... 16.09.2005 . ... Credit: Philippe Moussette Explanation: So far, the Aurora Borealis or Northern Lights have made some remarkable visits to September's skies . ... This colorful example of spectacular curtains of aurora was captured with a fish-eye lens in skies over Quebec, Canada on September 11. ... Seen near Mars (just below and to the right) is the tightly knit Pleiades star cluster. ... Publications with keywords: aurora - Mars - pleiades . Publications with words: aurora - Mars - pleiades . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2005 September 16 . Northern Lights, September Skies . ... Explanation: So far, the Aurora Borealis or Northern Lights have made some remarkable visits to September's skies . ... This colorful example of spectacular curtains of aurora was captured with a fish-eye lens in skies over Quebec, Canada on September 11. ... About APOD | ...

... Sun images . ... Sun flares . ... Active areas . August : 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: September 1, 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 . ...

... 2 April 1999 . The Nobeyama Radioheliograph data show that in the microwave range, besides large-scale trans-equatorial chains (see, e.g., the May 11-15, 1993 and November 1-4, 1993 events), there are also many examples displaying large and strongly evolving "longitudinal" or "internal" chains connecting remote active regions inside an active zone in one (northern or southern) hemisphere (the August 20-September 3, 1998 event). ... Last update: 2 April 1999 . ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

... 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. ...

... Science . ... Science Users Information > Science Publications > Science Announcements . 10 Apr 2016 jump to navigation jump to content . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Phase 3 . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... Science Announcements . ... Published: 18 Jan 2016 . ... The submission deadline for Phase 2 Service Mode observations is 4 February 2016 ; see separate announcement . ... Published: 17 Dec 2015 . ...

... X CB (X) Opening of a set X by a disk B. Closing of a set X by a disk B. Science-Driven Feature Selection (a) (b) Mount Wilson Classification The Mount Wilson classification scheme groups sunspots into four classes based on the complexity of magnetic flux distribution in associated active regions [1]: class : groups dominated by a single unipolar sunspot class : a pair of sunspots of opposite magnetic ... Convex hulls are utilized to measure polarity mixture in (j). ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Active Algol Binary KZ Pavonis . ... The Algol type eclipsing binary KZ Pav has been observed over one complete orbit (0.95 days) with the Australia Telescope Compact Array. ...

. Last registration to attend . August 1 . Submission of abstracts (0.5p) . September 1 . Schedule of the Symposium . September 15 . The day of arrival . October 15 . Invited reviews and reports . October 16-19 . The day of departure . October 20 . Submission of contibutions (4pp) . November 1 .

... STScI-PRC00-37 HUBBLE CAPTURES AN EXTRAORDINARY AND POWERFUL ACTIVE GALAXY Resembling a swirling witch's cauldron of glowing vapors, the black hole-powered core of a nearby active galaxy appears in this colorful NASA Hubble Space Telescope image. ... The larger outer ring extends off the image and is in the plane of the galaxy's disk. ... The black hole and its accretion disk are expelling gas out of the galaxy's disk and into its halo (the region above and below the disk). ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...