the globular cluster 47 Tucanae, the Hubble Space Telescope failed to find a single one.

157. Important Astronomers, Their Instruments And Discoveries 1 Alexandrian astronomers Aristillus and Timocharis charted the positions of the brighter stars (284 BC), producing the first star catalog using a Crossstaff http://obs.nineplanets.org/psc/hist1.html

Important Astronomers, their Instruments and Discoveries by Paul M. Rybski Part 1 Pre-telescopic Instruments, their Inventors and Users Merkets and Waterclocks Babylonian observations (1500 BC?) recorded solar and lunar eclipses as well as planetary observations using merkets and waterclocks. Macedonian philosopher Thales of Miletus (575-532 BC?) predicted a solar eclipse using Babylonian observations and mapped out constellations to aid navigation. Alexandrian astronomer Eratosthenes (260-201 BC?) measured the circumference of the Earth using comparative shadow rod measurements in two places and knowledge of the distance between them. The Cross-Staff Alexandrian astronomers Aristillus and Timocharis charted the positions of the brighter stars (284 BC), producing the first star catalog using a Cross-staff. Aristarchus of Samos (250 BC?) calculated the distance of the Sun from the Earth and the Moon and Sun's sizes relative to Earth by observations during solar and lunar eclipses and at first quarter Moon using a Cross-staff. Armillary Spheres Eratosthenes (204 BC) catalogued more than seven hundred stars using one, and possibly two, armillary spheres.

158. Sky And Telescope - The Essential Magazine Of Astronomy Geared towards amateur astronomers. Astronomy news, sky charts, product reviews, indepth articles on the science of astronomy, and weekly sky observing guides. http://www.skyandtelescope.com/

Welcome to SkyandTelescope.com, where you'll find astronomy news, stargazing tips, expert advice on choosing and using telescopes, and much, much more. Your Web browser appears to be set to block cookies. SkyandTelescope.com requires a cookie file, though you may visit the site without supplying any personal information, rendering the cookie anonymous. If you believe you reached this page in error, try clicking one of the links below to access our site. Our interactive sky chart and astronomical almanac require that you specify a city and country, but no name, address, or other personal information. You may delete the cookie after your visit, but you will then have to reenter your location information next time. To learn how to configure your system to accept cookies while visiting Web sites and/or to delete them afterward, see your browser's help page. Some browsers will allow you to accept SkyandTelescope.com's cookie without having to accept cookies from other sites. If you have any questions, please send e-mail to custserv@SkyandTelescope.com

159. Kennedy Space Center's Amateur Astronomers' Monthly star parties with maps, members personal home pages, astronomy and astrophysical links, and calendar of events. http://www.4saleusa.net/kscaa/

"Dedicated to the Understanding and Knowledge of the Heavens God Made for Us to Observe!" "Sharing Astronomy with Friends" Astronomy Homepages worthy of Special of Note this Clear Sky Clock is provide by http://cleardarksky.com, thanks Attilla Danko Personal Web Pages of Club Members EHarm.net Star Fields Observatory John Boyd's Homepage Star Trails Observatory ... Wyck's 24" Truss Dob F 4.1 Astrophotography Astro-Photography Mailing List (APML) Archives AstroPhotography Basic Primer Star Party Etiquette Things to Remember When Attending Your First Star Party (REVISED) Astronomy Reference Information Meisser Deep Space List (SEDS.ORG) Herschel 400 List Constellations LIST Telrad Sky Maps showing all Messier Objects (Very Nice) ... Telrad Charts for Messier and Caldwell Objects(Very Nice) Astronomy Clubs and Links The Southeast Region of the Astronomical League Listing of Florida and US astronomy club provided by ****SKY-Watch**** Alachua Astronomy Club ... Listing of Florida Astronomy Clubs - Astromony-Mall (some with Homepages) Free Astronomy Classified for Amateur Astronomy Equipment Most sellers on both services are very reputable but always use caution when buying on the Internet AstroMart Astrofieds Classifieds Very Cool Monthly Astronomy Maps SkyMaps.com- This Month's Sky-Viewing Calendar

160. Newton Chilean private nonprofit organization for scientific research in astronomy, supporting over 300 staff astronomers in 15 european countries. Lists information about the organization and published research papers. http://www.ini.cl

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