M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• Cosmological Issues for Theorists

This page gives the name and meaning of the various parameters which can be queried in HyperLeda through SQL requests . ... real . ... actual error on t . ... log 10 of apparent major axis diameter d25 at 25 mag.arcsec -2 (d25 in 0.1') . ... actual error on logd25 . ... Apparent maximum rotation velocity of gas . ... log 10 of apparent corrected diameter (dc in 0.1') . ... total apparent corrected B-magnitude . ... total apparent corrected U-B color . ... Questions: leda@univ-lyon1.fr ...

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• All Sky Catalog at 2.7 GHz
• Color Chilled 3-chip CCD Camera C5810

asyncore . ... usr/local/Python-2.5/lib/python2.5/asyncore.py . Module Docs . ... references to the underlying socket object. __init__ (self, sock =None , map =None ) . ... add_channel (self, map =None ) . ... del_channel (self, map =None ) . ... set_socket (self, sock, map =None ) . ... init__ (self, sock =None , map =None ) . ... Data and other attributes inherited from dispatcher : . ... init__ (self, fd, map =None ) . ... loop (timeout =30.0 , use_poll =False , map =None , count =None ) . ...

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• Observing Faint Targets Near Bright Objects
• Application to Simulated Data
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The picture above was made with this demo POV file and this magnet object POV file . This is two objects, one is the magnet, and the other is the paint around the magnet. ... The real magnets I based this on had thick paint, and several of them had chips around the edges. ... This is shown in the top magnet in the picture above. The magnet body is 0.75 units in diameter, and protrudes 0.22 units in the -Z direction from the "wall". ... WARNING: This POV object is based on a real object. ...

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• Tom's POVRay Ink Pen
• Tom's POVRay Wall-Mounted Magnifying Mirror
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... Bad Astronomy . ... Mad Science . ... Are colored dwarfs actually colored or are they different kinds of stars? ... Therefore a white dwarf is very bright, and a brown dwarf is very dark. ... Brown dwarfs are a newly discovered type of object, which are midway between stars and planets. ... Several brown dwarfs have been recently discovered orbiting normal stars; you can find more about them at one of my favorite web sites, The Nine Planets , on the page called "Other Solar Systems?" ...

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• Phil Plait's Bad Astronomy: Misconceptions: Coast to Coast Am
• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Info

... Science . ... Science Users Information > Science Publications > Science Announcements > Real Time Follow-up of Transient Objects From PESSTO . ... Observing Facilities . ... Observing with ESO Telescopes . ... Data Handling and Products . ... ESO Data . ... The Public ESO Spectroscopic Survey of Transient Objects ( PESSTO ) provides high-quality, time series optical and near-infrared spectroscopy of optical transients covering a broad range of luminosity, host metallicity and explosion mechanisms. ...

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• ESO - Science Announcements
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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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• Why Asteroid 2008 TC3 Represents a Landmark - Dr David Asher, from Armagh
• Szyzyg's Page
• Terry Mosely's Bulletins

... We have measured this "redshift" for the pink black holes, and allowed for it in our calculations. ... We see this effect in the emission from gas around these pink black holes, but it is far too small an effect to account for the pinkness. Thus the swirling motions of gas around or into the black holes cannot produc the colour. ... At first we thought that these things were normal blue black holes hidden behind clouds of interstellar dust, that absorbed the blue light and made them appear pink. ...

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The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

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• ASP: A Good Definition of the Word "Planet": Mission Impossible?
• ASP: Black Holes to Blackboards: Seeing the Light
• ASP: Making Model Comets: Has it really been 20 Years?

... Yesterday, at about 10 am Universal Time, Mars and Earth passed closer than in nearly 60,000 years. ... The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. ... The Tarantula Nebula is more than 1,000 light-years across - a giant emission nebula within our neighboring galaxy the Large Magellanic Cloud. ...

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Next: The BeppoSAX Low-Energy Concentrator Spectrometer Archive at the Space Science Department of ESA . Up: Archiving . ... The Integrated Data Archive System . ... This paper shows aspects of the development of a prototype application to test the feasibility of near real time distribution of Telemetry Packets to the different instrument control centers. ... The FIRST ground segment will be based on the object oriented FIRST Integrated Network and Data Archive System - FINDAS. ...

