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 . ...

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• HyperLEDA documentation: parameter: brief
• LEDA documentation: homogenisation
• HyperLEDA documentation: Photometry (a107)

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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... Home . ... Data . ... WFPC2 Home . ... Instrument . Instrument Home . ... An integrated Bright Object Tool (BOT) has replaced the old VTT-based RObust Bright Object Tool. ... The tool will check each exposure in a program for field (and prime) objects that are either health-and-safety concerns, or may impact the scientific value of the data. ... The new tool utilizes information in the proposal file, and also uses the APT and Aladin interfaces for its tabular and graphical display, respectively. ...

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• STIS Instrument Handbook
• Surface Brightness Parameters from Deconvolved PC Images of Elliptical Galaxies
• Photometric and Surface Brightness Measurements of Simulated HST Restored...

... Credit Copyright: Nicolюs Villegas Explanation: Large galaxies and faint nebulae highlight this deep image of the M81 Group of galaxies. ... Around the image many other galaxies from the M81 Group of galaxies can be seen, as well as a lucky satellite glint streaking across the image left. ... This whole galaxy menagerie is seen through the faint glow of an Integrated Flux Nebula , a little studied complex of diffuse gas and dust clouds in our Milky Way Galaxy . ... Galaxy Wars: M81 versus M82 . ...

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• XWare > APOD

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Finding the Bivariate Brightness Distribution of galaxies from an H I selected sample . ... A method is presented that will enable the bivariate luminosity/surface brightness distribution of galaxies to be determined from a relatively small H I selected sample. ... PICASSO - an automated galaxy finder . ...

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• A Search for Bright Kuiper Belt Objects
• X-Ray Microlensing of Bright Quasars
• Bright prospects: Comparing the H Survey with large-scale radio continuum

Sternberg Astronomical Institute, Moscow University, . Moscow, Russia . Supernovae make us brighter .. Search russian astronomical resources . Mirror of International Supernovae Network ( Original site ) . Catalogue of Supernovae Stars . HTTP access to SAI Catalogue of Supernovae Stars . SAI SN Light Curves Online . ... Sternberg Astronomical Institute ( in Russian ) . ... Astronet - Russian Astronomical Network . ... Russian Foundation for Basic Research . ...

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• Tsearch2 - full text search extension for PostgreSQL
• APOD: 2008 May 12 - The M81 Galaxy Group Through the Integrated Flux Nebula
• APOD: 2012 March 13 - The M81 Galaxy Group Through the Integrated Flux Nebula

... We report initial results of cross-identification of extragalactic objects from the NASA/IPAC database and Guide Star Catalog (GSC). ... The NASA/IPAC Extragalactic Database (NED) contains positions, extensive data, and 1,023,000 cross-identifications for over 592,000 extragalactic objects (galaxies, quasars, and radio sources). ... Catalogs and lists are being integrated into NED on a continuing basis, following a detailed cross-identification process. ... Final cross-identification results: . ...

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• ADASS 2002 Conference Proceedings
• Image Reconstruction with Few Strip-Integrated Projections: Enhancements by
• On-line Access to Very Large Catalogues

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

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• Bright Supernova - Archives
• Supernova 2002fk in NGC 1309
• Bright SN Menu

2014 May version . ... Green D. A., 2014 , Bulletin of the Astronomical Society of India, 42 , 47-58. ( .pdf , or arXiv.org:1409.0637 ) If you make use of the detailed version of the catalogue, then plaese also cite: . Green D. A., 2014, `A Catalogue of Galactic Supernova Remnants (2014 May version)' , Cavendish Laboratory, Cambridge, United Kingdom (available at "http://www.mrao.cam.ac.uk/surveys/snrs/" ). ... Copyright D. A. Green 2014. 25872nd access to this version of the catalogue. ...

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• G356.3-0.3
• G299.6-0.5
• G353.6-0.7

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Research Highlights 2014 . Research Highlights 2013 . Research Highlights 2012 . Research Highlights 2011 . Research Highlights 2010 . 2016/01/18 . Time-dependent atomic diffusion in magnetic ApBp stars . ... Magnetic flux supplement to coronal bright points . ... 2015/11/02 . ... Active region upflows. ... Cool transition region loops observed by the Interface Region Imaging Spectrograph . ...

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• Meteor showers at Mars
• Introduction
• INTRODUCTION

Astronotes Armagh Planetarium's Stellar Blog! ... Meteors and Meteorites . ... Stars . ... Monthly Sky Notes . ... This famous depiction of the Leonids was based on a first hand account of a meteor storm by a minister, Joseph Harvey Waggoner. ... In the autumn the Great Square of Pegasus is visible in the southern night sky. ... I hope this guide to the November night sky is helpful and have fun star sight-seeing! ... Tweets that mention The Leonid meteors: highlights of the November night sky | ...

