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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• The Galaxy Gallery: Messier Objects

Astronomy Picture of the Day . ... The Hydra Cluster of Galaxies . ... White Oval Clouds on Jupiter . ... What are those white ovals all over Jupiter? ... The above pictured white ovals are located near the Great Red Spot, and have persisted on Jupiter since the 1930s. The Great Red Spot has persisted for at least 300 years. Jupiter's Ring Halo . ... Why do many galaxies appear as spirals? ... The above pictures taken by Mars Pathfinder highlight how clouds vary during the end of a Martian day. ...

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... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Jupiter . ... Observing . ... Sky this Month . ... Opportunityт??s devilish view from on high . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... What causes the highly differentiated color banding on Jupiter? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• What can astronomers tell us about the different colors on the surface of
• Bright planets meet at dusk | Astronomy.com
• Bright galaxies | Astronomy.com

ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

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• Hubble Reveals Stellar Fireworks Accompanying Galaxy Collision PRC97-34a

... 2000 December 8 . Abell 1795: A Galaxy Cluster's Cooling Flow . ... Astronomers have realized since the early 1970s that the larger swarms, immense clusters of galaxies millions of light-years across, are immersed within tenuous clouds of hot gas which glow strongly in x-rays. ... This Chandra Observatory x-ray image reveals a striking cooling flow in the central regions of the galaxy cluster cataloged as Abell 1795. ... About APOD | ...

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• APOD Index - Galaxies: Clusters of Galaxies
• APOD: 2001 April 16 - The Hydra Cluster of Galaxies
• APOD: November 13, 1995 - Virgo Cluster Galaxies

HUBBLE SPACE TELESCOPE DAILY REPORT #1470 PERIOD COVERED: 0000Z (UTC) 09/06/95 - 0000Z (UTC) 09/07/95 Daily Status Report as of 250/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed WF/PC-2 5991 (The Fundamental Plane of Early-Type Galaxies in X-Ray Clusters at Z=0.0) The WF/PC-2 was used to make observations of X-Ray galactic cluster GAL-CLUS-0 in order to measure the scale heights, surface brightness profile, color distributions and morphology of the cluster. ...

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• Simulation of a Distant Cluster of Normal Galaxies
• Target Category and Target Description [Description]
• Surface Brightness Parameters from Deconvolved PC Images of Elliptical Galaxies

The 1000 Brightest HIPASS Galaxies: HI Properties . ... These belong to 91 new sources for which no optical or infrared counterparts have previously been cataloged, an additional 51 galaxies for which no redshifts were previously known, and 16 galaxies for which the cataloged optical velocities disagree. ... J0001-15, ( ps eps , jpg ) J0035-25, ( ps eps , jpg ) J0105-06, ( ps eps , jpg ) J0221-20, ( ps eps , jpg ) . ... The 1000 Brightest HIPASS Galaxies: Newly Cataloged Galaxies . ...

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• HIPASS Bright Galaxy Catalog
• The 1000 Brightest HIPASS Galaxies
• Galaxy Lunch

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

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• Our Galaxy | Astronotes - Part 5
• Young Stars in the Small Magellanic Cloud | Astronotes
• stars | Astronotes - Part 6

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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• The Local Sphere of Influence Survey
• Philip Lah's Research
• GSAOI Super Star Clusters Science Page

This animation shows a galaxy cluster with two mass concentrations (the pink shading indicates the projected mass density) lensing a background field of faint blue galaxies. ... Inside the Einstein ring radius one has radial arcs, and right in the center of the cluster there are demagnified images. The highest magnifications occur at the Einstein ring radius, giving the large tangential arcs. ... Abell 2218 and CL2244-02 are clusters with tangential arcs. ... Tutorial : Part 1 | Part 2 | ...

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• Clusters of Galaxies
• A 20 cm VLA survey of Abell clusters of galaxies
• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies

NGC 1427A is the brightest irregular galaxy in the Fornax Cluster . ... NGC 1427A is comparable in size, luminosity and color to the LMC . Both galaxies show striking signs of recent star formation. ... Possible interaction partners could be the central Fornax galaxies NGC 1404 or NGC 1399 and its large extended cD halo. ... See our preprint `` NGC 1427A - an LMC type galaxy in the Fornax Cluster'' , 1997, A 327, 562 (as a gzipped .ps file [528k], please add ".gz" after downloading). ...