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• Real Time Linux -- The RTOS for Astronomy?
• QuickLook Data Reduction Pipeline - Keck Adaptive Optics Real Time Data
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... Tonight's Sky . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Astronomy for Kids . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Is Interstellar Travel Really Possible? ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

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• When a really big rock (or a huge chunk of iron) hits Earth, why does it
• The Real Reality Show: Matter and Energy | Astronomy.com
• The Real Reality Show: Would aliens be anything like us? | Astronomy.com

... 2010 January 26 . Annular Eclipse Over Myanmar . ... The event on January 15 was actually an annular solar eclipse, and the hole was really Earth's Moon, an object whose dark half may appear even darker when compared to the tremendously bright Sun . ... Pictured above was a complete solar annular eclipse sequence as seen above the Ananda Temple in Bagan , Myanmar . ... The next solar eclipse will be a total solar eclipse during 2010 July. ... About APOD | ... A service of: ASD at NASA / GSFC . ...

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• Seeing the Solar System
• APOD: December 17, 1999 - Hot Gas In Hydra A
• APOD: 2007 May 23 - Venus Near the Moon

Summer Triangle . Articles | ... As dusk deepens into night in early June, look a bit north of east, not real high in the sky, for a sparkling blue-white star, whose name is Vega . ... Since the stars rise some four minutes earlier with each passing day, expect the stars of the Summer Triangle to light up the twilight dusk around middle to late June -- a sure harbinger of the change of seasons, of spring giving way to summer. ... Re-published on Astronomy Net with permission of the author. ...

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• Not Really - an Astronomy Net Exploration Forum Message
• Black Holes And RedShift - an Astronomy Net Blackholes Forum Message
• What Really Exists Outside The Universe - an Astronomy Net Observation_reports

... Stars . ... Straight away the three stars in his belt will grab your attention, followed by the glittering white star Rigel in his left foot and the bright orangish star Betelgeuse in his right shoulder (assuming Orion is standing facing us and not with his back to us). ... Orion Belt?s with the stars Alnitak, Alnilam and Mintaka. ... In short, Orion was a big, loud giant of a man and indeed a mighty hunter, he also inherited some aquatic superpowers from his father who was the sea god Neptune. ...

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• The Real Mystery Satellites | Astronotes
• November Night Sky Wonders | Astronotes
• March Sky Wonders | Astronotes

The computed band passes. ... The interim correlator input is filtered by 8 analog filters (50 Mhz wide at the 260 Mhz IF... one for each sub correlator). ... For bandwidths of 25 Mhz and below the real data stream is digitally down converted to complex samples I, Q streams. ... The Top figure is the halfband filter bandpass computed from the filter coefficients. ... The computed filter has aliased power, extra IQ filtering, and two applications of the filter on the resulting real bandpass. ...

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• http://www.naic.edu/~phil/hardware/12meter/danasFiberTest.txt
• Banff National Park
• Why can I only see six of the ``Seven Sisters''?

Y ou don't need your own Voyager to see the solar system. ... Refer to Sky Telescope or a similar magazine for up to date positions or check one of the several Web sites that show planetary positions. ... You can see 99.99% of the mass of the solar system with no instruments whatsoever. ... Jupiter . ... Mars . ... For $200 you can get a far better optical instrument than Galileo or Newton had. ... Date . ... William Herschel . ... O f course, the solar system has more than just planets and moons. ...

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• Neptune Picture List
• Janus
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... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

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• You Know your a DSO When...
• Astronomical Glossary - S - Z

High redshift radio galaxies and SMBH evolution Mark Lacy Outline - what did we learn in the last 10 years? Radio galaxies contain really big black holes. ... Some high-z radio galaxies are forming a lot of stars. Radio jets can both drive strong shocks into the ISM (negative feedback for star formation?) and form stars (positive feedback for star formation?) High-z radio galaxies are not alone - radio quiet and radio intermediate type-2 quasars are common at high redshifts. ...

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• http://www.atnf.csiro.au/pub/software/miriad/tutorials/vmcintyr.ps.gz
• casacore: casa::ObjCompare< T > Class Template Reference
• casacore: casa::Real< T, RES > Struct Template Reference

... October 4, 1995 . The Sun Spews X-rays . Credit: Yohkoh Soft X-ray Telescope , ISAS , Japan . Explanation: Our Sun is really very hot. The Sun's outer atmosphere is so hot that it emits much light in the X-ray band, which was unexpected. X-rays are usually emitted from objects having a temperature in the millions of degrees, not the mere thousands of degrees of the Sun's surface. The above X-ray picture shows the Sun one particularly active day in August of 1992. ...

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• Educator's Guide to Micrometeorites
• Mirror packages are available, but that's not really enough
• Not really needed