... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

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... What would it look like to peer into one of the volcanoes currently active on Jupiter's moon Io? ... Comet Ikeya Zhang over Tenerife . ... The comet appears.. ... Known to some as the Elephant's Trunk Nebula, parts of gas and dust clouds of this star formation region may appear to take on foreboding forms, some nearly human. ... This image from the Hubble Space Telescope reveals the Cat's Eye Nebula to be one of the most complex planetary nebulae known. ... Odyssey Over Mars . ...

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... To be read in conjunction with Section 4.11 of the WFPC2 Instrument Handbook , -Version 4.0. ... 1 The second study found evidence that CTE loss for faint stars has increased with time (Whitmore, 1998). The primary observational consequence of CTE loss is that a point source at the top of the chip appears to be fainter than if observed at the bottom of the chip, due to the loss of electrons as the star is read out down the chip (see Figure 1 ). ... Last updated: 06/16/98 10:38:00 . ...

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• Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for
• The Outburst of V1647 Orionis Revealed by Spitzer
• STScI Preprint #1225

I-GALFA Reveals Dynamic Events in Our Galaxy . S. J. Gibson, J.-h. Kang, B.-C. Koo, June 2009 . ... The white stripe marks the Galactic equator ( b=0 ). ... I-GALFA three-color H I image for FVW40.0+0.5, integrated over v lsr = -100 to -90 km/s ( red ), -90 to -80 km/s ( green ), and -80 to -70 km/s ( blue ). ... I-GALFA data reveal a complex tracery of loops, filaments, and blobs hundreds of parsecs above and below the Galactic plane, with isolated compact clouds extending even higher. ...

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• HISA Science Overview
• The Pleiades
• HISA Poster for the 33rd Annual Meeting of CASCA, May, 2002

... 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/~goray/2362/v2362cyg.htm
• Fabry-Perot Interferometer: Gallery Old

... 2005 August 8 . Mars to Appear Normal This August . ... Regardless of numerous urban legends circulating, Mars will appear relatively normal in August. October is the best month to see Mars this year. ... As Earth catches up to Mars in their respective orbits around the Sun, Mars will keep rising earlier in the night. On 2005 October 30, Earth will have caught up to Mars and the planets will be the nearest to each other in their orbits -- this time around. ... About APOD | ...

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• APOD Index - Nebulae: Emission Nebulae
• APOD: 2015 February 18 - Dark Craters and Bright Spots Revealed on Asteroid
• APOD: 2003 March 17 - SN 1006: History's Brightest Supernova

. The Spitzer Space Telescope reveals infrared radiation coming from dust particles heated by the supernova's shock wave. The glow appears brightest just outside the regions seen by Hubble. Four hundred years after the explosion, Kepler's supernova remnant now spans 14 light-years. NASA/ESA/JHU/R. Sankrit and W. Blair

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B4002BF6D-6A06-4F08-BF0D-817632B60FEE%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BF236F9BB-B584-4B98-A55B-A3A6822FB77C%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B38FED62A-7F18-4853-B9FB-3B315E9FF85D%7D

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Chandra Proposer's Guide pile up section ] During frame readout, the ACIS CCDs take 40 microsec to (parallel) transfer the charge by one pixel. As a result of this, each frame readout, each pixel is exposed for 40 microsec to a source (plus cosmic X-ray background) at each location along its column. ... Note also that the image does not just trail, it extends along the whole column. ... Chandra Supernova Remnant Catalog . ...

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• The galaxy M100

... From Terry Moseley: "A very bright fireball was seen widely over Ireland, and even as far away as Liverpool, at about 00.30 on Sunday morning, 4 April. John McConnell saw it from Maghaberry, Co Antrim, and a woman saw it from her home in Newry, Co Down. The Liverpool observer reports that the fireball appeared at 30 - 40 degrees altitude in the western sky at 00:33 UT on 2009 April 05. ... I saw it) early Sunday morning at 00:32 BST. ... International Year of Astronomy, Ireland National Node . ...

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• Armagh Observatory
• Mystery Flare | International Year of Astronomy in Ireland | Astronomy 2009
• Bright Point Studies

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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• Galaxy Gallery Page III
• The Galaxy Gallery: Messier Objects
• LSB wALES cONFERENCE fOLLOW-pu

... STScI-PRC99-05a NICMOS PEERS THROUGH DUST TO REVEAL YOUNG STELLAR DISKS The following images were taken by NASA Hubble Space Telescope' Near-Infrared Camera s and Multi-Object Spectrometer. ... A thin , dark lane extends to the left and to righ t of th e binary, suggesting that a disk or ring o f dusty material encircles the two young stars. ... The young star itself appears as the bright red spot at the corner of the V-shaped nebula. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/97-33.txt
• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/NGC7027.txt
• A collection of images

... 2004: . ... An increase in star brightness is followed by a decrease in asphericity and wind velocity to the point where stationary and even accreting fraction of the wind appears in extremely bright objects together with a flowing out fraction. ... Based on an analysis of observations obtained with BTA and on the published data it was found that degree of abnormality of energy distribution in continuum of magnetic chemically peculiar stars increases with an increase of their rotation period. ...