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. ...

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• Astronomy Plus CCD Images of Galaxies
• The Galaxy Gallery: Messier Objects
• Galaxy Gallery Page III

... But do GRBs occur in galaxies or out alone in deep space? This picture taken with the Hubble Space Telescope of the field surrounding GRB 970228 might provide a clue. Antares . ... Antares is a huge star. ... This Hubble Space Telescope image of a group of faint galaxies "far, far away" is a snap shot of the Universe when it was young. ... The colors in this beautiful Hubble Space Telescope composite image of the cluster reveal different populations of stars. ... APOD is Two Years Old Today . ...

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... 2000 February 1 . Abell 2218: A Galaxy Cluster Lens . ... WFPC2 , HST , NASA . ... Almost all of the bright objects in this recently released Hubble Space Telescope image are galaxies in the cluster known as Abell 2218. The cluster is so massive and so compact that its gravity bends and focuses the light from galaxies that lie behind it. ... The cluster of galaxies Abell 2218 is itself about three billion light-years away in the northern constellation Draco . ... About APOD | ...

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• APOD: 2001 November 3 - Bright Stars, Dim Galaxy
• APOD: 2001 October 7 - Abell 2218: A Galaxy Cluster Lens
• APOD: 2004 February 17 - Galaxy Cluster Lenses Farthest Known Galaxy

... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...

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• Hubble sees a galaxy festooned with stellar nurseries | Astronomy.com
• Why can the Hubble Space Telescope see distant galaxies but not exoplanets? |
• Hubble observes a dwarf galaxy with a bright nebula | Astronomy.com

... Our Galaxy . ... Stars . ... Space Flight . ... NGC 2841: a spiral galaxy some 46 million light years away. ... It is especially hard to explain this process of star birth in some spiral galaxies. ... Targets include both star clusters and galaxies, and star formation rates seen range from the starburst galaxy M82 (the Cigar Galaxy) which is creating about ten new stars in its core alone every year to the much less fecund star producer NGC 2841. ... Tweets that mention Baby stars of NGC 2841 | ...

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• Our Galaxy | Astronotes - Part 5
• Hubble shows us a spectacular star cluster | Astronotes
• HST | Astronotes - Part 4

... 1995, Cycle 5, GO-5847 , PI, 9 orbits. The nuclear disk in the E4 radio galaxy NGC 7052: evidence for a central black hole? ... 1996/97, Cycle 6, GO-6537 , CoI, 8 orbits. ... Nuclear kinematics of the dense globular cluster M15 . ... A Census of Nuclear Star Clusters in Late-Type Spiral Galaxies . ... A Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: II - Spectroscopy and Stellar Populations . ... The Ages of Nuclear Star Clusters in Early-type Spiral Galaxies . ...

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• Research Interests
• Gregory F Snyder
• HST Press Releases

... By means of deep optical images obtained at the Special Astrophysical Observatory 6-m telescope it was discovered that some Seyfert galaxies that were earlier considered to be non-interacting objects displayed signatures of elongated tidal envelopes belonging to satellite debris. ... Our results suggest that statistic studies based on popular imaging surveys (for example SDSS) can lead to an underestimation of the fraction of minor mergers among galaxies with active nuclei (AGN). ...

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• Discovery of an isolated dwarf spheroidal galaxy neighboring the Local Group
• important_en
• A unique isolated dwarf spheroidal galaxy KKR25

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

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• IAU Commission #34 (Interstellar Matter)
• RSAA Annual Report 1998
• THE AUSTRALIAN NATIONAL UNIVERSITY

... STScI-PRC00-25 A DYING STAR IN GLOBULAR CLUSTER M15 The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope's Wide Field Planetary Camera 2 (WFPC2). ... Known as Kuestner 648, this was the first planetary nebula to be identified in a globular cluster. ... At the present time, the most massive stars remaining in M15 have about 80 percent of the mass of our Sun, a fact that makes the existence of a planetary nebula like K 648 something of a mystery. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/0030y.txt
• APOD: December 6, 1999 - M83: The Southern Pinwheel Galaxy from VLT
• Hubble Reveals Stellar Fireworks Accompanying Galaxy Collision PRC97-34a

... From SINGS (Spitzer Infrared Nearby Galaxies Survey): Isn?t it a beautiful Hubble tuning fork? ... Tags: Classification , clustering , factor analysis , Hubble , multivariate analysis , principle component analysis , SING , Spitzer , tuning fork . Category: Algorithms , Astro , Cross-Cultural , Data Processing , Galaxies , Jargon , Methods , Objects , Stars , Stat | ... Tags: CGRO , Chandra , Compton , CXO , Fermi , GLAST , HST , Hubble , observatory , UChicago , University of Chicago . ...

