... 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. ...

... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 â 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

Feb 28 2016 Cepheus - The King IC 455 5mm TV VF,VS,OVAL, NND ,R=F Galaxy S0 Nov 16 2012 18 IC 469 5mm TV Galaxy SAB(rs)ab: VF,VS,OVAL,VEXT, NND ,AV2,R=F Nov 16 2012 18 IC 1396 19mmW 25mmPL Open Cluster II3mn **STARS,BRIGHT, NICE DUST LANES,R=G DECENT NIGHT - MEGASTAR CONTROL Sep 07 2005 8 May 22 2004 8 NGC 40 7.5mmW 7.5mmW H58-4 MB,R,R=G Planetary Neb 3b+3 F,VS,R,VSMBM,*12SP Nov 11 2009 12 Oct 06 ... 13 Jul 24 2006 8" Aug 21 2004 8" PB,CS,R=F CLEAR SKIES - H.H. LITE. ...

... Here are some tips on how to get the best guiding out of our current system. ... NA2 Guider Tips . ... Optical double stars, late-type galaxies, and bipolar PNs may pose a problem for guiding, as will objects where you desire to observe a position away from the bright center (e.g., SNs near bright galaxies). ... Field Star is good if your object is too faint or asymmetrical for Boresight guiding, or if you need the slit to be off-center. ... Use Field Star guiding almost always. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†és . ... les plus belles images de l'Univers d†écrypt†ées pour vous . ... des pages consacr†ées †à la publication de vos photos Mais c'est aussi une vraie communaut†é avec laquelle partager votre passion et nourrir votre curiosit†é. Accueil Toute la violence dòÀÙun amas de galaxies . ... Philippe Henarejos, le 14 mars 2016 . ... 02/02/2016 - Panorama lunaire dans la mer des Pluies . ...

Abstract -- Abundances of heavy elements decreases with increasing galactocentric distance almost in all disk galaxies. ... To explain this gradient in young objects and in the interstellar gas one has to assume that a typical disk galaxy is an open system, i.e. it expels some synthesized heavy elements into the circumgalactic space and/or accretes intergalactic gas with zero metallicity, with rates of both processes depending on the galactocentric distance. ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

... Telescopes ž Binoculars ž Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...

... The Co­Addition Technique Applied to Images of Galaxy Cores W. W. Zeilinger Institut f˜ur Astronomie, University of Vienna, T˜urkenschanzstraúe 17, A­1180 Wien, Austria P. Crane, P. GrosbÜl and A. Renzini European Southern Observatory, Karl­Schwarzschild Straúe 2, D­85748 Garching, Germany Abstract. ... One may therefore take full advantage of the high resolution FOC images by co­adding them with (high signal­to­noise) ground­ based data. ... References Crane, P. et al. ...

... Authors: Sjoert van Velzen et al. arxiv:1511.07746 Ïÿòü íîâûõ áûñòðûõ ðàäèîâñïëåñêîâ ïî äàííûì îáçîðà HTRU íà âûñîêèõ øèðîòàõ: ïåðâûå óêàçàíèÿ íà äâóõêîìïîíåíòíûå âñïëåñêè (Five new Fast Radio Bursts from the HTRU high latitude survey: first evidence for two-component bursts) . Authors: D. J. Champion et al. arxiv:1511.00704 Áûñòðîðàñòóùèå òðàíçèåíòû â ïðîìåæóòêå ìåæäó ñâåðõíîâûìè è óëüòðàìîùíûìè ñâåðõíîâûìè (Rapidly Rising Transients in the Supernova - Superluminous Supernova Gap) . ...

... Ñåãîäíÿ: 10 àïðåëÿ 2016 ã. [SpaceViews] Êîìïàíèÿ PanAmSat, êðóïíåéøèé ìèðîâîé îïåðàòîð òåëåêîììóíèêàöèîííûõ ñïóòíèêîâ, îáúÿâèëà î íàìåðåíèè çàìåíèòü íà îðáèòå ñïóòíèê Galaxy 8-i, â äâèãàòåëüíîé ñèñòåìå êîòîðîãî âîçíèêëè íåïîëàäêè. ... Îäíàêî òîïëèâî â ýòîì äâèãàòåëå çàêîí÷èòñÿ ê êîíöó 2002 ã. È åñëè ê ýòîìó âðåìåíè íå óäàñòñÿ âîññòàíîâèòü ðàáîòîñïîñîáíîñòü èîííîãî äâèãàòåëÿ XIPS, òî ñïóòíèê Galaxy 8-i áóäåò ïîòåðÿí. ... PanAmSat ðàçðàáàòûâàåò ïëàí çàìåíû ñïóòíèêà Galaxy 8-i . ...

