... 2010 October 7 . Pacman and Hartley . ... Explanation: Touring the solar system with a 6 year orbital period , small comet Hartley 2 (103/P Hartley) will make its closest approach to planet Earth on October 20 and its closest approach to the Sun on October 28. ... Over the next few days Comet Hartley 2's motion will also carry it across a field of view featuring the famous double star cluster in Perseus. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Credit: Chris Cook Explanation: This October, Mars has become a bright, yellowish star in planet Earth's sky as it approaches oppositon , the period when Mars and Earth pass close as they orbit the Sun. ... For example, this series of sharp Mars images follows the development of a dust storm as the planet rotates from right to left. ... Publications with keywords: Mars - dust storm . Publications with words: Mars - dust storm . ... Victoria Crater on Mars . ... Inside Victoria Crater on Mars . ...

... Each day we feature a different image or photograph of our fascinating universe, along with a brief explanation written by a professional astronomer. October 17, 1995 . Galaxy Dwingeloo 1 Emerges . ... Explanation: If you look closely at the center of the above photograph, you will see a spiral galaxy behind the field of stars. ... In fact, all the individually discernible stars in the above photograph are in our Galaxy. ... About APOD | ... NASA Technical Rep.: ...

... Home Education Classes AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... MRO Support Facility . Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Current telescope status . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Meetings . ...

... Planets . ... Earth Satellites . ... Looking in the direction of the constellation Cygnus the Swan and launched by NASA in 2009 is the Kepler Space Observatory.Many previous missions searching for exoplanets mainly detected large giant planets, like large hot Jupiters (it is easier to detect larger planets).However KeplerтАЩs main objective is to search for much smaller planets located in a habitable zone which is not too close nor too far from their star; planets which may be just like our Earth. ...

General Information . ... The conference is organized by the Sternberg Astronomical Institute (SAI) of Moscow University and the IAU Working group "Site-testing Instruments" . ... Use of site data in telescope operation and adaptive optics. ... Recent conferences on this subject (2007, 2008) demonstrated great interest of the community, hence the need for a new meeting. ... Unlike previous recent conferences, this meeting will cover all aspects of site monitoring for optical/IR astronomy. ...