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• Monthly Sky Notes | Astronotes - Part 7
• Vega | Astronotes - Part 2
• constellations | Astronotes - Part 7

Description and Specifications (html) ( pdf ) . System Block Diagram (pdf) . ... GALFA Spectrometer Setup, Operations, Basics Manual (pdf) . GALFA Diagnostic Software Overview . ... Polyphase Filter Bank . ... Design of Quadrature Downconverter Board (pdf) . Design of Low-Pass Filters (pdf) . Design of 16-Channel DAC/Gain Control Board (pdf) . ... Design of Digital Decimating FIR Filter (pdf) . ... Quadrature downconverter (August 9, 2004) . Spectrometer board (September 1, 2004) . ...

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• HISA Poster for the 33rd Annual Meeting of CASCA, May, 2002
• Pulsar Highlights - ALFA Finds Youngest Binary Pulsar Ever
• I-GALFA Reveals Dynamic Events in Our Galaxy

Definitions of Magnitudes and Surface Brightness 1 The magnitude system 1.1 Apparent magnitude Astronomers are stuck with the antiquated old system of magnitudes and so a clear explanation of what this system is and how it relates to more sensible units is important. ... 1.2 Absolute magnitude Absolute magnitude is a logarithmic luminosity scale. ... One usually goes by the round about process of referring to the absolute magnitude of the sun. ... Magnitudes and surface brightness 6/6 ...

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• GSAOI Bulk Motions Science Page
• Sky Brightness
• Bright, sunny day

... The ROSAT Bright Survey: II. Catalogue of all high-galactic latitude RASS sources with PSPC countrate CR > 0.2 s -1 . ... 1S We present a summary of an identification program of the more than 2000 X-ray sources detected during the ROSAT All-Sky Survey (Voges et al. 1999) at high galactic latitude, |b| > 30degr , with countrate above 0.2 s -1 . This program, termed the ROSAT Bright Survey RBS, is to more than 99.5% complete. ...

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• NEdit.org
• Introduction
• Experimetn COLD: Introduction

... Modifies the PSF map, by applying the effect of EPIC charge transfer smearing. This should be called BEFORE any pile-up correction (see 3.3.31 ) in order to ensure that the correct fraction of INPUT detected events are re-distributed. The routine consults the ModeParams files for a smearing fraction, and takes the integrated surface brightness in each CCD column, and reduces the brightness according to this fraction, then redistributes the smeared fraction evenly over the column. ...

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• Introduction
• SAS package documentation standards
• Analysis of extended sources or in the vicinity of moderately bright sources

Stellarium 0.12.3 . ... FileљStructure . ... varstar Struct Reference . QStringљ . ... Magnitude at maximum brightness. ... Magnitude flag code. ... First minimum magnitude or amplitude. ... Second minimum magnitude or amplitude. ... The photometric system for magnitudes. ... Definition at line 41 of file StarMgr.hpp . ... QString varstar::photosys . ... QString varstar::stype . ... QString varstar::vtype . ... The documentation for this struct was generated from the following file: . ...

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• Stellarium: BigStarCatalogExtension::SpecialZoneArray< Star > Class Template
• Stellarium: BigStarCatalogExtension::ZoneArray Class Reference
• Stellarium: Stellarium Developers Documentation

... Science . ... Science Users Information > Science Publications > Science Announcements > Final Data Release of zCOSMOS-bright Redshift Survey . ... Observing Facilities . ... Observing with ESO Telescopes . ... ESO HST Image Galleries . ... This final release of zCOSMOS-bright includes 20689 1-d spectra. The survey was split into two parts: the first, zCOSMOS-bright, which is the subject of this release, aimed to produce a redshift survey of about 20000 I -band selected galaxies at redshift z<1.2. ...

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• ESO - My data shows an extended, bright feature - what can this be?
• ESO - How can I run the pipeline when there are no bright objects in the
• The Brightness of the Night Sky

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

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• http://selena.sai.msu.ru/Pug/Publications/ms42/m42_60.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms083.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms082.pdf

... One striking feature is a small source of almost pure H 2 line emission, which is located near one of the compact sources in Orion reported by O'Dell and collaborators (HST-18 = 203-504). ... H-H objects, Proplyds, Orion Bar, H 2 . ... We obtained a series of images across the bright rim of the Orion Bar near the peaks of mm-wave molecular line emission with NICMOS cameras 1-3 (NIC1, NIC2, NIC3) in several filters on 1998 February 18. ... The suggestion of an H-H object does not seem compelling. ...

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• NICMOS/HST H-band (F160W) Images of the 30 Dor Starburst Cluster
• Introduction
• Some Experiments with the Restoration of NICMOS Camera 2 Images of OMC-1

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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• important_en
• Metagalaxy sector, archive 2000