Astronomy Picture of the Day . Mercury: A Cratered Inferno . ... Credit Copyright: Mariner 10 , NASA Explanation: Mercury's surface looks similar to our Moon's. Each is heavily cratered and made of rock. ... Mercury is the closest planet to the Sun, orbiting at about 1/3 the radius of the Earth's orbit . ... A new mission, Messenger, launched for Mercury last month and is scheduled to enter orbit around the Solar System's innermost planet in in 2011. ... U. Based on Astronomy Picture Of the Day . ...

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• Астронет > Mercury: A Cratered Inferno

... Explanation: Mercury's surface looks similar to our Moon's. Each is heavily cratered and made of rock. ... Mercury is the closest planet to the Sun , orbiting at about 1/3 the radius of the Earth's orbit . ... A new mission, Messenger, launched for Mercury last month and is scheduled to enter orbit around the Solar System's innermost planet in in 2011. APOD: 2003 April 12 - Mercury on the Horizon . ... Because Mercury orbits so close to the Sun, it never wanders far from the Sun in Earth's sky . ...

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• APOD: 2004 September 12 - Mercury: A Cratered Inferno
• APOD: November 30, 1997 - Mercury: A Cratered Inferno
• APOD: January 2, 1999 - Mercury: A Cratered Inferno

Gaspra . ... On October 29, 1991, Galileo came within 1,600 kilometers (1,000 miles) of Gaspra. ... These two color views of the asteroid Gaspra were produced by combining three images taken through violet, green, and infrared filters by the Galileo spacecraft on October 29, 1991, from a distance of about 16,000 kilometers (10,000 miles). ... The earliest view (upper left) was taken 5 hours, 45 minutes before closest approach when the spacecraft was 164,000 kilometers (102,000 miles) from Gaspra. ...

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• APOD: October 17, 1995 - Galaxy Dwingeloo 1 Emerges
• APOD: December 6, 1999 - M83: The Southern Pinwheel Galaxy from VLT
• APOD: December 27, 1999 - Solar Moss

... These other worlds are the moons of our Solar System , of which there are approximately 170 in orbit around our planets.Some of these moons are very interesting, and have diverse and unique features, very different to our barren, heavily cratered Moon .Jupiter, the largest planet in our solar system has the most moons of any planet with known 64 moons in orbit.The four ... Ganymede, the largest moon in the Solar System thought to have oceans located underneath its icy surface.( ...

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• Kepler 36b and c: Too Close for Comfort | Astronotes
• Exoplanet HAT-P-1b: weird, warm and fuzzy | Astronotes
• The Blue Planet | Astronotes

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• Los Cielos de Am , The darkest sky and the two galactic hemispheres

... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...

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• Newly discovered planet in the Hyades cluster could shed light on planetary

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . 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. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

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• Supernovae 2016adj in NGC 5128

... Tidal influence on each of the galaxies in our sample is quantified by identifying and measuring the distance to the nearest companion, using a photometric technique with good completeness characteristics. ... Massnormalised starformation rates were derived using galaxy stellar masses estimated from zband luminosities Nearest companions were identified using the algorithm illustrated in Figure 1. ... Some of the lowredshift galaxies in our sample with close companions are illustrated in Figure 3. ...

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... compare the system performance of 01aug06 and may06 (.ps) ( .pdf ) The 430 Mhz yagi antenna was moved closer to the line feed around 25jul06. ... This was the same source that was used on 29may06. 12 crosses were done with the yagi and 3 crosses with the linefeed. ... Each strip was rotated by the measured pointing error before averaging. ... The average yagi pointing errors are 3.56 Amin az and -.92 amin za. ... These pointing errors say the offsets should have been: az: .809, za: -.9453 deg. ...

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• turret cabinet,327rfi Jan16
• Asteroid 1998 ML14 1998 Aug 14-17
• Radar Images of asteroid 1998 ML14

... Figure 8: Can you detect the motion of the near-Earth asteroid 2000PH against the background stars during its close approach to Earth around 27 July 2004? ... Down) observed and imaged the unusual near-Earth asteroid 2000PH during its close approach to the Earth around 27 July 2004. The observations were carried out remotely using the new 2m aperture Faulkes telescope situated on the 10,000-foot summit of Haleakala, on the island of Maui in Hawaii. ...

