... 85, No. 11, pp. 972985. i The Stellar Population and Evolution of Galaxies of the NGC 80 Group O. K. Silchenko1 and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetski i pr. ... The bulges of five of the seven galaxies appear to be old, with the average age of the bulge stars being 1015 billion years. Signs of a relatively recent star-formation burst are observed in the small S0 galaxy IC 1548, whose average bulge age is 3 billion years and average core age is 1.5 billion years. ...
The Official Publication of the Amateur Astronomers Association of Princeton Director Rex Parker ( 609 ) 730-0670 rex_a_parker@msn.com Assistant Director John Miller ( 609 ) 252-1223 jmiller@princetonastronomy.org Treasurer Program Chairman Brian VanLiew Ken Kremer (908) 281-7957 ( 609 ) 558-4955 bvanliew@sensingstrategies.com ken@princetonastronomy.org Secretary Ludy D'Angelo ( ... Our guest speaker will be Dr. Guy Consolmagno of the Vatican Observatory. ... Observatory and Springtime Galaxies. ...
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Ссылки http://www.princetonastronomy.org/newsletters/05_2007sidereal.pdf -- 674.1 Кб -- 02.05.2007 Похожие документы
... Bad Astronomy . Misconceptions . ... Bitesize Astronomy . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... As I say on the page about orbits , at a year away Planet X must be roughly as far as Saturn (and therefore closer as you read this page). The distance from Earth in May 2002 should be about 900 million kilometers. ... Planet X, if it orbits on an ellipse, can get as far as 235 AU away, 7 times the distance of Pluto. ... 2008 Phil Plait. ...
... The double-sun planets, Kepler-34b and Kepler -35b are Saturn-like in mass and orbit a pair of stars (aka binary stars`). ... Along with 61 con rmed exoplanet discoveries, the project has announced 2,326 planet candidates, many of them earth-sized and many within their star's habitable zone. ... Another Kepler find, the Kepler-20 system, contains five planets, two of which are Earth-sized, though neither are in the habitable zone (they orbit their star in only 6.1 and 19.6 days, respectively). ...
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Ссылки http://www.aaa.org/EyepieceFiles/aaa/2012_03_March_Eyepiece.pdf -- 1858.4 Кб -- 14.10.2015 Похожие документы
Wright: Today is August 23rd, 2012, and this oral history interview is being conducted with Dr. Dorothy Simon in Pittsboro, North Carolina for the NASA Headquarters Oral History Project. ... He had about three people in the same position working with approximately 30 people. ... Simon: Well, of course the heat shield was one that lots of people had to work on before it was a success. ... This list includes the names of the people who worked with Dr. Dorothy Simon and a summary of the work. ...