... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... What's winter like in Antarctica? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

SAS home . ... List of SAS threads . This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, and to start a simple analysis tool. ... If the following files are available: a) RGS event list; b) RGS source list, just a single evselect command allows a user to create a light curve, corresponding to the extraction regions in the spatial and order images. set up your SAS environment (following the SAS start-up thread ) . ...

Blackholes2 Forum Message . Forums: . ... Post . ... Im New Here And I Would Like Some Help . ... Post Message | ... Posted by CJ on July 18, 2004 00:07:39 UTC . ... What is the event horizon - sirius_black - August 12, 2004 - 19:14 UTC . Event horizon - mathman - August 12, 2004 - 21:26 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . ... By admin August 17, 2015 Posted in: Armagh Planetarium . ... If you are not a regular pinner, Pinterest is a website where users can share images and media. Inside of just liking and sharing content, users can pin media onto different pin boards, arranged perhaps by theme or content. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Next: Hierarchical Wiener filtering Up: Noise reduction from Previous: The convolution from . Let us consider a measured wavelet coefficient at the scale i . We assume that its value, at a given scale and a given position, results from a noisy process, with a Gaussian distribution with a mathematical expectation , and a standard deviation : . ... We get: . ... This is done from the study of the variation of the noise between two scales, with an hypothesis of a white gaussian noise; . ...

... I see the girls walk by dressed in their summer clothes, I have to turn my head until my darkness goes. ... I look inside my self and see my heart is black, I see my red door and it's happy painted black. ... SONG : Nirvana Ich beschreite dunkle stufen Die den weg zum himmel hinauf nicht finden Euer himmel hat nie existiert Ein fall, die leere, jedoch Die ganze welt ist ein reines nichts Ihr seid schon tot geboren Ich habe mich erhaengt und lebe doch Eurem gott bin ich niemals begegnet ...

... From a Bang to a Whimper - Celebrating Differing Views of the Universe - Tuesday 12 May 2009, Trinity College Dublin . ... Constructing a 16 inch Dobsonian Telescope: Monday 11 May 2009, Ballyclare . тАШ Discover the Stars at ArmaghтАЩ - the second Cross-Border Schools Science Conference, an International Year of Astronomy 2009 event, took place in Armagh on Wednesday 29th and Thursday 30th April 2009. ... International Year of Astronomy, Ireland National Node . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

. The original pictures are taken at: . Biosphere-2, Tucson, Arizona - "Pray" . USS "Little Rock", Buffalo, New York - "The door" . Castelet, Copenhagen - "Mr. Hyde in October" (Oct '94) .

... M81 and M82: GALEX Full Field . ... Intriguing galaxy pair M81 and M82 shine in this full-field view from the orbiting GALEX observatory. GALEX - the Galaxy Evolution Explorer - scans the cosmos in ultraviolet light, a view that follows star formation and galaxy evolution through the Universe. ... The center of the Andromeda galaxy is beautiful but strange. ... As a present to APOD readers, digital imager Mattias Malmer offers a very high resolution view of big beautiful Saturn. ...

... Circle area is proportional to the number of tweets + retweets tweets retweets . Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS221 by number of friends that also tweeted about AAS221 . ... The top/left position is for the user with the largest number of followers, and the bottom/right is for the smallest number of followers. by number of followers that also tweeted about AAS221 . ...

Posting Observations . ... You will need to subscribe to vsnet-acc (to allow you access to post your observations). ... VSNet has several different e-mail sigs, and sub sigs. ... These list are controlled by a software package called " Majordomo ", which allows you to subscribe and unsubscribe yourself from these list with an e-mail message (automated). ... Once you have subscribed to vsnet-acc (which will only send you a welcome message back and nothing else) you can post to the other list. ...

Haebe2014-soc -- . ... To see the collection of prior postings to the list, visit the Haebe2014-soc Archives . ... To post a message to all the list members, send email to haebe2014-soc@eso.org . You can subscribe to the list, or change your existing subscription, in the sections below. ... Your email address: . ... You may enter a privacy password below. ... To unsubscribe from Haebe2014-soc, get a password reminder, or change your subscription options enter your subscription email address: . ...

... To see the collection of prior postings to the list, visit the Astrobib Archives . The current archive is only available to the list members. ... To post a message to all the list members, send email to astrobib@smtp.arcetri.astro.it . ... You may enter a privacy password below. ... Enter your address and password to visit the subscribers list: . ... To unsubscribe from Astrobib, get a password reminder, or change your subscription options enter your subscription email address: . ...

... 2002 July 22 . Open Cluster NGC 6520 from CFHT . ... For the open cluster of stars NGC 6520, every day is like this. On the left of the above picture are many of NGC 6520's bright blue stars. ... On the right is an absorption nebula , molecular cloud Barnard 86 , from which the stars of NGC 6520 surely formed. ... NGC 6520 spans about 10 light years and lies about 5500 light years away toward the direction of Sagittarius . ... About APOD | ...

... the historical dates of the Ukrainian space industry; . ... EXPOSITIONS OF UKRAINIAN SPACE INDUSTRY ENTERPRISES AND PARTNERS ON THE SUBJECT OF . ... Ukrainian Space Industry Investment Potential Exposition: . Investment opportunities in Ukrainian space industry; . ... Investment projects with participation of Ukrainian space industry enterprises; . ... Ukrainian space industry enterprises' securities; . ... Expositions of the Ukrainian Space Industry Leading Enterprises and Partners . ...

METAR Wishlist Following is a list of items that I'd like to add to METAR or that others have requested. ... It'd be nice to have a lot of METARs which encompass various weather condition which we can test against. ... Sites around the world use similar (but slightly different) formats for their METARs. There is always a METAR format the parser will fail on. Calculate Heat Index and/or Wind Chill Both would be fairly easy to do, provided you get the formulas correct. ...

... Research . ... Contact . The Terra Hunting Experiment (Official website) . Project Share-site (members only) . ... Terra Hunting Experiment at the Isaac Newton Telescope . ... Please follow the links on this page to find out the latest information on the project. I am the Project Manager and Chief Systems Engineer on THE@INT, so please contact me if you would like any further information. ...