... Star Atlas . ... solar system . ... stars . ... Observe the Solar System . ... What factors determine if a massive star (say, 100 solar masses) forms instead of a Sun-like star? ... Stars of all masses form from dense clumps within exceptionally cold molecular clouds. ... Massive stars tend to form at the centers of high-mass reservoirs of gas. Get instant access to subscriber content on Astronomy.com! ... A gamma-ray burst hints that LIGO's double black holes started as one massive star . ...

... Contact . ... Neutron stars and black holes aren't all they've been thought to be. In fact, neutron stars can be considerably more massive than previously believed, and it is more difficult to form black holes, according to new research developed by using the Arecibo Observatory in Arecibo, Puerto Rico. read more .. Contributors that wish to publish their papers in AORSS must send an HTML version of their article to Alice Hine at [ ahine@naic.edu ] . ...

... The nebula cataloged as NGC 604 is a giant star forming region, 1500 light years across, in the nearby spiral galaxy, M33. ... Galileo Views Io Eruption . ... Io's surface is active. ... Details of the crazed cracks criss-crossing Europa's frozen surface are apparent in this mosaic of the Galileo spacecraft's latest images of Jupiter's ice-covered moon. ... Europa's Surface . ... Leo Triplet Spiral Galaxy M65 . ... Spiral galaxy M65 is a normal spiral galaxy not unlike our own Milky Way. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... August 16, 1996 . NGC 604: Giant Stellar Nursery in M33 . Credit: H. Yang ( UIUC ), J. Hester ( ASU ), NASA . Explanation: The nebula cataloged as NGC 604 is a giant star forming region, 1500 light years across, in the nearby spiral galaxy, M33 . ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

Заседание отдела астрометрии и службы времени состоится . 15 марта в 12.00 в конференц-зале ГАИШ . Повестка дня: . 1. Е.Н. Федосеев. Отчет о работе в 2006-2011 гг. в связи с переизбранием на должность старшего научного сотрудника. 2. Рекомендация к переизбранию Е.Н. Федосеева на должность старшего научного сотрудника. 3. Разное. Back

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Weekend Visits Form . ... ESO Acronyms . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... Catch a Star 2013 . ... This image shows an enlargement of a small area of the field in ESO Press Photo eso0030a (slightly above and to the right of the centre), centred on the position of a massive star in the process of being formed. ...

ATNF Home . About ATNF . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ...

This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. This is the famous Trifid Nebula, often photographed. It is a nice illustration of the combined effections of ionization and scattering caused by the large yield of blue and UV photons from newly formed massive stars.

... Bad Astronomy . ... A tidbit of news on the brown dwarf front came in this week. Regular readers may remember that brown dwarfs are objects that are intermediate in mass between a planet and a star . ... So this is even better evidence that brown dwarfs form like stars and not planets. Brown dwarfs may not turn out to be the 'missing link' between planets and stars the way some astronomers thought a few years ago, but they are providing clues on just how stars and planets do form. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...