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• The AstroStat Slog lensing
• The AstroStat Slog GRB
• The AstroStat Slog tuning fork

... Ultra-compact dwarf galaxies (UCDs): . ... UCDs are characterised by old stellar populations, are larger, brighter and more massive than the biggest Milky Way globular clusters (GCs), but at the same time significantly more compact than typical dwarf galaxies of comparable luminosity. ... UCDs are remnant nuclei of tidally stripped dwarf galaxies ( Bassino et al. ... UCDs are genuine compact dwarf galaxies formed in the smallest peaks of primordial dark matter fluctuations ( Drinkwater et al. ...

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• The Unexpected Past of a Dwarf Galaxy | ESO
• Pulsating Star Mystery Solved | ESO
• Visible light view of a distant galaxy cluster discovered in the XXL survey

In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...

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• ASP: NGC Images on the Net
• ASP: Beacons in the Gloom
• ASP: Taking a Grand Virtual Voyage in the Milky Way

Supernova 2002fk in NGC 1309 . This page is devoted to information on Supernova 2002fk in NGC 1309 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. ... 2002/09/19.848 . ... JM Llapasset image . ... 13.0 . ... Josep M. Bosch . ... Josep M. Bosch image . ... vsnet-campaign-sn 476 ] SN 2002fk in NGC 1309 . ...

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• Supernova 1994D in NGC 4526
• Supernova 2000dk in NGC 382
• Supernova 1999gi in NGC 3184

... NGC 6221 . NGC 6215 . NGC 6221 is a barred spiral galaxy which is interacting with its brightest neighbour, NGC 6215, and possibly also with two newly discovered low-surface brightness galaxies (see Figure). The galaxy group lies only 10 degrees below the Galactic plane which explains the rather crowded field in the optical. ... Not much is known about NGC 6215, which is classified as a non-barred spiral galaxy of type SAS5 (RC3). ...

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• NGC 6221
• ATNF Daily Astronomy Picture
• Galaxy Lunch

Next: Observations and data reduction Up: HS 0822+3542 - a Previous: HS 0822+3542 - a . ... I Zw 18, a BCG with the lowest known oxygen abundance among the galaxies (O/H 1/50 (O/H) , Searle & Sargent [ 1972 ]; Izotov & Thuan [ 1999 ]), has been suggested as a candidate to be a truly-local young galaxy, experiencing its first short SF episode. ... 1998 ]). ... In this paper we describe the data obtained for the third most metal-deficient galaxy, HS 0822+3542 with O/H = 1/36 (O/H) . ... 0822+3542 1 . ...

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• A 20 cm VLA survey of Abell clusters of galaxies
• Clusters of Galaxies
• New nearby very metal-deficient blue compact galaxies

... A2043 Date Received: 2005-Jan-31 15:38:05 Technical Page Proposal Type: General Category : Sub- Category : Observation Category : Total Time Requested: Prop osal Title: ABSTRACT: Short Astronomy Spectroscopy Extragalactic 3 Hours H I 21 cm Search for a Ly alpha Absorbing Galaxy We request observing time on the Arecib o Radio Telescop e to lo ok for the HI emission sp ectrum of a nearby lyman- alpha -dense ... Part of the observing run. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/StocketagA2043tp.ps
• New Results Confirm Dark Galaxy Existence
• ALFALFA Dark Cloud

... Session 1 - Stars, star formation, stellar populations and planets . 9.20 10.00 . ... HST Spectroscopy of the Hottest White Dwarfs . ... Coffee break . ... Lunch break . ... A (long) look at neutron stars with HST . ... Session 2 - Nearby galaxies, bulges, spheroids, galaxy formation . ... New HST/ACS Insights into the Evolution of Star-Forming Dwarf Galaxies with Extreme Properties of Cosmological Relevance . ... Deriving properties of Lyman-break galaxies at z~3-5 using HST/VLT/Spitzer data . ...

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... All previous such superstars have been found along with many companion stars in the centres of crowded star clusters. The star is known as VFTS 682 from the VLT-FLAMES Tarantula Survey catalogue of the European Southern Observatory's Very Large Telescope (VLT) located at Paranal in Chile by means of the attached FLAMES instrument. ... Although VFTS 682 seems to be alone now it is not very far away from a very rich star cluster known as RMC 136 that contains several similar superstars. ...

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• Human Orrery
• Evolution Of Galaxies
• Astronomy Today and the Role Played by the Hubble Space Telescope: Wednesday 17

ATMoB Awards Program - Messier Marathon Worksheet Observer: Date: Instrument(s) Used: Location: Messier Observing Catalog/Worksheet Observing Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Messier Number M 77 M 74 M 33 M 31 M 32 M110 M 52 M103 M 76 M 34 M 45 M 79 M 42 M 43 M 78 M1 M 35 M 37 M 36 M 38 M 41 M 93 M 47 M 46 M 50 ...

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• Amateur Telescope Makers of Boston ATMoB Observing Awards Program

... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

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