... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 June 2 . Polaris and Comet Lovejoy . ... Explanation: One of these two bright sky objects is moving. On the right is the famous star Polaris. Although only the 45th brightest star in the sky, Polaris is famous for appearing stationary. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

Astronomy Picture of the Day . ... On the right is the famous star Polaris. Although only the 45th brightest star in the sky, Polaris is famous for appearing stationary. ... This is because the northern spin pole of the Earth -- called the North Celestial Pole -- points near Polaris . ... Officially designated C/2014 Q2 (Lovejoy) , this disintegrating snowball is on a visit from the outer Solar System and will only appear near the North Star for a few more weeks. ... Polaris: The North Star ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... 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. ...

... This is a progress report on a continuing survey of 20 QSO host-galaxies by the FOC IDT team using the PC. ... 1995, Paper 1), two radio, one optical and one X-ray QSO. ... By chance the next three objects observed, and reported on here, all happened to belong to that very rare class of IRAS-selected QSOs. ... 1988). ... In this picture these IRAS QSOs must be young. (e) Seven out of seven of our HST QSOs and a large proportion of the Bahcall et al. (1994,1995) objects appear to be mergers. ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Accidental Astrophysics: The Devil's In the Magnitudes, Part II . ... The star second to the Sun in brilliance is Sirius. ... Recall the magnitude system, passed down to us through a hundred generations of sky watchers, as a means of quantifying stellar brightness ("Accidental Astrophysics," May/June, p. 9). ... Yes, it is a magnitude difference, but that difference is due to the distance between us and the star. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. ... The Orion Nebula from VLT . ... But this image , a representative-color composite of 81 near- infrared light images taken with VLT's ISAAC , shows the Orion Nebula to be a busy neighborhood of young stars, hot gas, and dark dust. ... The eerie blue glow surrounding the bright stars pictured here is their own starlight reflected by nearby dust . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 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 . ... Submit a letter to the editor . ... Astronomy Letters . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... The Einstein On-Line Service (EOLS) is a simple menu-driven system which provides an intuitive method of querying over one hundred database catalogs. In addition, the EOLS contains over 30 CD-ROMs of images from the Einstein X-ray Observatory which are available for downloading. The EOLS provides all of our databases to the NASA Astrophysics Data System (ADS) and our documents which describe each table are written in the ADS format. ... The EOLS provides three options for data retrieval. ...

... The HH flow associated with young stellar object HL Tau has an exciting history and even until now the origin of some its features is not clear yet. ... Knotty structures of Herbig-Haro jets are common phenomena and knowing the origin of such structures is essential for understanding the processes of jet formation. ... In the flow detected compact knots with high (-150 km/s) and bow shape structures in front of those, with low radial velocities (-50 km/s). ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Sequence of four video frames captured at 01:05 BST at Armagh Observatory on the night of the 24/25th July 2013, showing the onset, development and demise of the sprite. ... Unlike common lightning discharges, which often jump between clouds or between the clouds and the ground, sprites are associated with similarly powerful electrical fields that occur high above the clouds of the EarthтАЩs atmosphere. ...

The coordinates, diameters, altitudes and morphological features of all the craters of Mars exceeding 10 km in diameter, totaling 19 308, are compiled. ... The catalogue is intended for use by investigators of Mars, students, in comparative planetology and in the selection of craters for naming. ... 1 one terrace . 2 many terraces . ... 6 many hills and one ridge . 7 one hill and many ridges . ... 1 one crater . 2 many craters . ... Sample craters of different morphological categories . ...

Joshua Tusin, Director of Public Relations for JYI , sent us the following description of the journal. ... Feature Editors . ... Inquire with the Director of Public Relations, Joshua Tusin, by e-mailing him at: tusin@jyi.org . The Journal of Young Investigators ( JYI , www.jyi.org) is an on-line science journal dedicated to publishing excellent undergraduate research papers and feature-type science articles covering all fields of science. ... Journal of Young Investigators (http://www.jyi.org) . ...

... Observatory . ... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > My data shows an extended, bright feature - what can this be? ... Observing Facilities . ... Observing with ESO Telescopes . ... Science Data Products Forum . ... ESO Data . ... You might also want to check http://www.eso.org/sci/observing/PublicSurveys/useful_links/OmegaCAM_images.html where we provide a collection of example OmegaCAM images, illustrating some special data features. ...

User has a possibility to add new string (row) with observed data to the table, to insert string between existing ones, to edit observed data or to delete some strings. To add string select task item in menu bar ( O – C , Identification, Plates, or Observatories ) and then Add String in drop-down menu. ... Marked strings will disappear. ... To select a place for inserting just mark some string, select Paste item in drop-down menu, and block copy appears above this string. ...

ISSN 0236-2457 . Sincerely yours . Georgij Rudnitskij . Editor-in-Chief . gmr@sai.msu.ru . visit since March 12, 2010.

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) METEOR OBSERVATIONS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM S. Karpov, 1, 3 N. Orekhova2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Ivanov,2 E. Katkova,2 A. Perkov, and V. Sasyuk3 RESUMEN 2 Favor de prop orcionar un resumen en espanol. ... The faintest detected meteors has the peak brightness about 10 mag, while the ma jority - from 4 to 8 mag. ... 2010; Karpov et al. 2013; Beskin et al. ...

Check out the new images (Jan 18-25) and (Jan 26-Feb 05) of the comet by Rob McNaught. ... Every few years a comet becomes bright enough to be easily seen with the naked eye but only every decade or so are these comparable with comets like Halley. ... Before Jan 13, the comet is not visible in the Australian sky after sunset. ... SOHO images . ... On Jan 12 at approximately 09:00 UT (8pm NSW time), comet C/2006 P1 McNaught appears at the 11 o'clock position in the images. ... STEREO images . ...

I-GALFA Reveals Dynamic Events in Our Galaxy . S. J. Gibson, J.-h. Kang, B.-C. Koo, June 2009 . ... The white stripe marks the Galactic equator ( b=0 ). ... I-GALFA three-color H I image for FVW40.0+0.5, integrated over v lsr = -100 to -90 km/s ( red ), -90 to -80 km/s ( green ), and -80 to -70 km/s ( blue ). ... I-GALFA data reveal a complex tracery of loops, filaments, and blobs hundreds of parsecs above and below the Galactic plane, with isolated compact clouds extending even higher. ...