... July 24, 1997 . Mars Pathfinder's Landing Site . ... Explanation: Where is Mars Pathfinder ? ... From the surface Mars appears covered with rocks, but from orbit Mars appears covered with craters. ... These hills are about one kilometer from the landing site, twice the planned range of Sojourner . Two craters loom nearby: a small one to the east not easily visible here, and a big one to the south of Pathfinder. ... About APOD > . ...

... Mars Pathfinder's Landing Site . ... From the surface Mars appears covered with rocks, but from orbit Mars appears covered with craters. ... These hills are about one kilometer from the landing site, twice the planned range of Sojourner . Two craters loom nearby: a small one to the east not easily visible here, and a big one to the south of Pathfinder. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: mars pathfinder - Mars . ... Victoria Crater on Mars . ...

... 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. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Noctilucent clouds as photographed by Mark Bailey from Lisdoart on 14th July 2006 at 11.30 pm. ... These so-called noctilucent (night glowing) clouds (NLCs), are formed by sunlight reflecting off ice crystals high in the atmosphere, and usually appear in the northwest, through north to northeast during twilight in the late spring and summer months at our latitude. ...

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

... July 13, 1999 . The Flame Nebula in Infrared . ... Explanation: What lights up the Flame Nebula? Fifteen hundred light years away towards the constellation of Orion lies a nebula which, from its glow and dark dust lanes, appears like a billowing fire. ... Rather the bright star Alnitak , the easternmost star in the Belt of Orion visible to the nebula's right, shines energetic light into the Flame that knocks electrons away from the great clouds of hydrogen gas that reside there. ...

... self-absorption - the absorption of light shining on an object by a process similar to that which produced the light originally; if a cloud emits less light than it absorbs from other clouds behind it, this net loss of light, termed self-absorption , causes the foreground cloud to appear darker than the background field (the term is from spectroscopy, where small absorption dips sometimes occur in larger emission lines, making the latter look as if it is absorbing part of itself) . ... HISA Main ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Red Rover?s Rocky Road . ... Centuries of telescopic observations and nearly 40 years of spacecraft flybys, orbiters, and landers have provided compelling evidence that Mars was once much more Earthlike than it is today. ... Big flagship missions like Mariner 9 and the Viking orbiters and landers provided most of our initial close-up views of the Red Planet. ... publications . ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

... Impact craters and associated concentric rings are about the only features to be found on Callisto. ... It has a bright central region that is 600 kilometers in diameter, and its rings extend to 3000 kilometers in diameter. ... This image shows the heavily cratered surface of Callisto. ... Also visible is a fresh, sharp-rimmed crater some 90 km (56 miles) across named Igaluk (center left third of picture), and a bright zone in the south polar area (bottom of image) which could be an impact scar. ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 02 - 08.07.2012, Forecast on 09 - 16.07.2012, Carrington Rotation 2125 (21,62.06.2012) SUNSPOT ACTIVITY WAS ON THE HIGH LEVEL AT 02 JULY AND AFTER - ON THE AVERAGE JEVEL. ... After 30.06 to 1.07 it area increased in 2.5 times (new magnetic flux emergence), and at time interval July 3 - 8 in it 5 large and 26 midle solar flare were occurrence. ... Fast development assumes high flare activity, since July 9-10. ... FLARES to tm te c/p local. ...

... Subsequent WFC 3 and C OS observations are consistent with a successful focus move, but cannot yet be used to confirm it. WFC3 U VIS zero-point analysis is ongoing and looks nominal. ... TKeyes · NUV focus sweep (program 11469 visit 94) executed on Monda o After the H ST secondary mirror move o Appears nominal (but error bars are large) o Focus position is well w ithin nominal breathing range for this observation. ... Visit 3 (Grating Efficiency Test) analysis is underway, results later this week. ...

... Kirby, E., Jerjen, H., Ryder, S., Driver, S., Deep Near-IR Surface Photometry of 57 Galaxies in the Local Sphere of Influence , AJ, 136, 1866 (2008) . Kirby, E., Jerjen, H., Ryder, S., Driver, S., 2007, to appear in proceedings of "Galaxies in the Local Volume", Sydney, July 2007 (astro-ph/ 0709.2192 ) Deepest Near-IR Surface Photometry of Galaxies in the Local Sphere of Influence . Kirby, E., Jerjen, H., Ryder, S., Driver, S., The Maximum Baryonic Content of a Galaxy , in preparation . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Publications . Publications overview . ... Parkes radio telescope . Australia Telescope Compact Array . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Volume 14, Number 1 - in print March 1997. ... The file will download onto your desktop and can then be opened in Acrobat Reader. б© Copyright Astronomical Society of Australia 1997 . ...

. Dark ejecta marks an impact near the rim of Ulysses Crater (center), as seen by Mars Global Surveyor in 1999. The small crater doesn't appear in Viking Orbiter images taken in 1976 (left). The dark soil has faded significantly in the image taken this year (right). Scientists estimate the impact occurred in the early 1980s. NASA / JPL / MSS

... Noctis Labyrinthus (Image credit: NASA/JPL/University of Arizona) . ... Gale Crater (Image credit: NASA/JPL/University of Arizona) . ... Crater in Isidis region (Image credit: NASA/JPL/University of Arizona) . ... Meridiani Planum Crater (Image credit: NASA/JPL/University of Arizona) . ... Northern Meridiani (Image credit: NASA/JPL/University of Arizona) . ... Cerebus Fossae (Image credit: NASA/JPL/University of Arizona) . ... Dust dunes (Image credit: NASA/JPL/University of Arizona) . ...

Электронная библиотека астронома-любителя. ... архив RSN . ... Апрель 1998 . ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Galileo Update - April 9, 1998 Привет всем! ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Mars Global Surveyor Update - April 9, 1998 Привет всем! ... The feature known as the "Face on Mars" in the Cydonia region was imaged quite successfully on April 5th and its image was released in raw form and in an enhanced form on April 6th. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... F. Rodionova and E. A. Kozlova . ... Sternberg State Astronomical Institute, 119899, Moscow, Russia; jeanna@sai.msu ru. ... Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... Brown University - Vernadsky Institute Microsymposium 38, October 27-29, 2003, Moscow, Russia . ... Brown University - Vernadsky Institute Microsymposium 40, 2004, Moscow, Russia . ... 1 Sternberg State Astronomical Institute Lomonosov Moscow University, Russia; marss8@mail.ru . ...

... Main . ... The RadioAstron is an international space VLBI project led by the Astro Space Center of Lebedev Physical Institute in Moscow, Russia. ... List of organizations which were taken part in developing of the project and now support the RadioAstron mission is presented here . The RadioAstron Newsletter # 29 , July 18, 2015. RadioAstron Announcement of Opportunity - 4 for observations from July 2016 to June 2017 inclusive. ... 2.7, December 17, 2015 : English version. ... Main ASC . ...