... 2006 April 6 . Unusual Bright Soil on Mars . Credit: Mars Exploration Rover Mission , Cornell , JPL , NASA . Explanation: What is this bright soil on Mars? Several times while rolling across Mars, the treads of the robotic rover Spirit have serendipitously uncovered unusually bright soil. ... The physics and chemistry instruments on Spirit have determined the soil, shown above , contains a high content of salts including iron-bearing sulfates . ... About APOD | ...

... Night Lightning on Jupiter . ... Credit Copyright: The Galileo Project , NASA Explanation: Why is there lightning on Jupiter ? ... To create lightning , charges must first separate inside a cloud. On Earth , drafts of colliding ice and water droplets usually create this charge separation, but what happens on Jupiter ? ... Clouds are dimly lit by sunlight reflected off Jupiter's moon Io . ... Publications with keywords: Jupiter - lightning . Publications with words: Jupiter - lightning . ...

... Ignacio Ugarte Urra's PhD thesis topic is the investigation of coronal bright points. In his first paper (in collaboration with Gerry Doyle and Maria Madjarska) he investigated the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipole during 3 days of almost continuous observations. ... In general the bright point has a radiance 4 times higher than that of the network. ...

... If I need to observe a field containing bright stars, do I risk damage to the NICMOS detector by saturating it? ... NICMOS . ... Detectors . ... Observing Strategies . ... A.: The NICMOS Instrument Science Reports Number 24 and Number 23 present results of the analysis of persistence from On-Orbit data and Thermal Vacuum data. ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... October 18, 1999 . NGC 3603: An Active Star Cluster . ... Explanation: NGC 3603 is home to a massive star cluster, thick dust pillars, and a star about to explode . The central open cluster contains about 2000 bright stars, each of which is much brighter and more massive than our Sun . ... These stars are less massive than our Sun, demonstrating that great numbers of low-mass stars also form in active starburst regions . ... About APOD > . ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

Astronomy Articles . Articles | ... Moon | ... Astronomy Binoculars - The Skies The Limit - by Scott Gray, September 2006 . ... Astronomy Terms - To Help You Study The Universe - by Scott Gray, October 2006 . ... Himalia is the only moon other than Europa, Ganymeade, Callisto and IO visible with small telescopes. ... The Harvest Moon refers to the Full Moon that comes closest to the autumnal equinox, or the first day of autumn. ... Think the study of stars is best left to professional astronomers? ...

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... Deutsch . ... Did you know that sugar contains some of the essential ingredients for life? ... However, sugar is made up of a simple recipe of chemicals called carbon, hydrogen and oxygen. ... Now, using a powerful telescope, a team of astronomers has spotted sugar in the gas surrounding a young star that is like our Sun. ... And since sugar contains the ingredients for life, finding it near a Sun-like star is very exciting maybe life could exist on another planet in the Universe! ...

IMACS MASKS FOR CHAMPLANE RUN JUNE 6-9 2005 updated (17/05/05) zip file containing 16 masks (.SMF format) replacement masks (20/05/05) zip file containing 4 masks (.SMF format) . 17, exposure time 4x30 min bright = mag Field centers taken from .SMF files: field ra(J2000) dec(J2000) POS FLIP N GC Mosaic fields covered Observed? ... Here is an observing elevation chart for this run on June 7 2005. postscript . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... We have observed 210 Seyfert galaxies and 81 starburst galaxies with the 275-km Parkes - Tidbinbilla Interferometer (PTI) at 2.3 GHz (Norris et al., ... This result shows a significant difference between the two samples, and shows clearly that, although a few starburst galaxies may contain a buried AGN, the majority do not. ...

... Stars . ... Cepheid variable stars have been known since the 18th century. ... Regularly brightening to a peak over days, weeks or months before fading these variable stars were remarkable curiosities to astronomers in past centuries.€а The term Cepheid is taken from the star Delta Cephei in the constellation of Cepheus, which was identified as variable€а in 1784 by the teenaged prodigy John Goodricke (1764-96). ... Tweets that mention Cepheids: Inconstant Stars which break the rules | ...

... We present the ROSAT All-Sky Survey Bright Source Catalogue (RASS-BSC, revision 1RXS) derived from the all-sky survey performed during the first half year of the ROSAT mission in 1990/91. 18,811 sources are catalogued, with a limiting ROSAT PSPC countrate of 0.05 cts/s in the 0.1-2.4 keV energy band. ... Broad band images are available for a subset of the flagged sources. ... Retrieving the full catalogue The ROSAT All-Sky Survey Bright Source Catalogue can be retrieved via your WWW browser: 1. ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

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 . ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

Definitions of Magnitudes and Surface Brightness 1 The magnitude system 1.1 Apparent magnitude Astronomers are stuck with the antiquated old system of magnitudes and so a clear explanation of what this system is and how it relates to more sensible units is important. ... 1.2 Absolute magnitude Absolute magnitude is a logarithmic luminosity scale. ... One usually goes by the round about process of referring to the absolute magnitude of the sun. ... Magnitudes and surface brightness 6/6 ...

This composite image contains three distinct features: the bright star-filled central region of galaxy NGC 6946 in optical light (blue), the dense hydrogen tracing out the galaxy s sweeping spiral arms and galactic halo (orange), and the extremely diffuse and extended field of hydrogen engulfing NGC 6946 and its companions (red). ... D.J. Pisano (WVU)/B. Saxton (NRAO/AUI/NSF)/Palomar Observatory тАУ Space Telescope Science Institute 2nd Digital Sky Survey (Caltech)/Westerbork Synthesis Radio Telescope ...