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• Asteroid 2004 MN4
• Armagh Observatory
• Terry Mosely's Bulletins

... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...

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• ASP: Star Science in the Autumn Sky
• ASP: Using Multicultural Dimensions to Teach Astronomy
• ASP: The Music of the New Spheres?

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

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• Comet Shoemaker-Levy 9
• Proteus
• Pc 4 [Oulu]

... In the pn-CCD, 768 individual amplifiers allow fast readout, but imply different gains for the different readout channels which all have to be determined and corrected for. The gains of the 768 readout nodes were derived by comparing the position of CTI corrected calibration lines (in adu) with their known energy. ... More details on the CTI and gain correction can be found in []. ...

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... 1999 9° 10' Burns et al. xx image courtesy Norbert Junkes (MPIfR) Why Centaurus A is special s s s s s s s the first extragalactic radio source the brightest source in the Southern Hemisphere the second double lobed source discovered ­ after Cygnus A the closest Radio Galaxy the closest AGN the closest SMBH ­ VLBI resolution 0.01pc, 100 Rs A spectacular galaxy Evolution of the Models s ... Centaurus A composite Radio ­ Optical alignment Radio Radio ­ Optical alignment Precession?...

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• ATNF Daily Astronomy Picture
• Research - The high-velocity clouds of M31
• The HIPASS Bright Galaxy Survey

... Bad Astronomy . ... Bitesize Astronomy . ... If you thought our tour of the solar system ended with Neptune and Pluto, you are setting your sights way too low. The planets of the solar system mark time relatively close to the Sun compared to interstellar space. Pluto orbits the Sun at an average distance 40 times that of the Earth, yet the nearest star (the Alpha Centauri system) to the solar system is a mind-numbing 260,000 times the distance of the Earth to the Sun. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions

. Go Here for Hubble Ultra Deep Field . ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

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• The Galaxy Gallery: Messier Objects
• Comparing Means and Deviations
• Evidence for Dark Matter

... Get the file name to create the difference file name . file _type,ext = os.path.splitext(os.path.basename( self.new_PRD_file )) results_ file = file _type + .dif if (len(self.dif_lis) 0): output = open(results_ file , w ) output.writelines(self.dif_lis) output.close() def compare_ file (self): Compare the new file with the old ... None): # Compare against installed reference PRD file. diff_util.compare_install_file(new_file, branch_name) elif (old_file != ...

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• brown dwarfs - 3
• Summary
• Imaging Performance of HST Compared to Future Ground-Based Adaptive Optics

... About meteorites . ... Meteoritic data . Impact Crater Smerdyachee . ... Based on Smerdyachee's depth, near circularity, and its mounded wall, and analysis by N.A. Fillin of nearby Roshal, Russia, the Estonian scientists Yu.V. Krestlane and K.H. Mella proposed in 1987 that Smerdyachee Lake is a meteorite crater. ... In 2002, the Laboratory of Meteoritics of the Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences explored this mysterious lake. ...

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Asteroid 2055 YU55 passes close by Earth; how close did it get? ... As Elizabeth Flock reported: An asteroid the size of an aircraft carrier missed Earth by only 200,000 miles as it flew by Tuesday night the closest an asteroid has been to Earth in 200 years Asteroid 2005 YU55, as it has been dubbed, streaked by at about 30,000 mph, but some scientists and lucky amateur astronomers caught a glimpse in their telescopes, where they saw strange structures on the asteroid\u2019s dark-colored surface. ...

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• IJEventListener (ImageJ API)

... Massive stars, having 10-150 masses of the Sun, with metallicities Z tens to hundreds times less than that of the Sun (Zo), are the main regulators of the galaxy formation and evolution processes in the early Universe. ... In this galaxy, using the 6 m BTA telescope, a new massive blue variable star with high luminosity (>=10 5 Sun's luminocities in visible light) was found. As far as its properties are concerned, this star falls into an LBV (Luminous Blue Variable) class of stars. ...

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• G 89-14
• New LBV Star Discovered in the Galaxy
• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology