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
• Astro-2 and the UIT Experiment

... all new HIPASS galaxies (Table 2.4) that have no yet been observed with the ATCA . ... Table : Remaining ATCA target list (sorted by RA) -------------------------------------------------------------------------------- Name RA DEC ID Max mom0 mom1 mom2 w50 w20 -------------------------------------------------------------------------------- ZSS 13 07:33:16 -28:41:07 new -HIZSS013 0.151 9.2 2077.6 21.6 52.8 144.6 HIP 358 07:44:56 -41:47:02 ESO311-G006/7 0.262 30.9 1049.4 34.5 127.1 149.5 ...

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• The Brightest Galaxies from HIPASS
• Finding the Bivariate Brightness Distribution of galaxies from an HI selected
• The ``HIPASS Bright Galaxy Catalog'' (version-4)

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

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• Culgoora catalog
• Results and Discussion
• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies

The spherical aberration affecting the HST primary mirror (Burrows et al. 1992) can seriously alter the core brightness profile of elliptical galaxies. ... In this paper we test the performance of deconvolution in recovering the original surface brightness profile in the case of elliptical galaxies observed with the HST Planetary Camera (PC). ...

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• Selected telescopes I have observed with
• Surface Brightness Parameters from Deconvolved PC Images of Elliptical Galaxies
• ST ScI Preprint #1396

... Abstract: We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. ... As a general result, clumpy models are less opaque than the corresponding homogeneous models. ... 0.00 0.15 0.50 0.1 0.5 1.0 2.0 5.0 10.0 0.25 X . ... We have also produced several homogeneous models, to compare to the clumpy models. ... Homogeneous and clumpy models with the same tauV have the same dust mass. ...

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• Cannibal Stars Cause Giant Explosions in Fornax Cluster Galaxy (ESO Press
• APOD: October 16, 1995 - Starburst Galaxy M94
• Ionized outflows in z~2.4 quasar host galaxies

... 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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Arecibo Galaxy Environment Survey (AGES) The M74 group is a gas-rich galaxy group located at roughly 10 Mpc and is similar in makeup to the Local Group. M74 dominates the surrounding region and is accompanied by several dwarf galaxies, some of which are star-forming. ... We have decided upon a drift mapping approach to scan the entire region. We have defined 5 constant declination scans 5 in length, separated by approximately one full ALFA footprint. ... START TIME (AST) . END TIME (AST) . ...

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• Example Observing Projects
• I-GALFA Reveals Dynamic Events in Our Galaxy
• AGES - the Arecibo Galaxy Environment Survey

... 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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• Measurement of the dark halo shape in polar ring galaxies
• Detection of unique bright radio flare of X-ray binary
• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology

... DIGITAL EDITIONS . ... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Bright galaxies . ... Get instant access to subscriber content on Astronomy...

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• Bright planets meet at dusk | Astronomy.com
• Understanding brightness | Astronomy.com
• Bright new supernova blows up in the Cigar Galaxy (M82) | Astronomy.com

Visual Discovery of SN 1996X in NGC 5061. ... It was not until the IAU Circular was issued that we found out there had been an independent amateur photographic discovery of this supernova by Kesao Takamizawa of Japan. ... Earlier in the week, 660 galaxies had been observed during two nights we had use of the 40 inch telescope at Siding Spring. ... The supernova in NGC 5061 was first seen with the smaller telescope about 10pm local time on Friday, April 12 (April 12.5 UT). ...

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• APOD: 2002 June 20 - Bright Galaxy M81
• APOD: 2012 January 10 - Bright Star Regulus near the Leo I Dwarf Galaxy
• Use of Charts.

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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• Supernova in the Cigar Galaxy | Astronotes
• Leonid meteors 2011 | Astronotes
• WLM Galaxy: a Cosmic Living Fossil | Astronotes

... Data of obs. ... Reduced (Paper I) . NGC 0023 . VIII.1998 . ... NGC 0132 . ... Reduced . NGC 0157 . ... NGC 0615 . ... NGC 0753 . ... NGC 0945 . ... Bad data (clouds); . NGC 0972 . ... II.1998 . ... NGC 1024 . ... NGC 1058 . ... NGC 1073 . ... NGC 1084 . ... NGC 1134 . ... NGC 1637 . ... NGC 2276 . ... NGC 2608 . ... NGC 2964 . ... NGC 3184 . ... Bad data (low S/N) . NGC 3338 . ... Bad data (IFP failure) . NGC 3344 . ... Reduced (bad data) . ... Back to Project Vortex. ...

