... IC 2118: The Witch Head Nebula . ... This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion . More formally known as IC 2118 , the Witch Head Nebula glows primarily by light reflected from Rigel , the bright star just left of center in the above image. ... The blue color is caused not only by Rigel 's blue color but because the dust grains reflect blue light more efficiently than red. ... Rigel and the Witch Head Nebula . ...

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• The Witch Head Nebula
• Rigel and the Witch Head Nebula

Today's APOD | ... Editor's choices for the most educational Astronomy Pictures of the Day about reflection nebulae: . APOD: 1999 October 31 - The Witch Head Nebula . ... APOD: 1999 March 1 - Reflection Nebula NGC 1435 . ... The nebula , cataloged as NGC 1999, is a reflection nebula , which shines by reflecting light from a nearby star. ... Reflection nebula NGC 1999 lies about 1500 light-years away in the constellation Orion , just south of Orion's well known emission nebula, M42 . ... Index | ...

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• APOD: 2006 December 11 - IC 2118: The Witch Head Nebula
• APOD: 2009 December 29 - Rigel and the Witch Head Nebula
• APOD: 2012 January 17 - IC 2118: The Witch Head Nebula

... The Witch Head Nebula . ... Explanation: Double, double toil and trouble; Fire burn, and cauldron bubble -- maybe Macbeth should have consulted the Witch Head Nebula. ... More formally known as IC 2118 , the Witch Head Nebula glows primarily by light reflected from Rigel , located just outside the top right corner of the above image . ... The blue color is caused not only by Rigel's blue color but because the dust grains reflect blue light more efficiently than red. ...

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• APOD: 2000 April 24 - Reflection Nebula M78
• APOD: May 22, 1996 - Star Cluster in the Rosette Nebula
• FIRST LIGHT OF ARNICA AT TNG

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 Page 6: Comparative Morphology

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Publications of the ASP (PASP) . ... By the Light of the Moon . ... Moonlight varies over a greater range than the light from any other bright celestial object?planet, satellite, or star?in the entire sky. ... The level of light that disturbs this gland and its secretions is not yet accurately known, but indications are that this level is not much brighter than the full Moon. ...

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• ASP: Bright-Lights, Big-City, Overcast Survival Guide
• ASP: Lighting the Nebulae
• ASP: Black Holes to Blackboards: Seeing the Light

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...

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• The Very Large Telescope Project
• The Brightness of the Night Sky
• Los Cielos de Am , The darkest sky and the two galactic hemispheres

... Surface Brightness of Background Light . Home . ... Data . ... WFPC2 Home . ... Instrument Home . WFPC2 History . ... LRF Data . ... Data Analysis Home . ... Instrument Handbook . Data Handbook . ... Input the surface brightness in magnitudes per square arcsecond. ... Galaxy U-B and B-V colors are drawn from Longo and deVaucouleurs 1983 for representative objects;V-R and R-I are estimated from WFPC2 Handbook Table 6.1. ... AB_xxxxx are AB magnitudes at the standard WFPC2 filter bands. ...

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• Roelof's Publications
• John H. Debes
• cgvc 121

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

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• Meade Series 4000 Broadband Nebular Filters

... STScI-PRC95-45a CRUCIBLE OF CREATION: PANORAMIC HUBBLE MOSAIC ZOOMS IN ON MAELSTROM OF STAR BIRTH This spectacular color panorama of the center the Orion nebula is one of the largest pictures ever assembled from individual images taken with NASA's Hubble Space Telescope. ... Though this 2.5 light-years wide view is still a small portion of the entire nebula, it includes almost all of the light from the bright glowing clouds of gas and a star cluster associated with the nebula. ...

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• The Pleiades
• M42 Color Images
• What is HISA?

B?rbel Koribalski (ATNF) + HIPASS and ZOA teams . Velocities are color coded in bins of 1000 km/s: . dark blue . ... light blue . cross . 1000 . green . ... HVCs? ... All the new galaxies, most of which are at |b| All the new galaxies are marked in blue, HI clouds in green and HVCs in orange. (plot by Malte Marquarding, aips++). bkoribal @ atnf.csiro.au ...

