... But on closer inspection they span many different colours, sizes and temperatures : from cool red dwarf stars to blisteringly hot blue supergiants! ... The new stars are a type of pulsating variable star, named this way because their brightness changes as they continuously swell and shrink like a beating heart. ... This was completely unexpected and for now, nobody can explain why these particular stars vary in this way. ... Cool fact :Did you know that our very own Sun is a type of variable star? ...

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• http://www.eso.org/public/news/eso1144/kids/
• http://www.eso.org/public/news/eso1241/kids/
• http://www.eso.org/public/news/eso1249/kids/

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

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• Kepler 36b and c: Too Close for Comfort | Astronotes
• Did a Wandering Star Light Up Ancient Skies? | Astronotes
• The One Year Crew | Astronotes

... September 1, 1999 . 1999 JM8: A Rock Too Close . ... NAIC , NASA . Explanation: Nearly four kilometers across, the huge rock known as 1999 JM8 silently passed only 8.5 million kilometers from the Earth in early August. The small asteroid was completely unknown before May. ... Although 1999 JM8 missed the Earth, thousands of similar but unknown asteroids likely exist that cross Earth's orbit. ... About APOD > . ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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• APOD: 2006 September 5 - Bright Cliffs Across Saturns Moon Dione
• APOD: 2002 December 4 - Moon, Mars, Venus, and Spica
• APOD: 2004 May 29 - Cone Nebula Close Up

... Hale-Bopp and Andromeda . ... Which is closer: the comet or the galaxy? ... In its trek through the inner Solar System, Comet Hale-Bopp has passed nearly in front of the Andromeda Galaxy (M31), seen on the lower left. ... Presently, for denizens of the Earth's northern hemisphere, this bright comet is certainly a lovely and inspiring sight -- visible here crowning the sky above Cortina d'Ampezzo, Italy on March 20. ... A comet as bright as Comet Hale-Bopp is very rare indeed. ... The Weather on Mars...

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... January 8, 2007 . ... SENTINEL CORRESPONDENT . Astronomers at UC Santa Cruz have discovered a surprisingly massive halo of bright, old stars around our galactic neighbor Andromeda, pushing the outer limits of the galaxy to 1.5 million light years, and teaching them how spiral galaxies behave. ... Younger stars may be remnants of a galaxy devoured, but older stars could have formed with the birth of the galaxy. ... http://www.santacruzsentinel.com/archive/2007/January/08/local/stories/03local.htm . ...

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• Andy Fruchter's Homepage
• WFPC2 Instrument Handbook Update

... 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. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bad News:
• Phil Plait's Bad Astronomy: Bad TV

... STScI-PRC99-27 A CLOSER ENCOUNTER WITH MARS Taking advantage of Mars's closest approach to Earth in eight years, astronomers using NASA's Hubble Space Telescope have taken the space-based observatory's sharpest views yet of the Red Planet. ... In these views the north polar cap is tilted toward the Earth and is visible prominently at the top of each picture. ... Dark sand dunes that surround the polar cap merge into a large, dark region called Acidalia. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/RingGalax.txt
• A Bright Ring Of Star Birth Around A Galaxy's Core (PR98-21)
• APOD: April 2, 1999 - Stars of NGC 206

The apparent path of the Sun across the sky. ... The path of the Sun across the celestial sphere is very close to that of the planets and the moon. ... In one year, as the Earth completes a full circuit around the Sun (drawing above), the Earth-Sun line and its continuation past Earth sweep the entire plane. ... Since the Sun and Earth are in the plane of the ecliptic, the line is automatically in that plane too; if the moon is also on the same line, it must be in the plane of the ecliptic as well. ...

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• The Sun
• Precession
• Electric Currents from Space

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Asteroid 2010 SO16 and the Earth follow similar orbits around . the Sun. ... out a horseshoe shape in space, taking 175 years to go from . ... Asteroid 2010 SO16 takes 175 years to make the trip from one end of the horseshoe to the other. ... Currently, three other horseshoe companions of the Earth are known to exist but, unlike 2010 SO16, these linger for a few thousand years at most before moving on to different orbits. ...

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• First Observation of a Close Earth-Approaching Near-Earth Asteroid Using the
• ASTRONOMICAL PHENOMENA FROM MARS
• Doppler Imaging and Flare Activity on HR1099

... The Seasons . ... Section #1 Stargazers and Skywatchers described the observed motion of the Sun across the sky, in different seasons of the year. ... If the Earth's axis were perpendicular to the ecliptic, as in the drawings here, the Sun's position in the sky would be halfway between the celestial poles, and its daily path, seen from any point on Earth, would stay exactly the same, day after day. Each point on Earth would be carried around the axis AB once a day. ... The Sun and Seasons . ...

