... 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. ...

logN-logS A Measuring Stick for the Universe Vinay Kashyap (CfA) Tuesday , November 9, 2010 log10(N S)-log10(S) cumulative number of sources detectable at a given telescopic sensitivity S = [ergs s-1 cm-2] N = number of sources brighter than S Tuesday , November 9, 2010 simple example uniformly distributed source population all sources have same intrinsic luminosity for telescope sensitivity S, ...

New England observer Lew Gramer, fresh back from his mid-November fish observing and meteor-catching expedition in South Florida, reports that December also promises to be a great month for celestial sky-sparks!" ... Other showers adding to the mix this month include several very minor showers, such as the Chi Orionids (3 Dec), Monocerotids (9 Dec) and Sigma Hydrids (12 Dec), which usually contribute no more than 2 or 3 meteors per hour during even post-midnight observing this month. ...

... It's a Meteor Shower Smaller than grains of sand, meteors vaporize in a bright streak of light as they hit Earth's atmosphere. Meteor showers come from comets, but the sporadic meteors on other nights are mostly asteroid bits. ... Meteor Showers Come From Comets Jupiter Earth Sun Comet Mercury Tips: A bright Moon can wash out meteors, making them hard to see. ... But the comet bits hit Earth's atmosphere so fast, the pieces vaporize in bright streaks -- making a meteor shower! ...

Up: The Second EGRET Catalog Previous: References . ... Maps of locations of four bright sources in this catalog. ... Maps of locations of four sources in this catalog whose 95% error contours are not well represented by an ellipse. ... Map showing upper limits for sources at any position in the sky, in units of photons(E > 100 MeV) cm s , based on the EGRET summed Phase 1 + Phase 2 exposure. As noted in the text, upper limits within 1 of catalog sources should not be taken from this figure. ...

. Date, from: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . to: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . Longitude, from: . to: . Latitude, from: . to: . Area, from: . to: . Brightness, from: . to: .

... Outreach . ... I'm a PhD student at the Australian National University's Mt Stromlo observatory and am part of the Australia Telescope National Facility (ATNF) graduate program. I study the properties on nearby galaxies and investigate the evolution of the local universe. ... I run the RSAA Student Outreach Group which invites school children to participate in free astronomy outreach evenings. ... Copyright 2007 Emma Kirby. ... All Photos were taken by Emma Kirby unless otherwise stated. ...

... AGU Fall Meeting, 15-19 December 2008, San Francisco, poster . Zotov L., Shum C.K, Singular spectral analysis of GRACE observations Climate, Statistics, and Satellites, a symposium in honor of Jerry North , June 8-10, 2009, Presidential Conference Center, Texas A University, talk . 2009 Fulbright Visiting Scholar Conference, 19-21 April 2009, Washington DC . ... Zotov L., Shum C.K., Singular spectrum analysis of GRACE observations, 9th Gamow summer school 17-23 August, 2009, Odessa, Ukraine . ...

... Magnetic storms online . ... Geomagnetic activity forecast . ... November : 2015 . ... Magnetic storm of level G1 (minor) are expected . From 2 November 2015 to 28 November 2015 the following magnetic storms and disturbances are expected: . ... November 03, 2015 geomagnetic storm of level G2 (moderate) . ... November 09, 2015 geomagnetic storm of level G1 (minor) . ... November 02, 2015 geomagnetic storm of level G3 (strong) 2 November 2015 - 28 November 2015 . 01.11.2015 . ...

... Bad Astronomy . ... Bad Astronomy: The North Star, Polaris, is a very bright star. Good Astronomy: Polaris is a middling-bright star, easily missed. ... He said it was close to Polaris, the North Star, but he also said it was in the East. ... It's natural, I suppose, to think that such an important star should be bright, but really, that's a conceit, like thinking that the Earth is at the center of the Universe. If more people knew just why Polaris is the North Star, this Bad Idea would stop. ...

Friday, November 18th, 2011 . 17-21 октября 2011 в ИФЗ РАН прошла Вторая молодежная тектонофизическая школа-семинар (http://tph_2011 NULL .ifz NULL .ru/) , на котором наша лаборатория приняла участие. ... You are currently browsing the Лаборатория лазерной интерферометрии blog archives for November, 2011. ... Наши публикации . ... Публикации за 2010 . ... Публикации за 2012 . ... January 2013 . ... June 2012 . ... Лаборатория лазерной интерферометрии is proudly powered by WordPress . ...

... Recent Topics . ... MAO main . ... November Issue: Master Builders . ... Тема: November Issue: Master Builders . To view this email as a web page, go here. links.email.scientificamerican.com/servl.. NzgyNzc2MzQ2S0 =0 . ... The construction of Egypt's most famous monument spawned a social organization that changed the world links.email.scientificamerican.com/ctt?k... ... Check out our NEW Products! links.email.scientificamerican.com/ctt?k... ... MAO NASU . ...

The scorpion. This constellation lays between the Marksman and the Scales in the Milky way. The Godness hunter Artemida sent a scorpion to kill Orion. Arat writes: "When the Scorpion rises in the East, Orion makes hust to disappear in the West". The Sun comes into Orion constellation in 22th of November when it passes to nonzodiac constellation Snakecarrier on 20 days. ... Antares of Scorpion means in Greek a rival of Ares (of Mars). This bright star really looks like Mars. ...

First Russian-French workshop on Mathematics of Communications took place from November 3 to November 6, 2003 in Moscow, Russia. The workshop was organised by the French-Russian laboratory LIFR-MIIP of CNRS (France) and Independent University of Moscow (IUM) with the participation of the Embassy of France in Moscow, Institute of Information Transmission Problems of RAS, Centre de Physique Th?orique and Institut de Math?matiques de Luminy. ... V.I. Levenstein (Institute of Applied Mathematics), . ...

The Dying Hobo Behind a Western water tank a dying hobo lay, Inside an empty box-car, one cold November day ; His comrade sat beside him with low and drooping head, Listening to the dying words this poor dying hobo said. I am going to a better land, where everything is bright Where hand-outs grow on bushes, and you can sleep out every night. Tell my sweetheart back in Denver no more her face I'll view For I have caught the fast train and now I'm going through." ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

... Home Education Classes AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ...

December 12, 2011 ================= Self-guiding, adaptive optical, and dual-CCD support for SBIG has been removed. See notes on SBIG support. November 29, 2012 ================= Support for Apogee's preflash option is being added to help remove the latent bulk image artifact that is present in images on Kodak sensors when they have been exposed to a bright infrared source. ... Until we know more, it is best not to use it for precision photometry unless you have tested it in your application. ...

August . ... October . November . December . January . ... Period . 2003B . ... Dark . ... Bright . ... IKI . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... November 9, 10, 11, 12 and 13 . December 6, 7, 8 and 9 March 24, 25, 26, 27 and 28 . ... December 3, 4 and 5 February 13, 14 and 15 . ... December 10, 11, 12, 13 and 14 . Incoherent Scatter Radar ionospheric parameters measurements are carried out on coordinated days determined by the International Geophysical Calendar. ...