... 30.11.1995 . ... Credit: NASA , HST , S. R. Heap ( GSFC ) Explanation: In the center of the above photograph lies a star with one of the hottest surface temperatures yet confirmed. This bright white dwarf star's surface has been measured at greater than 200,000 degrees Celsius - more than 30 times hotter than that of our own Sun . ... November 1995 . ... Publications with keywords: nucleus - NGC 2440 . Publications with words: nucleus - NGC 2440 . ... NGC 2440: Cocoon of a New White Dwarf . ...

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• Journal "Peremennye Zvezdy"
• XWare > APOD

... November 30, 1995 . NGC 2440 Nucleus: The Hottest Star? Credit: NASA , HST , S. R. Heap ( GSFC ) . ... This bright white dwarf star's surface has been measured at greater than 200,000 degrees Celsius - more than 30 times hotter than that of our own Sun . ... The star is at the center of the planetary nebula titled NGC 2440, which lies inside our Milky Way Galaxy . ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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• APOD: 2012 November 26 - Wisps of the Veil Nebula
• APOD: 2013 November 27 - Comet ISON Rising
• APOD: 2004 November 3 - A Time Lapse Lunar Eclipse

... 2014: . Suppression of cooling by strong magnetic fields in white dwarf stars . ... 69, 439, 2014. Evidence of supercritical accretion in SS433 . ... We discovered a flat portion (white noise) in the power spectrum of SS433 due to an abrupt increase of the disk thickness in the supercritical region. ... Both the hard X-ray radiation and the visual light are seen reflected from the walls of the funnel that forms in the wind of the supercritical disk of SS433. ... Archive . ...

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• Galaxy sector, archive 2009
• Galaxy sector, archive 1994
• Galaxy sector, archive 2002

. Images of Comet ISON, taken by the spectrograph SUMER on board the solar observatory SOHO on November 28, 2014, at 6:01 p.m. Central European Time, reveal the tail s shape. The red dots mark the predicted positions of the comet s nucleus in intervals of one minute, the red cross depicts the last position at the time of the picture recording. The white arrow indicates the direction to the Sun. Brightness contours and center line of the tail clarify its appearance. MPS

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BE12E97E0-FC2F-4D4E-847B-813B2EC7E0F1%7D
• Time travel | Astronomy.com
• Do black holes stretch or rip the fabric of space-time? | Astronomy.com

... STScI-PRC00-04 AN EXPANDING BUBBLE IN SPACE Astronomers, using the Wide Field Planetary Camera 2 on board NASA's Hubble Space Telescope in October and November 1997 and April 1999, imaged the Bubble Nebula (NGC 7635) with unprecedented clarity. ... The remarkably spherical "Bubble" marks the boundary between an intense wind of particles from the star and the more quiescent interior of the nebula. ... To the right of the central star is a ridge of much denser gas. ...

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• Titan Press Release
• A collection of images
• APOD: November 12, 1996 - Comet Hale-Bopp Passes M14

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Publications of the ASP (PASP) . ... Mercury's Time to "Shine" . ... As seen from Earth, three celestial bodies sometimes pass in front of the Sun: the Moon, Venus, and Mercury. And in November, it is Mercury?s turn. ... Transits of Venus are very rare, indeed?none occurred in the entire 20th century?but Mercury transits the Sun about thirteen times every century. ... publications . ...

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• ASP: Guest Observer
• ASP: Monster Comet Promises Big Show
• ASP: Contents, Nov/Dec 1996

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

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• Galaxy Gallery Page III
• Low Surface Brightness Galaxy Gallery
• The Galaxy Gallery Page 6: Comparative Morphology

... Asher, D.J. , 1999, ``The Leonid meteor storms of 1833 and 1866'', MNRAS, 307, 919-924. ... Asher, D.J., Bailey, M.E. , Emel'yanenko, V.V., 1999, ``The resonant Leonid trail from 1333'', Irish Astron. ... McNaught, R.H., Asher, D.J. , 1999, ``Leonid dust trails and meteor storms'', WGN, Journal of the Int. Meteor Org., 27, 85-102. 23. ?zeren, F.F., Doyle, J.G., Jevremovic, D. , 1999, ``The Wilson-Bappu relation for RSCVn stars'', A&A, 350, 635-642. ...

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• Leonids 2006
• Armagh Observatory
• Leonids 2002

... About ATNF overview . ... Both are consistent with earlier estimates, computed for the population of optically selected galaxies. This consistency occurs because, although the distribution of optical central surface brightnesses among galaxies is flat, we fail to find a population of galaxies with central surface brightnesses fainter than 24б  B - , even though there is no observational selection against them. Keywords: Galaxies: Luminosity Function, Mass Function; Surveys . ...

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• Surface brightness measurements of extended galactic nebulae
• Symposia and Workshops тАУ November 2003 to March 2004
• ATNF Colloquium

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 14.05.2010 . ... All news ...