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• Bright Galaxies in the Virgo Cluster
• Brightness "Dips" Caused by Two Transiting Exoplanets | ESO
• The Thousand-Ruby Galaxy | ESO

... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...

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• ASP: Sharing the Universe
• ASP: Big Clusters, Tiny Galaxies
• ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way

... Archives . ... ArXiv] SVM and galaxy morphological classification, Sept. 10, 2007 . ... On the Metallicity-Color Relations and Bimodal Color Distributions in Extragalactic Globular Cluster Systems by M. Cantiello and J. P. Blakeslee . Many observations on globular cluster systems (GCS) show bimodal distributions in color and metallicity space. ... Based on their simulation study, (V-H) and (V-K) are confirmed to be good colors for revealing unbiased bimodal metallicity distributions in GCS. ...

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• The Chandra Multiwavelength Project (ChaMP)
• The galaxy M100
• The AstroStat Slog Blog Archive Classification and Clustering

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

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• Extragalactic Astronomy

... I. Mean Surface Brightnesses and Integral Color Indices for Bars Gusev A.S. ================================================================================ Abstract: UBVRIJHK surface brightnesses and color indices of bars of galaxies are determined using surface photometry data for 100 barred galaxies (table1.dat). ... J0 Mean surface J0 brightness 46 A1 --- CI- CI sign 47 -50 F1.2 magn/sq.arcsec. U-B)0 (U-B)0 color index 52 -55 F1.2 magn/sq.arcsec. ...

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• Maidanak Lab page
• Scientific activity
• Yuri Nicolaevich Efremov - My Home Page

Proposal Identi cation No.: A1511 Date Received: 2001-Feb-01 17:39:36 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Extragalactic Total Time Requested: 20 Hours Proposal Title: Low Surface Brightness Galaxies in X-ray Emitting Clusters ABSTRACT: Successful surveys for the detection of low surface brightness disk galaxies have been primarily undertaken in spiral rich clusters with little or no X-ray emission. ...

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• VIRGOHI 21
• New Results Confirm Dark Galaxy Existence
• I-GALFA Reveals Dynamic Events in Our Galaxy

... 1994: . Deep CCD images of the bright gamma-ray bursts GRB790418 and GRB790613 localization regions were obtained for the first time. In both cases, a faint blue star-like object (V = 24.5 m , BV m ) was detected within the region of localization of gamma-ray bursts. ... Based on sixty daily instantaneous spectra of the object SS433, obtained on the RATAN-600 in April-May 1994, we traced its variability in four very powerful flares at five frequencies. ... Archive . ...

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• important_en
• Measurement of the dark halo shape in polar ring galaxies
• Galaxy sector, archive 2000

Supernova 2002bu in NGC 4242 . This page is devoted to information on Supernova 2002bu in NGC 4242 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. This is a type IIn supernova found in a galaxy which is in Canes Venatici. ... Mag . ... 2002/03/28.26 . ... A Leroy image . ... SUPERNOVA 2002bu IN NGC 4242 . ...

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• Supernova 1999gi in NGC 3184
• Supernova 1994D in NGC 4526
• Nove in M31 2, 1998

... Future seminars . P a s t seminars . Seminar council . Stability of cold fronts in clusters of galaxies " . E. Churazov (IKI, MPA) . ... One of the insteresting results of Chandra and XMM-Newton observatories is the discovery of sharp structures in the X-ray surface brightness of galaxy clusters. These structures (a.k.a. cold fronts) are likely associated with the contacted discontinuities formed when a hot gas flows over a colder gravitationally bound gas cloud. ...

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• (S-7a) The Black Hole at the Center of our Galaxy

... About ATMoB . ... The Observing Committee is starting an Observing Awards Program to promote observing among the membership of the Amateur Telescope Makers of Boston. ... Participant must be a current member of the Amateur Telescope Makers of Boston . ... To qualify for your Observing Award Certificate, turn in your worksheet and drawings to an ATMoB Observing Committee member or observing@atmob.org . ... This Excel sheet has useful macros. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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