In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

... NGC 3293: A Bright Young Open Cluster . ... Hot Blue stars shine brightly in this beautiful, recently formed galactic or "open" star cluster. Open cluster NGC 3293 is located in the constellation Carina, lies at a distance of about 8000 light years, and has a particularly high abundance of these young bright stars. ... A Close-Up of the Lagoon's Hourglass . ... A Close-Up of the Lagoon Nebula . ... Welcome to Planet Earth . ... Welcome to Planet Earth, the third planet from a star named the Sun. ...

... February 26, 1996 . Fireball! ... Explanation: On rare but spectacular occasions, fireballs , meteors brighter than the brightest stars, flash through the heavens - sometimes making audible sounds and occasionally surviving to strike the Earth's surface . The path of one such fireball , recorded last year in January skies over Hannover Germany is shown above , the brilliant meteor easily outshining the stars of the constellation Orion (visible at the far right). ... About APOD | ...

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . Planets . ... Monthly Sky Notes . ... February . ... The ringed planet will be quite bright, but unlike Jupiter it will not be the brightest point of light in the sky, this accolade will return to Sirius which is the brightest star in our night sky in the constellation of Canis Major. ... Seven days later on February 18, the Moon will be in its full Moon phase. ... Tweets that mention Wonders of the February Night Sky | ... Astronotes . ...

... The number density of spirals as a function of surface brightness. ... Relevance of low surface brightness galaxies to faint galaxy counts. EVOLUTION - Relevance of low surface brightness galaxies to faint galaxy morphology. Gas content and star formation histories of spiral galaxies as a function of luminosity and surface brightness. ... DARK MATTER - Dark matter content as a function of luminosity and surface brightness. Requirements imposed on dark matter theories. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 9, 1999 . A Supernova Star-Field . Credit: Hubble Heritage Team ( AURA / STScI / NASA ) . Explanation: Bright stars don't last forever. ... The above picture is a composite of recent images taken over several years. The explosion originated from a bright massive star that ran out of nuclear fuel . ... About APOD > . ...

... Sun images . ... Sun flares . ... Active areas . February : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: February 10, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... Life, the Universe and Everything - well, "The Universe" at least . ... The Irish Astronomical Association will hold its next lecture for IYA2009 on Wednesday 4 February , at 7.30 p.m., in the Bell Lecture Theatre, Physics Building, Queen's University Belfast. Dr. Fiona McGroarty (QUB) will give a public lecture entitled " Star Formation: How well do we understand it? ... Tuesday, 3 February 2009 18:41 . International Year of Astronomy, Ireland National Node . ...

Compilation of Surface Brightness . HyperLeda home | Documentation | Search by name | ... Search an object in the surface brightness catalogue . The surface brightness in magnitudes per square arcsec (mag arcsec -2 ) . ... Surface brightness at effective radius . ... Effective mean surface brightness within the effective radius (equivalent radius in which half the total flux is emitted). ... Quality Flag The quality flag has the following meaning: . ... regular measurement . ...

... Home Education Classes AAA Spring Astronomy Class: The Physics of Astronomy тАУ February ? March 2016 . ... Classes . ... AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

13th of February 2015 . The Atlas3D view of massive galaxies with deep optical images . ... In a recent paper, Duc et al. (2015; including ATNF's Paolo Serra) present the result of a large observational campaign to study the faint outskirts of early-type galaxies as part of the Atlas3D project. These spectacular images reveal a large number of new features invisible in previous images, such as blue star-forming spiral arms, shells and a large diversity of tidal tails. ... today * ATNF | ...

... ESO Science Newsletter February 2016 . ... This newsletter is a summary of recent ESO Science Announcement items. ... A new Band 9 receiver was installed inside the Swedish ESO PI receiver for Apex ( SEPIA ) at APEX in early February. ... After on-sky commissioning in late March, Science Verification (SV) observations are planned. ... The Call for Proposals for SEPIA Band 9 SV can be found here and the deadline is 12:00 CET, Friday 11 March 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

Ganymede . ... Ganymede Statistics . ... Hubble Finds Ozone on Jupiter's Moon Ganymede . ... Like Callisto , Ganymede is most likely composed of a rocky core with a water/ice mantle and a crust of rock and ice. ... Ganymede's mantle is most likely composed of ice and silicates, and its crust is probably a thick layer of water ice. ... Ganymede's surface is rich in water ice and Voyager and Galileo images show features which are evidence of geological and tectonic disruption of the surface in the past. ...

. The Sun at 1:50 a.m. February 15, 2011 using composite data of the SunтАЩs surface from SDO/HMI and the SunтАЩs million degree corona from SDO/AIA. The cutout region shows (bottom) the five rotating sunspots of the active region (AR 11158), and (top) the bright release of light from the X class flare. Image produced by D. Brown (UCLan). Data courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Brightest Northern Hemisphere Galaxy . Forum List | ... Post Message | ... In which constellation would I find the brightest galaxy in the northern hemisphere? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... A dynamical system is an action of the infinite cyclic group. Group action study is€аimportant for€аdifferent areas of€аdynamics and geometry. The topics of€аthe conference include: . ... Diophantine approximations and homogeneous flows, e.t.c. We plan a€аminicours by€аD.€аCalegari about the solution of€аthe Ahlfors' measure conjecture for limit sets of€аKleinian groups. ... In 5тАУ7€аminutes you'll see a€аchurch on€аyour right€атАФ turn right to€аBolshoy Vlasyevsky street after that. ...

... Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001 XMM EPIC MOS MOS-2 pixels. ... Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001 The defect seem to be most quick CCDs 1, 2 XMM EPIC MOS MOS-1 pixels. ... Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001 XMM EPIC MOS New Defects in rev. 108 flare. XMM EPIC MOS Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001 New Defects in rev. 169 flare. ... Paul Bennie pbe@star.le.ac.uk Friday, 16 February 2001 XMM EPIC MOS ...

... These reports are submitted for engineering work accomplished during bright time and maintenance shutdowns. ... 010531: May 2001 Bright Time Engineering Work Summary . ... 020102: January 2002 Bright Time Engineering Work Summary . 020202: February 2002 Bright Time Engineering Work Summary . ... 030101: January 2003 Bright Time Engineering Work Summary . ... 040101: January 2004 Bright Time Engineering Work Summary . ... 050101: January 2005 Bright Time Engineering Work Summary . ...

... The history of star formation was successfully analyzed for the first time based on the spectra of the stellar population of dwarf galaxies of low surface brightness outside the Local Group. We have investigated the stellar population of two dwarf spheroidal galaxies KDG61 and KDG64 in the central part of a close group of galaxies M81. ... These galaxies are dominated by the old stellar population (12-14 billion years) of low metallicity ([Fe/H] ~ -1.5). ... KDG61 . ... KDG64 ...

... Printable versions of this program are available in PDF and plain text . ... Chair: W. Freudling . ... 11:25 HI gas in galaxies from z =0 to z =0.2 PDF . ... Evolution across cosmic time . ... 09:20 Star formation in HI selected galaxies PDF . ... 15:10 Interaction Driven Galaxy Evolution: The Fate of Gas PDF . ... 09:20 HI, H2 and Galaxy Evolution . ... 10:20 Neutral Hydrogen and Star Formation in the Coma Abell 1367 supercluster PDF . ... 14:30 HI and galaxy evolution: what we need to know PDF . ...