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• The 1000 Brightest HIPASS Galaxies
• Archive of VLBI Observations Majordomo List
• X-Ray Microlensing of Bright Quasars

... OM-K62-1000 1000mA 5 Port Double USB Charging Socket Panel . Model: OM-K62-1000 . ... Interface: USB 2.0 . ... Output Current: 1000mA . ... Special function: Wall Charger Power . ... Plugs & Sockets . ... Package Contents: 1 x OM-K62-1000 1000mA Universal Double USB Outlet Power Wall Socket Plug . ... title='Аксессуар Activ USB - micro USB Cabelet Mono Grey 46893' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ...

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• Математика. 2 класс. Самооценка. Самоконтроль - М. В. Головач - М. В. Головач
• Укороченная куртка Buffalo - BUFFALO - BUFFALO Чайник Scarlett SC-EK21S05
• Кроссовки STATES PERF PACK - Puma - Puma Комплект постельного белья, евро

... Astronomy news . ... Double Engine Fuels Star's Remarkable Nebula . ESO has just released a stunning new image of a field of stars towards the constellation of Carina (the Keel). ... Interactions in this double system, surrounded by a dusty disc, may be the engine fuelling the star s remarkable nebula. The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. ...

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• Publications

Next: UBV light curves (Duerbeck Up: Optical light curves Previous: UBV light curves (Lyutyi, . UBV system; U,B,V photometry of A0620-00 #Ref: AJ 81, 104 ( 1976 ) S. van den Bergh # V, B-V, U-B наблюдения в системе UBV на фотоумножителе #errors: не приведены # - taking into account fast fluctuations of brightness and color with # amplitude ~ 0.1 mag, at least during half an hour (Lyutyi, 1976 ) = # errors sre set to be ...

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• UBV light curves (Duerbeck and Walter, 1976)
• Astronomical Periodical Publications
• UBV light curves (Lyutyi, 1976)

These images reveal light from a massive stellar outburst in the Carina Nebula reflecting off dust clouds surrounding a behemoth double-star system. The color image at left shows the Carina Nebula, a star-forming region located 7,500 light-years from Earth. The massive double-star system Eta Carinae resides near the top of the image. ... The three black-and-white images at right show light from the eruption illuminating dust clouds near the doomed star system as it moves through them. ...

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• Sky-event alert: Venus, brightest light in the night sky | Astronomy.com
• The rich colors of a cosmic seagull | Astronomy.com
• Hubble observes a dwarf galaxy with a bright nebula | Astronomy.com

... Spectrosc., 90 , 574-579. [ abstract (in English; ASCII file); paper (in Russian; PS file)] . ... Astronomy Letters, 26 , N 10, 679-690. [ abstract (ASCII file); paper (PDF file)] . ... 2001) . ... 72 , N 5, 607-612. [ abstract (ASCII file); paper (PS file)] . ... Scattering and polarization properties of the non-spherical particles. in: Smith W.L., Timofeyev Y.M. (eds.) IRS 2000: Current Problems in Atmospheric Radiation, A.Deepak Publ. (in press) [ abstract (ASCII file); paper (PS file)] . ...

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• INTAS project 2003

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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• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE
• Supernova 2006X in M100
• Supernovae 2012fr in NGC 1365

... 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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• Refereed Journal Publications 1999
• Objects in the Sky
• Melotte15 Inside The Heart Nebula | International Year of Astronomy in Ireland

Astronomers usually measure the flux of an object by collecting light with a telescope, sending it through a known filter, and then determining the power. ... But astronomers usually give their photometric results in terms of magnitudes. ... Astronomers define an absolute magnitude that is independent of the distance of a star and only depends on the intrinsic properties of the object: the absolute magnitude is the magnitude the star would have if it were 10 parsecs away from the Earth. ...

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• Spectroscopy
• Balloon Model in Java
• "Structure" publications in 2004 year

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

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• http://jet.sao.ru/jet/~bars/BTMP/Barsukova_red.pdf
• http://jet.sao.ru/jet/~bars/BARS_SSSe.pdf
• http://jet.sao.ru/jet/~goray/v4641/at4641.htm

Galactic Wind Shells and High Redshift Radio Galaxies . ... M.Krause . Astronomy & Astrophysics, v.436, 845-851 . Very Light Jets II: Bipolar large scale simulations in King atmospheres [small version] . ... Simulations of Astrophysical Jets in Dense Environments . M.Krause, V.Gaibler & M.Camenzind . in: High Performance Computing in Science and Engeneering '05 eds.: E.Krause, W.J ger & M.Resch. ... M.Krause & M.Camenzind . ... Martin Krause & Paul Alexander . ... Martin Krause . ...

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• Astrophysics Group AMI Publications