Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Our Galaxy . ... Weird and Fun . ... It came from another galaxy: This artistтАЩs impression shows HIP 13044 b, an exoplanet orbiting a star that entered our galaxy from beyond. ... HIP 13044 is one of tens of millions of stars in the тАЬHelmi streamтАЭ, stars that belonged to a dwarf galaxy consumed by our own Milky Way galaxy, some six to nine billion years ago. ... Tweets that mention ESO finds weird doomed planet from another galaxy | ...

... Another piece of asteroid discovery news, from Terry Moseley: "Dave Grennan from Dublin has just discovered a Main Belt asteroid from his observatory in Raheny. ... Dave's discovery comes just after Dave McDonald's find of 2008 TM9 a few weeks ago. ... This is only the third asteroid ever discovered in Ireland. ... This has been an amazing year for astronomy in Ireland, and is a superb lead-in to IYA 2009!" ... International Year of Astronomy, Ireland National Node . ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... 2000 March 30 . Saturn-Sized Worlds Discovered . ... Explanation: The last decade saw the profound discovery of many worlds beyond our solar system, but none analogs of our home planet Earth . ... With at least 70 percent the mass of Saturn, 79 Ceti's planet orbits on average 32.5 million miles from the star compared to 93 million miles for the Earth-Sun distance . ... HD46375's planet is at least 80 percent Saturn's mass, orbiting only 3.8 million miles from its parent star. ... About APOD | ...

Image credit: Michael Nolan, Arecibo Observatory. These radar images of near-Earth asteroid 2001 SN263 were obtained on 2008 Feb 12 and 13. ... Image from Feb 12 . ... First near-Earth triple asteroid discovered by Arecibo Observatory . ... was discovered this week by astronomers at the sensitive radar telescope at Cornell University?s Arecibo Observatory in Puerto Rico. ... For example, Arecibo has discovered more than half of the near-Earth binary asteroid systems discovered since 1999. ...

... Saturn-Sized Worlds Discovered . ... Credit: Greg Bacon ( STScI ), NASA Explanation: The last decade saw the profound discovery of many worlds beyond our solar system, but none analogs of our home planet Earth . Exploiting precise observational techniques, astronomers inferred the presence of well over two dozen extrasolar planets , most nearly as massive as gas giant Jupiter or more, in close orbits around sun-like stars. ... NASA Web Site Statements, Warnings, and Disclaimers . ...