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• The Path of the Sun, the Ecliptic
• (S-7a) The Black Hole at the Center of our Galaxy
• Close-up of the Aurora

ATNF Annual Report 2000 (submitted) . ... One of the first products is the HIPASS {\it Bright Galaxy Catalogue}, which is a catalogue of the 1000 apparently brightest HI galaxies in the southern hemisphere. ... In Figure 1 we show the spatial distribution of the brightest HIPASS galaxies. ... Figure 4 shows the velocity distribution of the 1000 brightest HIPASS galaxies (orange) compared to the 1000 brightest optical galaxies (selected from the Lyon/Meudon Extragalactic Database using blue magnitude). ...

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• PPTA Dashboard | Projects
• LBA Data Aquisition System
• The ATNF Electronics Group : LBA_DAS

... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...

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• ASP: Beacons in the Gloom
• ASP: Monster Comet Promises Big Show
• ASP: Star Science in the Autumn Sky

... Jupiter without its Southern Equatorial Belt . The Southern Equatorial Belt (SEB) started to fade during the latter part of 2009 and completely disappeared around May of 2010. It is believed that bright ammonia clouds obscure the dark belt at irregular intervals. The SEB previously vanished in 2007. The belt returned around November 2010. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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• Mars pictures from Stellafane by Paul Valleli

... Archives . ... Completeness ? ... Abstract (abridged to the first paragraph) We have extended and improved the statistical test recently developed by Rauzy for assessing the completeness in apparent magnitude of magnitude-redshift surveys. ... specifically independence of the spatial distribution of galaxies within a survey ? ... Moreover, we have also introduced a new test statistic, Tv, defined in terms of the cumulative distance distribution of galaxies within a redshift survey. ... Chandra Blog ...

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• The AstroStat Slog incompleteness
• Bind: Address Already in Use
• Everyday Classroom Tools: Introduction to the Threads of Inquiry

... 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" . ...

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The Andromeda Galaxy (M31) . Hot stars burn brightly in this image from NASA's Galaxy Evolution Explorer, showing the ultraviolet side of a familiar face. At approximately 2.5 million light-years away, the Andromeda Galaxy (M31) is our Milky Way's largest galactic neighbor. ... The bands of blue-white making up the galaxy's striking rings are neighborhoods that harbor hot, young, massive stars. ... When observed in visible light, Andromeda s rings look more like spiral arms. ...

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• Cassini Completes Final Close Enceladus Flyby | Astronomy.com
• Closest, brightest supernova in decades is also a little weird | Astronomy.com
• Astronomers recently discovered that Scholz's star passed close to the Sun

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• ESO Press Release 06/96, 16 February 1996
• Low Surface Brightness Galaxy Gallery
• Energy Conservation: Transportation

... Initially, there are a number of contract requirement tests, which will provide an initial set of required tests: . ... Transmitter running into dummy load on the platform . ... Test signal at 2380 MHz . ... Transmit a signal (tone or spectrum?) and watch leakage into the receiver. ... This test should really be run with different sampling systems: The hardware decoder , the Radar Interface running into a tape recorder, and the Mk IV Pulsar timing machine, used as a fast sampling system. ...

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• AGES - the Arecibo Galaxy Environment Survey
• I-GALFA View of a Galactic Tangent Region
• Why can I only see six of the ``Seven Sisters''?

... Meta Index / Home Page / Source Flagging Algorithms Any source either having a raw count-rate >= 80, or with quality flag bit 4 set (mod-8 pattern) is checked for "close" neighbours, which may be flagged. ... Check each source in the vicinity of the bright source . ... Compute the maximum distance for flagging the source from maxRad = max(exclusionradius, min(70.0, 35.0 * countTable(i) // 80.0) ) If the flagging is done by omdetect, the exclusion radius is determined from the algorithm at the end . ...

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• Comments
• Suppression of detector noise at low energies

... NASA Astronaut (former) . ... Graduated from East Detroit High School, Eastpointe, Michigan, in 1973; received a bachelor of science degree in bioscience from the U.S . Naval Academy in 1977; a doctorate in medicine from Wayne State University in 1981; a master of science degree in systems management from University of Southern California in 1988; a master of public health degree in health policy from the ... Top graduate, Naval Flight Surgeon Training and Naval Safety Officer's School. ...

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• Astronaut Bio: Alfred Merrill Worden
• Astronaut Bio: Dale A. Gardner
• Astronaut Bio: Timothy L. Kopra (10/2014)