... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 November 24 . Mariner's Mercury . ... Explanation: Mercury , the closest planet to the Sun, remains the most mysterious of the Solar System's inner planets. ... The only spacecraft to explore Mercury close-up was Mariner 10 which executed three flybys of Mercury in 1974 and 1975, surveying approximately 45 percent of its surface. ...

... Sun images . ... Sun flares . ... Active areas . November : 2008 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: November 10, 2008 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... 18 Miles From Deimos . 22.12.1996 . ... This image was made when the spacecraft approached to within 18 miles of Deimos' surface. Sun and Winter Solstice 1996 . ... After steadily sinking in Northern Hemisphere skies, the Sun is now at its lowest declination - marking the first day of Northern Winter (but Southern Summer!) The Earth.. ... FYI, the four ultraviolet images used in this mosaic of the nearby irregular galaxy known.. ... A Sky Full Of Hydrogen . ... First page ] Prev. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

The Wind spacecraft. ... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... For additional details and updates, see the home page of the "Wind" mission. Exploration" home page (index) Glossary . ...

... 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 . ...

... VLBI Schedule . LBA Home Page . ... Observers Wiki . ... Main / . ... Meeting ID: 9690 . Chair: Tasso Tzioumis . Attendance: Cormac Reynolds (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards, Jamie Stevens (CASS); Shinji Horiuchi (ATDSCC); Jamie McCallum , Brett Reid, Simon Ellingsen ( UTas ); Oleg Titov(GA) . ... Need ATNF disk space (Chris,Tasso, Shaun) Continuing . ... Pawsey centre access for VLBI and eVLBI (Chris, Cormac) Continuing . ... Chris, Cormac, Tasso) Continuing . ...

Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2015 . ... November . ... November, 2015 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...

ARCSAT ID NUMBER: AS08 DESCRIPTIVE TITLE: Short Term Variability for Stars of Similar Temperatures but Different Luminosities PI: Tiffany Pewett OBSERVER(S): Tiffany Pewett (GSU), Michele Silverstein (GSU), Todd Henry (GSU) UNCERTIFIED/UNTRAINED OBSERVERS: COLLABORATORS: Wei-Chun Jao (GSU) CONTACT INFORMATION: Tiffany Pewett, pewett@astro.gsu.edu, 419-460-0072 TIME REQUESTED: 1. ... December 15 - December 21 One week is requested to observe ~14 stars for photometric variability. ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Brief_I/O VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- positn I Position of the observer in body-fixed frame. u I Vector from the observer in some direction. a I Length of the ellipsoid semi-axis along the x-axis. b I Length of the ellipsoid semi-axis along the y-axis. c I Length of the ellipsoid semi-axis along the z-axis. point O Point on the ellipsoid pointed to by u. found O Flag indicating if u points at the ellipsoid. ... Link to routine source . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... solar system . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observe the Solar System . Astronomy for Kids . ... Asteroid DayУ?т??т??s Don Yeomans: Will asteroid 2013 TX68 strike Earth? ... November 2013 . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... CIMAFITS is the name for the Arecibo FITS-file format. ... This is a list of (fairly) up-to-date documents describing CIMA and CIMAFITS: . The CIMA version history log which is the most up-to-date page listing all changes made to the different versions of CIMA . ... The CIMA user's log which chronologically lists changes made to CIMA that may be relevant to an observer. The CIMA engineering log which lists engineering changes made to CIMA that probably are of less interest to an observer. ...

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

The 14 th International Astronomy Olympiad has been held successfully in Hangzhou (China) on November 8-16, 2009. ... There were 17 teams participated and 1 team observed in the XIV IAO: . ... Sunday, November 8 - Day of arrival . ... Thursday, November 12 - Day of excursions . ... M. G. Gavrilov (IAO Chairman) - Chairman, . J. Zhu (Beijing, XIV IAO-2009 and X IAO-2005 LOC Chairman), . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the International Astronomy Olympiad (IAO) . ...

... The observing season of Jupiter's Galilean satellites (Io, Europa, Ganymede and Callisto) occultations start in Ireland on the 24th of July and end on the 11th of November. The occultations are seen from Earth only once every six years. ... See the page dedicated to the observers who never made such observations. ... I mage: the famous dark spot discovery photo by Anthony Wesley, taken on 19 July 2009 from Australia . ... International Year of Astronomy, Ireland National Node . ...

home publications > mercury . ... Astronomy Beat . ... Nearly four centuries ago, Galileo's simple observations of Earth's planetary sibling, Venus, buoyed the proponents of a Copernican universe. ... The Italian astronomer had settled into a new house in Florence and had begun to observe Venus, which in November 1610 would have appeared as an evening star, bright in the western sky after dusk. ... From these two observations, Galileo inferred that Venus must orbit closer to the Sun than does Earth. ...

... Observatory . ... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2009 > IVOA Interoperability Meeting November 2009 . ... ESO Data . ... The International Virtual Observatory Alliance ( IVOA ) organises two Interoperability meeting per year. ... The IVOA Interoperability meetings focus on the development of Virtual Observatory standards to facilitate access to, and maximize the scientific exploitation of, the worldwide collection of astronomical information. ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

Solar Eruptive Event of 4 November 2001 observed with the SPIRIT Telescope on Board the CORONAS-F Satellite . ... Based on the data of the SPIRIT telescope on board the CORONAS-F satellite in three EUV channels 175, 284, 304 , we have analyzed large-scale manifestations of the post-eruptive so-lar activity followed one of the most considerable and geoeffective coronal mass ejection (CME) in the 23rd cycle which occurred on 4 November 2001. ... Posteruptive arcade on the CORONAS-F/SPIRIT movies at . ...