The Discovery of the Galilean Satellites . ... Probably the most significent contribution that Galileo Galilei made to science was the discovery of the four satellites around Jupiter that are now named in his honor. Galileo first observed the moons of Jupiter on January 7, 1610 through a homemade telescope. He originally thought he saw three stars near Jupiter, strung out in a line through the planet. ... Galileo's Observations of Jupiter's Moons . ... Jupiter . ...

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

Large sunspots were occasionally seen far in the past without any instruments, when the sun was dimmed by thick haze, but not much was remembered of those observations. ... Sunspot Cycle (1850 - 1975) . One who was greatly influenced by Schwabe's discovery was an English gentleman of independent means, Richard Christopher Carrington , who devoted himself to the study of sunspots. ... Carrington had seen a flare, of the rare variety that is visible in white light (only about 50 are known). ...

... The SMS program is a critical endeavor to investigate whether the predictions of standard cold dark matter cosmology are consistent with the observed matter distribution in the Milky Way halo. It is the deepest, most extended search for optically elusive dwarf satellite galaxies and tidal streams to date, covering the entire Southern hemisphere. ... However only a few dwarf satellites have been found around the Milky Way to date - 22 dwarfs compared to 500-10,000 predicted by theory (Klypin et al. ...

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): . ...

... Click on an object in the solar system or choose from the list at left to learn more . The Arecibo Observatory planetary radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth objects. ... The Solar System Studies group is a department of the Arecibo Observatory, which is an NSF facility operated under cooperative agreement by SRI International, Universities Space Research Association (USRA), and la Universidad Metropolitana (UMET). ...

... Gamma-Ray Burster . ... Worse yet, it is even unclear whether these high energy explosions originate in our own Galaxy or in distant galaxies across the Universe. ... Did this Gamma-Ray Burst originate in the distant galaxy? ... 2007 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... Публикации с ключевыми словами: гамма-всплески - рентгеновские лучи - далекие галактики . Публикации со словами: гамма-всплески - рентгеновские лучи - далекие галактики . ...

... GAMMA RAY BURSTS . with guest Dr. Dale Frail from National Radio Astronomy Observatory . ... Gamma-Ray Bursts . A Collection of Resources to Get Behind the Headlines . Andrew Fraknoi (Foothill College & ASP) . ... This is a fine introduction to violent events in the universe by a noted astronomer, with a good section on gamma-ray bursts. ... On the Swift mission and what it is teaching astronomers about gamma-ray bursts. ... http://imagine.gsfc.nasa.gov/docs/science/know_l1/bursts.html . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 19, 1997 . Gamma Ray Burster . Credit: BeppoSAX Team , ASI , ESA . Explanation : What and where are the Gamma-Ray Bursters ? ... Worse yet, it is even unclear whether these high energy explosions originate in our own Galaxy or in distant galaxies across the Universe. ... Did this Gamma-Ray Burst originate in the distant galaxy? ...

... Southern . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Discovery and characterisation of Pre Main Sequence stars in southern star forming regions . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Using a robust method to identify Pre-Main Sequence (PMS) stars through their photometric excess in the Hн± band, we have recently studied the star formation history in several star burst clusters in the Galaxy, Small and Large Magellanic Clouds. ...

Lab . Main page News People . ASA . Master . Master net Homepage . ... Lomonosov Moscow State University Sternberg Astronomical Institute . ... MASTER . ... Lomonosov (ShOK) . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . People, who work in lab . Latest news and news archive . ... 04.01.2012 . ... All news ...

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Top Ten Discoveries of the Phoenix Misson to Mars? by Suzanne Young . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Observez le dernier vol de Discovery . ... Pour les prochains jours, le sp†йcialiste belge de l'observation des satellites Alphonse Pouplier a g†йn†йr†й une liste d'horaires pour les principales villes . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... A number of interesting discoveries of magnetic fields in several classes of stars have been announced, many of which obtained at a 3 level; some of the discoveries are confirmed by measurements obtained with other instruments, some are not. ... We investigate the reasons for the discrepancies between the results obtained with FORS1 and those obtained with other instruments. ... Results. ...

... Tonight's Sky . ... PHASE т?? ... Supernova showered Earth with radioactive debris . ... Astronomy for Kids . ... Swift satellite records early phase of gamma-ray burst . ... United Kingdom astronomers, using a telescope aboard the NASA Swift satellite, have captured information from the early stages of a gamma-ray burst - the most violent and luminous explosions occurring in the universe since the Big Bang. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Meade Instruments Corporation . ... Refracting telescopes (Meade Models NG-60, NGC-60, DS-2070AT, ETX-70AT, LXD55-AR5, LX55-AR6 ) and mirror-lens telescopes ( ETX-90AT, 105AT, 125AT, LXD55-SC8, 8LX90, LX200 GPS Series ) are generally more versatile in a wide array of land and astronomical applications. ... The intermediate-level observer, or the non-casual telescope user who wishes to purchase one telescope for a lifetime, should consider a Meade Model LXD55 series, 8LX90, or LX200GPS. ... Meade 4M ...

... 29a. Satellite looking up . 29c. Satellites probing around . ... The US Air Force furthermore sponsors polar satellites of the DMSP series, scanning the cloud cover of the polar region and also studying ions and electrons of the magnetosphere. ... The Canadian satellite Alouette in 1962 bounced radio signals off the top of the ionosphere, and UARS (Upper Atmosphere Research Satellite) has studied the Earth atmosphere. ... Next Satellite Class: #29c Those observing local conditions . ...

Next: The Nature letter of Up: The discovery of pulsars Previous: Neutron stars . Three sources of scintillation of radio sources: . ... interplanetary gas . ... Hewish and Bell [ 14 ] observed the recordings . ... Figure 2: Discovery observations of the first pulsar. (a) The first recording of PSR 1919+21; the signal resembled the radio interference also seen on this chart. (b) Fast chart recording showing individual pulses as downward deflections of the trace. ... Jon Bell . ...

... Why does X-ray astronomy require satellite telescopes? ... That is why scientists use space based satellites to record and observe data from X-ray sources. ... It primarily observes X-ray sources and has a moderate imaging capabilities. ... X-rays (because of their short wavelengths) , as opposed to visual light, can penetrate through otherwise opaque objects e.g. bones X-rays can observe celestial objects that emit shorter wavelengths such as galaxies , quasars, and black holes. ... X-ray image . ...

... This paper presents the TAROT-2 project an automatic, autonomous observatory. Its main objectives are the study of cosmic Gamma-Ray bursts and the detection of extrasolar planets. ... 1999; Bo?r et al. 2000), an automated telescope mainly devoted to the observation of cosmic gamma-ray bursts. This telescope has achieved a high degree of autonomy, being able to process the requests, establish its own schedule, and process the observations to produce a source list matched with several catalogs. ...