... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

. Go Here for Hubble Ultra Deep Field . ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... This beautiful, bright, spiral galaxy is Messier 64, often called the Black Eye Galaxy or the Sleeping Beauty Galaxy for its heavy-lidded appearance in telescopic views. ... Comet PANSTARRS and the Andromeda Galaxy . ... Coincidentally, both comet and galaxy appear now to be just about the same angular size. ... For northern hemisphere skygazers, fading Comet PanSTARRS (C/2011 L4) still hangs above the western horzion, after sunset but before moonrise in the coming days. ... 2011 2012 . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Milky Way . Stars . ... Monthly Sky Notes . ... June . ... This red supergiant is the brightest star in the constellation Scorpius and is of awesome size. ... Returning to Vega (which will be the pole star in about 12 000 years from now), follow an imaginary line between it and Arcturus, this line will cross two more constellations, faint and sprawling Hercules and that celestial smile Corona Borealis. ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Women in Astronomy . ... Science Fiction with Good Astronomy . ... Dramatic, complex history and future of the battle between dark matter and regular matter life-forms in the universe. ... 1996, Ace)  Complex hard-science novel by a Canadian amateur astronomer with intriguing ideas about dark matter and even dark matter life forms. back to topic list . ... The Milky Way becomes an active galaxy, but life on Earth is saved by a higher intelligence...

Next: Stealth Comets Up: W.M. Napier Previous: W.M. Napier Contents . ... If material ejected from the Earth contains microorganisms and spores, the question arises whether life may be carried from planet to planet within the solar system. ... However, the solar system is tiny on the scale of the Galaxy, and it has generally been thought that the transfer of life between stars is impossible -- the microorganisms would be destroyed by cosmic rays, ultraviolet light and so on. ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

... 2009 December 16 . Comet Hyakutake Passes the Earth . ... Explanation: In 1996, an unexpectedly bright comet passed by planet Earth. Discovered less than two months before, Comet C/1996 B2 Hyakutake came within only 1/10th of the Earth-Sun distance from the Earth in late March. At that time, Comet Hyakutake, dubbed the Great Comet of 1996 , became the brightest comet to grace the skies of Earth in 20 years. ... New Mirror: APOD now available in Romanian from Romania . ... About APOD | ...

... ROTATION CURVE: When studying spiral galaxies it is invariably found that the stellar rotational velocity in the disk remains constant, or "flat", with increasing distance away from the galactic center. ... The rotation speed of the stars in galaxies is found NOT to decrease with increasing distance from the galactic center (see emission lines in the spectrum), implying that the overall mass distribution of the galaxy is different from the light distribution. ...

The Future of Single Dish Radio Astronomy Robert L. Brown N AI C Robert L. Brown 2005 NAIC/NR AO Astronomy Single Dish Summer School 1 "FUTURE" Year 2001 Vision* 1. ... Astronomy and Astrophysics in the New Millennium, Astronomy and Astrophysics Survey Committee, Board on Robert L. Brown 2005 NAIC/NR AO Astronomy Single Dish Summer School 2 1 "Future" Year 2003 Vision* 1. ... Robert L. Brown "Future" Year 2003 Vision* 7. ... Robert L. Brown A Science-Driven Future of Single Dish Radio Astronomy 4. ...

... ESO, the European Southern Observatory . ... ESO Acronyms . ... Quasars and Black Holes . ... Black Hole at the Centre of our Galaxy . ... This annotated composite image shows the motion of the dusty cloud G2 as it closes in, and then passes, the supermassive black hole at the centre of the Milky Way. These new observations with ESOтАЩs VLT have shown that the cloud appears to have survived its close encounter with the black hole and remains a compact object that is not significantly extended. ...

HST Call for Proposals and HST Primer for Cycle 24 . ... Hubble Space Telescope Call for Proposals for Cycle 24 > Appendix B: Scientific Keywords . ... The Tables in this Appendix list the Scientific Keywords that are valid for use in the Phase I proposal template (see Section 8.9 ). Table B.1: Solar System Keywords . ... PLANETARY ATMOSPHERES . ... GIANT PLANETS . ... Table B.2: Extrasolar Planets and Planet Formation Keywords . ... EXOPLANET HOST STARS . ... Table B.5: Galaxies Keywords . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

... A homogeneous chemical analysis of the inner Galactic disk from the first data release of Gaia-ESO . ... Gaia-ESO is a public spectroscopic survey designed with this goal in mind. ... These first results highlight the potential of the Gaia-ESO survey to explore areas of the Milky Way still poorly studied, such as the inner disk, and to give new constraints on Galactic chemical evolution models. ... Map of observed targets of the first data release of the Gaia-ESO Survey. ...

... The Impact of HST on European Astronomy . ... These range from the study of nearby planets, the processes of star and planet formation, the stellar and interstellar components of galaxies, the discovery that most, if not all, galactic nuclei harbor a massive black hole that profoundly affects their evolution, to the realisation that the universe as a whole is undergoing acceleration as a result of a yet unknown form of dark energy . ... Formation, structure and evolution of galaxies . ...

B?rbel Koribalski (ATNF) + HIPASS and ZOA teams . Velocities are color coded in bins of 1000 km/s: . dark blue . ... light blue . cross . 1000 . green . ... HVCs? ... All the new galaxies, most of which are at |b| All the new galaxies are marked in blue, HI clouds in green and HVCs in orange. (plot by Malte Marquarding, aips++). bkoribal @ atnf.csiro.au ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

Here we have an images of Comet C/1998 U5 (LINEAR) passing NGC 7080 showing SN 1998ey on Dec.12 only a week after Ron Arbour discovered the SN. Jack was unaware that it was over the galaxy let alone that it showed the SN! . Image by Jack Schmidling . For more informat on comets, check the Comet chasing . Back to 1998ey . Back to 1998 Supernovae . Back to Bright Supernovae David Bishop Last modified: Wed Jul 18 12:47:37 EDT 2001

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...