... NGC 246 and the Dying Star . ... Appropriately nicknamed "the Skull Nebula", planetary nebula NGC 246 really does surround a dying star some 1,600 light-years away in the constellation Cetus. ... Progenitor hypotheses include the winds from bright Orion stars and the supernovas of stars long gone. ... How can gas float above the Sun? ... Galaxy Wars: M81 versus M82 . ... Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. ...

Еще в разделе: (Показать все результаты (>137015) - www.astronet.ru/ )

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2005 December 6 . The Veil Nebula Unveiled . ... At the time, the expanding cloud was likely as bright as a crescent Moon toward the constellation of Cygnus , visible for weeks to people living at the dawn of recorded history . ... The Veil Nebula is also known as the Cygnus Loop . ... About APOD | ... NASA Official: Jay Norris. ...

Еще в разделе: (Показать все результаты (>7132) - www.sai.msu.su/ )

• APOD: 2014 December 9 - The Flame Nebula in Visible and Infrared
• APOD: September 25, 1996 - Bright Stars and Dark Clouds
• APOD: 2012 December 28 - NGC 6188 and NGC 6164

... STScI-PRC00-36 GHOSTLY REFLECTIONS IN THE PLEIADES NASA's Hubble Space Telescope has caught the eerie, wispy tendrils of a dark interstellar cloud being destroyed by the passage of one of the brightest stars in the Pleiades star cluster. ... In 1890, American astronomer E. E. Barnard, observing visually with the Lick Observatory 36-inch telescope in California, discovered an exceptionally bright nebulosity adjacent to the bright Pleiades star Merope. ...

Еще в разделе: (Показать все результаты (>7513) - www.arcetri.astro.it/ )

• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/Reflection.txt
• APOD: 2000 December 29 - The Dark Horsehead Nebula
• Hubble Finds A Bare Black Hole Pouring Out Light

... 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. ...

Еще в разделе: (Показать все результаты (>215) - mavr.sao.ru/ )

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

Еще в разделе: (Показать все результаты (>7134) - www.astronomy.com/ )

• Jupiter brightens the December sky | Astronomy.com
• Gas cloud swings around galactic center black hole | Astronomy.com
• Giant ring of black holes in Arp 147 | Astronomy.com

... HUBBLE UNCOVERS DUST DISK AROUND A MASSIVE BLACK HOLE . Resembling a gigantic hubcap in space, a 3,700 light-year-diameter dust disk encircles a 300 million solar-mass black hole in the center of the elliptical galaxy NGC 7052. ... Because the jets in NGC 7052 are not perpendicular to the disk, it may indicate that the black hole and the dust disk in NGC 7052 do not have a common origin. ... NGC 7052 is located in the constellation of Vulpecula, 191 million light-years from Earth. ...

Еще в разделе: (Показать все результаты (>11300) - www.stsci.edu/ )

• A black hole in the nearby galaxy M32
• Dust disk around a black hole in NGC 7052
• The Ever-changing Circumstellar Nebula around UW Centauri

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on September 11, 2015 | ... Continue Reading.. ... No Comments Peer deep into the constellation Sagittarius and you will find a spectacular young star cluster and its associated stellar nursery. ... Posted on September 14, 2012 | ... No Comments Our Image of the Month was released to celebrate the 22nd anniversary of the NASA/ESA Hubble Space Telescope and is a striking panoramic look at a stellar nursery which is [ ] . ...

Еще в разделе: (Показать все результаты (>2794) - www.armaghplanet.com/ )

• Stellar Nursery NGC 6357: Image of the Month | Astronotes
• Wonders of the December Sky | Astronotes
• M78 off Orion: Bladerunner Nebula? | Astronotes

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

Еще в разделе: (Показать все результаты (>609) - www.mso.anu.edu.au/ )

• Pink Black Holes: Frequently Asked Questions
• The Music of the Spheres
• C/2006 P1 (McNaught)

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

Еще в разделе: (Показать все результаты (>66061) - www.eso.org/ )

• Changes in the Ring Nebula Around SN 1987A | ESO
• The Flames of Betelgeuse | ESO
• Changes in the Ring Nebula Around SN 1987A | ESO United States

... Coalsack Dark Nebula или Black Magellanic Cloud - темная туманность Угольный мешок (Caldwell 99) в созвездии южного полушария Крест / Южный Крест (Crux, Southern Cross, Crucis, Cru) .. ... Просмотр полной версии : Coalsack Dark Nebula или Black Magellanic Cloud - темная туманность Угольный мешок (Caldwell 99) в созвездии южного полушария Крест / Южный Крест (Crux, Southern Cross, Crucis, Cru) .. ... Поиск направления на Южный Полюс через звезды созвездия Крест / Южный Крест (Crux, Southern Cross) .:...

Еще в разделе: (Показать все результаты (>1392) - www.starlab.ru/ )

• Общая Астрономическая Конференция - Показать сообщение отдельно - Coalsack Dark

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Comet C/2011 L4 (PANSTARRS) on 2012 August 9th. ... A new comet, called C/2011 L4 (PANSTARRS), is expected to become visible for a few weeks from approximately 10th March in the western sky after sunset. The comet has come from the Oort cloud, which comprises a vast swarm of comets surrounding the solar system and extending more than halfway to the nearest star, that is more than two light years from the Sun. ...

Еще в разделе: (Показать все результаты (>2466) - star.arm.ac.uk/ )

• Geminid Meteors
• Featured Image | International Year of Astronomy in Ireland | Astronomy 2009
• Terry Mosely's Bulletins

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times mo