... Archives . ... ArXiv] The Importance of Being First: Position Dependent Citation Rates on arXiv:astro-ph . Dec 7th, 2007| 03:15 pm | ... There?s only one day in the first week of December with no preprint appearance. Dubbing the week of Dec. 2nd as the first week is hoped to be accepted. [stat.ML:0711.4983] . ... X-Atlas: An Online Archive of Chandra?s Stellar High Energy Transmission Gratings Observations O. W. Westbrook et.al. [astro-ph:0712.0618] . ... Category: arXiv | ... Chandra Blog . ...

... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... A cratered winter wonderland on Mars . Charitum Montes is a large group of rugged mountains pockmarked with craters and dusted with bright carbon-dioxide frost. ... The high-resolution stereo camera on the European Space Agencyт??s (ESA) Mars Express imaged the Charitum Montes region of the Red Planet June 18, near Gale Crater and Argyre basin. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

July 10-17, 2005, Arecibo, Puerto Rico . The following are the hands-on projects planned for the 2005 Single Dish Summer School. ... Project code: AO-1 . ... Students : Sabyasachi Pal, Matt Lykins, Paul Carr, Felipe Perez . ... Project Code: AO-2 . Title : Orbit determination of Binary Pulsars . ... In this project, the students will observe a binary pulsar with a short orbital period on several consecutive days. ... Project Code: AO-4, GBT-4 . ... Project Code: AO-5 (Canceled) . ...

Double Stars Drawing Worksheet Name: Date: Location: Double Star ( Object ): Antoniadi Seeing: Limiting Magnitude: Telescope Type: Telescope Aperture : Telescope Focal Length : Eyepiece Focal Length : Estimated P.A.: Color and Other Notes : Double Star ( Object ): Telescope Type: Telescope Aperture : Telescope Focal Length : Eyepiece ...

February 2010 ASTRONOTES Incorporating FRIENDS' NEWSLETTER The Heart of the Crab The sky this month Counting the stars Canals to Vikings: the heyday of Martian life Stunning image of the month ARMAGHPLANETARIUM 2 Astronotes February 2010 The heart of the Crab By Colin Johnston, Science Communicator On 4 July 1054 AD Yang Wei-T'e (?-?), astronomer to the Chinese emperor, carefully recorded a `guest star' in the constellation of Taurus. ... But what about the former star's core? ...

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