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• SCORPIO: IFP Gallery
• Fabry-Perot Interferometer: Gallery Old
• INASAN preprint: A method of the reconstruction of 3D velocity field of gas in

Astronomy Picture of the Day . ... 16.10.1995 . ... Credit: NASA , Ultraviolet Imaging Telescope Explanation: The spiral galaxy M94 is somewhat unusual in that it shows a great ring of bright young stars particularly apparent when observed in ultraviolet light, as shown above. Such a high abundance of these young blue stars may cause a galaxy to be designated a starburst galaxy. ... October 1995 . ... 1995 1996 . ... NGC 4314: A Nuclear Starburst Ring . ... Starburst Ring in Galaxy NGC 1317 . ...

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• Астронет > Starburst Galaxy M94
• XWare > APOD

... Cross-shaped galaxy ZGC 2315+03 (Fig.1) has been described by Zwicky (1971) as ``post-eruptive or the result of the crossing of a compact galaxy through an edge-on spiral'' . This object was included in the Polar-Ring Catalog (C-71) by Whitmore et al. (1990) as a possible candidate for Polar-Ring Galaxies (PRG). ... One of them is galaxy 'disk' and the other is 'polar-ring'. ... The facts against the polar-ring nature of ZGC 2315+03 can be summarized as follows: . ...

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• The Stellar Content and Distance to the Nearby Blue Compact Dwarf Galaxy
• Polar-Ring Galaxies
• Modelling the Milky Way in the Era of Gaia - JD5 Rationale

... Previous: Substepping and its Application to HST Imaging . ... This is a preliminary report on an application of the co-addition technique based upon the Richardson-Lucy algorithm. The combination of high signal-to-noise ground-based images obtained with the ESO NTT using SUSI with high angular resolution HST FOC f/96 images gives new insights on the properties of galaxy cores and their potential time variability. Cores of galaxies are one of the main thrusts of present extragalactic research. ...

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• GIM2D: An IRAF package for the Quantitative Morphology Analysis of Distant
• Mapping the Jagiellonian Field of Galaxies
• Asteroseismology-Observing for a SONG

This page is devoted to information on Supernova 1999br in NGC 4900 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. ... Note that there is a very bright foreground star (mag about 11.3) located near the position of Supernova 1999br . ... Mag . ... vsnet-chat 1771 ] Host galaxy of SN1999br . ... from [ vsnet-alert 2870 ] SN 1999br in NGC 4900 . ... The host galaxy NGC 4900 has a rather peculiar appearance. ...

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• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE
• Supernova 1999ee and 1999ex in IC 5179
• Supernova 1999bg in IC 785

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

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... Here are some tips on how to get the best guiding out of our current system. ... NA2 Guider Tips . ... Optical double stars, late-type galaxies, and bipolar PNs may pose a problem for guiding, as will objects where you desire to observe a position away from the bright center (e.g., SNs near bright galaxies). ... Field Star is good if your object is too faint or asymmetrical for Boresight guiding, or if you need the slit to be off-center. ... Use Field Star guiding almost always. ...

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... It is 1st August, and you are hoping to observe a number of bright galaxies from a catalogue. ... You used the normal Vega magnitude scale. You now want to compare your B-K colour against the published colours of another, supposedly similar star you found in the literature. Your colour: B-K = 3.43 Literature colour: B-K = 3.41 Unfortunately, when you read the small-print in the literature paper, you found that the published colour used AB-magnitudes, not Vega magnitudes. ...

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• COALA - Sharon Rapoport
• GSAOI Disk Galaxies Science Page
• Emma Kirby - Science

Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass of our galaxy. ...

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• V International Astronomy Olympiad, Problems to solve (in English)