... Astronomy news . ... NASA's Spitzer Images Out-of-This-World Galaxy . ... It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white. ... The ring around the black hole is bursting with new star formation. ...

... Ïðåäèñëîâèå ðåäàêòîðà ïåðåâîäà. ... Ïðåäèñëîâèå. Ãëàâà 1. ÃÀËÀÊÒÈÊÈ È ÂÑÅËÅÍÍÀß. ... Òèïû ãàëàêòèê. ... Ïî÷åìó ãàëàêòèêè ðàçíûå. ... ÑÒÐÓÊÒÓÐÀ ÃÀËÀÊÒÈÊ. Êàê ïîñòðîèòü ýëëèïòè÷åñêóþ ãàëàêòèêó? ... ÎÁÐÀÇÎÂÀÍÈÅ È ÝÂÎËÞÖÈß ÃÀËÀÊÒÈÊ. ... Íàáëþäàÿ ýâîëþöèþ ãàëàêòèê. ... ÇÂÅÇÄÛ È ÑÊÎÏËÅÍÈß. ... Ôóíêöèè ñâåòèìîñòè äëÿ çâåçä â ãàëàêòèêàõ. Ñïåêòðàëüíûå òèïû ãàëàêòèê. ... Äâîéíûå ãàëàêòèêè. ... Êàðëèêîâûå íåïðàâèëüíûå ãàëàêòèêè. ... ÑÊÎÏËÅÍÈß È ÑÂÅÐÕÑÊÎÏËÅÍÈß ÃÀËÀÊÒÈÊ. ... Òèïû ñêîïëåíèé. ...

ADC CATALOG HOLDINGS SHORT TITLE LIST March 29, 2002 (adapted from ftp://adc.gsfc.nasa.gov/pub/adc/archives/catalogs/key) Category 1: Astrometric and Positional Data - March 29, 2002 1090 Positions of 502 Stars in Pleiades Region (Eichhorn+ 1970) 1107A Washington Cat Visual Double Stars 1984.0 (Worley, Douglass 1984) 1131A SAO Star ...

Äîáðî ïîæàëîâàòü, Ãîñòü . ...  òåìå  ðàçäåëå Ïî ôîðóìó . ... Òåìû, èíòåðåñíûå âñåì ? Âñåëåííàÿ, æèçíü, ðàçóì (Ìîäåðàòîðû: ivanij , AlexAV , Nucleosome ) ? Galaxy Superstore òîæå õî÷åò çàðàáîòàòü íà Ðàäèîïîñëàíèÿõ . ïðåäûäóùàÿ òåìà ñëåäóþùàÿ òåìà . ... 0 Ïîëüçîâàòåëåé è 1 Ãîñòü ïðîñìàòðèâàþò ýòó òåìó. Ãîñòü . ... Galaxy Superstore . ... òîæå ðåøèëà çàðàáàòûâàòü íà ïåðåäà÷å Ðàäèîïîñëàíèé ! ... Galaxy Superstore LLC . ...

... How to calibrate the energy scale for higher energies of future gratings? Difficult to find astronomical targets with well defined lines. ... Source Energy Flux keV HZ 43 0.2 Bright Sirius B 0.2 HZ43 /10 RXJ1856 1 Faint Simplicity Var WD WD No No No No Yes Yes Extend Lines Point Point Point 1' Point Point Point No Point Point Yes No Yes Yes Yes Yes Point Point , jet Point Cont Cont Cont Cont Lines Cont Lines Lines Lines ...

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 Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution Large-Scale Structure of the Universe Big Bang Cosmology Why is Pluto no longer a planet? ...

... We have compiled the Catalogue of extragalactic supernovae using the GCVS card catalogue. ... Doubtful (?), or rejected (-) SN 8 A1 --- RemFlag [*] The '*' indicates a remark in sn_rem.dat 10- 19 A10 --- Gal Parent galaxy designation 21- 22 I2 h RAh Right Ascension 1950 of Parent galaxy 23- 24 I2 min RAm Right Ascension 1950 (minutes) 25- 28 F4.1 s RAs Right Ascension 1950 (seconds) 29 A1 --- DE- Declination 1950 (sign) 30- 31 I2 deg DEd Declination 1950 of Parent ...

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...