I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

... At 22:42:27 UT 26/07/09, the Burst Alert Telescope (BAT) on board of the SWIFT multi-wavelength space observatory triggered and located GRB 090726 gamma-ray burst event. ... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... THANK YOU NASA. ... I decided to return to a full-time job (after a 15-year hiatus raising my children). I took a civil service exam, was called the next day and assigned as a GS-5 to the Flight Operations Division, NASA Space Task Group, to Chris [Christopher C.] Kraft and Charles [W.] Mathews (Chief) located in separate buildings, on the West Side of Langley Air Force Base. ... Chris Kraft was also the Mission Flight Director for the Mercury Astronauts. ... Return to JSC Oral History Website . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

. This is a new popup window - close it when you are done . Submitted by Paul Valleli on 06/16/2008 13:42:29 . Dome moved to rear ( East) of the Obs. building . only two people needed to lift 200 pound dome in short moves . Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

... Hidden Hollow 2008 . ... 720 OH-97 W . ... Our Location, Maps, . ... Warren Rupp Observatory, the site of Hidden Hollow 2008 Star Party, is located in Hidden Hollow Camp. The camp is in the scenic Possum Run Road area away from traveled roads. ... FROM NORTH: Take I-71 S. Take the OH-13 exit- EXIT 169- toward BELLVILLE / MANSFIELD. Turn LEFT onto OH-13 S. Turn LEFT onto POSSUM RUN RD. ... Turn RIGHT onto OH-97. Turn LEFT onto MAIN ST / OH-13 / OH-97. ... Turn RIGHT onto POSSUM RUN RD. ...

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