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• Master net

... Three ` flavours'of binning and discard: · Discard 9 rows , readout 1 row, cut 10:1, resolution 1.75ms · Discard 90 rows , bin 10 rows , cut 10:1, resolution 2.76ms · Discard 95 rows , bin 5 rows , cut 20:1, resolution 2.76ms · Compared with normal timing : · 100 rows and readout, no cut, resolution 1.75ms Bin · Tested on XMM on Crab during rev 333 - 3 October 2001 Crab - rev 333 - Bright timing ... Counting mode and FIFO full errors. ... Crab - rev 333 - Bright timing mode ...

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• http://xmm.vilspa.esa.es/sas/6.1.0/doc/barycen.ps.gz
• http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0201-1-2.ps.gz
• Decreasing processing time

ARCSAT ID NUMBER: AS03 DESCRIPTIVE TITLE: Search for Short-Period Planets Orbiting Bright White Dwarfs PI: Brett Morris (UW) OBSERVER(S): Brett Morris (UW) UNCERTIFIED/UNTRAINED OBSERVERS: Two students from the University of Washington's Pre-MAP (Doug Branton + One unknown student) COLLABORATORS: Doug Branton (UW/Pre-MAP) CONTACT INFORMATION: bmmorris@uw.edu, 631-860-5116 TIME REQUESTED: Weeks ...

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• default
• Standard Stars For ARCES
• Untitled Document

Comet 17P/Holmes increased in brightness over a half of million times on 2007 October 24 ( APOD 2007 October 26 ). On November 1 it was still in peak of its brightness, when I pointed at it the 25-cm telescope of my home observatory located in the Nizhnyj Arkhys, Community of the Special Astrophysical Observatory in Karachai-Cherkesia, Russia. Figure 1. Comet 17P/Holmes identified in the frame of SAO 1-m Zeiss all-sky TV camera on 2007 November 1. ... Comet is a green nonstellar object. ...

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• The real-time system for astronomical observations on the telescopes of the
• Time Functions
• Linux I/O port programming mini-HOWTO: High-resolution timing

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... November . ... By admin September 26, 2012 Posted in: Comets and Asteroids . Comet ISON is revealed.( ... Comet ISON.'s orbit and position on 25 September 2012.( ... The comet€а will reach its closest point to the Sun, perihelion in late November 2013.Then it is expected to whizz around the Sun a mere 1.1 million km above its surface making Comet ISON one of that class of comets called€а Sungrazers. ...

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• Return to Comet Tempel 1 | Astronotes
• Pinteresting Times for Armagh Planetarium | Astronotes
• Christmas is cancelled for Shuttle Discovery | Astronotes

. Skip Navigation (press 2) . Home . Research . Tools . Curriculum Vitae . Publications . About Me . The WIRED Survey . ISM Interaction Models . White Dwarf Spectra . Presentation Slides . An image of G29-38, taken with NICMOS, that shows light from the star (left) and the same light subtracted using ADI. An artificial companion has been inserted 30 AU away that has the equivalent brightness to an object with 5 times the mass of Jupiter.

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• Eclipse Decomposition of Time-Resolved UBVRI and HST Spectra of the Dwarf Nova
• Constraints on Acquisitions and the STEP-TIME Parameter
• Scans of News Articles

... Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Urgent Astronomy Spectroscopy Solar System 26 hrs Hours 40 min OH Spectroscopy of C/2012 X1 LINEAR November 2013- March 2014 Comet LINEAR (C/2012 X1) recently underwent an outburst, making it brighter than expected, and allowing us to detect OH in the coma. These data will determine the water production rate and outflow velocity of the coma gases. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/HarmontagR2562tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/HowelltagA2885tp.ps
• http://www.naic.edu/vscience/schedule/tpfiles/HarmontagR2562tp.ps

... For SIMS (Secondary Ion Mass Spectrometry) analysis, a solid surface is bombarded by primary ions of some keV energy. ... The subsequent mass analysis of the emitted ions provides detailed information on the elemental and molecular composition of the surface. ... Extremely short ion pulses with a duration below . ... By rastering a fine-focussed ion beam over the surface, like an electron beam in an electron microprobe, mass resolved secondary ion images (chemical maps) can be obtained...

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• Homepage of Denis Bulaev - Publications
• Comet Ephemerides
• Comet Observation Home Page (Chernogolovka)

... Comet Animation . ... Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of diffuse material, called a coma, that usually grows in size and brightness as the comet approaches the Sun. ... As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilometers from the head, away from the Sun. ... The evaporated molecules boil off and carry small solid particles with them, forming the comet's coma of gas and dust. ...

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• First X-Rays From a Comet Discovered
• The Sun
• Comet Shoemaker-Levy 9

... Astronomers have recently spotted two retired stars (called white dwarfs) at the centre of this beautiful nebula that have taken up sculpting! The red coloured jets of material shooting out of either side of this nebula are being twisted into curvy S-shapes by the dance between the two aged stars. ... Astronomers expect stars in a white dwarf binary system to take tens of years to complete an orbit around each other, but it takes little more than a day for these two! ...

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• ESO - Observing Time Calcaulation for APEX Instruments Artemis and Supercam
• ESO - Real Time Follow-up of Transient Objects From PESSTO
• ESO - Science Announcements

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• VISTA Integration Time DIT Recommendations
• VISTA Exposure Time Calculator Help v1.0
• VISTA - Visible and Infrared Survey Telescope for Astronomy