... Its apparent diameter of 18.0 arc minutes corresponds to a linear extension of about 180 light years; Kenneth Glyn Jones mentions an estimate of even 20 arc minutes from deep photographic plates, corresponding to about 200 light years linear diameter. It appears somewhat smaller in amateur instruments, perhaps about 10 minutes of arc. ... Red: 20x3 minute subs, totaling 1 hour . Green: 20x3 minute subs, totaling 1 hour . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... тАЬEarthshine at APOтАЭ . Dr. Ed Turner, Princeton University . ... Dr. Tom Harrison, New Mexico State University . ... Leslie Hebb, Johns Hopkins University . тАЬThe APOLLO Project at APOтАЭ . ... тАЬThe Colorado Hubble Space Telescope Program . ... Bhasker Moorthy, New Mexico State University . ... Dr. Jon Holtzman, New Mexico State University . ... at Johns Hopkins and APOтАЭ . ... Dr. George Wallerstein, University of Washington . ... Dr. Kurt S.J. Anderson, New Mexico State University . ...

... Structural Analysis of Disk Galaxies of the NGC 524 Group M. A. Il'ina and O. K. Sil'chenko * Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia Received February 24, 2012; in final form, March 2, 2012 Abstract--Members of the NGC 524 group of galaxies are studied using data obtained on the 6m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences, with the SCORPIO reducer in an imaging mode. ... NGC 502. ... NGC 524. ... Rev. Astron. ...

The Official Publication of the Amateur Astronomers Association of Princeton Director Bill Murray (609) 298-1179 strgazr@comcast.net Assistant Director John Church (609) 799-0723 j.church@mindspring.com Treasurer Michael Mitrano (609)-737-6518 michael.mitrano@att.net Program Chairman ... (609) 273-1456 (908) 859-1670 and (609) 448-8644 kane@princetonastronomy.org editors@princetonastronomy.org Volume 39 From the Director March ... Point your browser to http://www.princetonastronomy.org/ 2. ...

... Hughes was conducted on September 25, 2013, in Houston, Texas, for the NASA Johnson Space Center Oral History Project. ... Hughes: My kids got really interested in this business, just that fact that we?re doing it, because it?s that same thing. ... They were just ready to go. ... The way this worked, anyway, they worked in just briefs, socks and tennis shoes, and work gloves, and they?d go down for about 2 minutes at a time, one at a time, to work, then pop back up, and another person would go down....