... 3.10.2006 . ... The large emission nebula dubbed IC 1805 looks, in whole, like a human heart . ... The red glow and the larger shape are all created by a small group of stars near the nebula's center . A close up spanning about 30 light years contains many of these stars is shown above . ... The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia . ... Publications with keywords: emission nebula . Publications with words: emission nebula . ...

Еще в разделе: (Показать все результаты (>139924) - www.astronet.ru/ )

• Bright from the Heart Nebula
• IC 1805: The Heart Nebula in HDR
• NGC 2244: A Star Cluster in the Rosette Nebula

... 2015 October 27 . Bright from the Heart Nebula . ... Explanation: What's that inside the Heart Nebula? ... The nebula glows brightly in red light emitted by its most prominent element: hydrogen . ... In the center of the Heart Nebula are young stars from the open star cluster Melotte 15 that are eroding away several picturesque dust pillars with their energetic light and winds. ... The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia . ... About APOD | ...

Еще в разделе: (Показать все результаты (>6890) - www.sai.msu.su/ )

• APOD: 2006 October 3 - Light from the Heart Nebula
• APOD: 2011 October 25 - IC 1805: The Heart Nebula in HDR
• APOD: October 14, 1996 - Bright Stars, Dim Galaxy

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 more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

Еще в разделе: (Показать все результаты (>417) - zebu.uoregon.edu/ )

• Astronomy HyperText Book: Stellar Clusters

... October 18, 1999 . NGC 3603: An Active Star Cluster . ... Explanation: NGC 3603 is home to a massive star cluster, thick dust pillars, and a star about to explode . The central open cluster contains about 2000 bright stars, each of which is much brighter and more massive than our Sun . ... These stars are less massive than our Sun, demonstrating that great numbers of low-mass stars also form in active starburst regions . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>8154) - www.arcetri.astro.it/ )

• APOD: October 9, 1997 - Hale Bopp and the North American Nebula
• APOD: October 2, 1999 - Phi Persei: Double Star
• APOD: May 22, 1996 - Star Cluster in the Rosette Nebula

... Abstract . ... An Efficient ACS Coronagraphic Survey for Debris Disks around Nearby Stars . ... The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region . ... High-resolution HST image of the face-on debris disk in the G2 dwarf, HD 107146 . ... Simulations of a nearby dwarf galaxy, a nearby giant galaxy and a distant giant galaxy; note that the last is similar in angular size to the dwarf, but has a much smoother brightness distribution (simulations from Ned Wright's ABC of distances . ...

Еще в разделе: (Показать все результаты (>14756) - www.stsci.edu/ )

• HST this week: 295
• HST this week: 268
• Fundamental Parameters, Integrated Red Giant Branch Mass Loss, and Dust

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 (>846) - www.mso.anu.edu.au/ )

• GSAOI Orion Nebula Cluster Science Page
• Blue Straggler Stars
• Julie Banfield | Astronomer

... All previous such superstars have been found along with many companion stars in the centres of crowded star clusters. The star is known as VFTS 682 from the VLT-FLAMES Tarantula Survey catalogue of the European Southern Observatory's Very Large Telescope (VLT) located at Paranal in Chile by means of the attached FLAMES instrument. ... Although VFTS 682 seems to be alone now it is not very far away from a very rich star cluster known as RMC 136 that contains several similar superstars. ...

Еще в разделе: (Показать все результаты (>4973) - star.arm.ac.uk/ )

• Stars Beyond Maturity
• Human Orrery
• Black Holes

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

Еще в разделе: (Показать все результаты (>1423) - www.astrosociety.org/ )

• ASP: Accidental Astrophysics: The Devil's In the Magnitudes, Part II
• ASP: Bright-Lights, Big-City, Overcast Survival Guide
• ASP: Beacons in the Gloom

... fran?ais . ... The cloud of pale gas surrounds a huge Red Giant star that has five times the mass of our Sun! ... The nebula was named by two British astronomers. ... Although the star at the heart of the nebula is millions of years younger than our Sun, it's already in a much later stage of its life. ... Our Sun is 4.6 billion years old and it's only just hitting middle age, whereas this star will live to be just a few million years old because it has much more mass. ...

Еще в разделе: (Показать все результаты (>60210) - www.eso.org/ )

• ESO - cosmology2002
• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• Anja Feldmeier-Krause

Astronotes Armagh Planetarium's Stellar Blog! ... Sun . ... Stars . ... Space Flight . ... Posted on March 3, 2011 | 9 Comments To observers on Earth, the great bull of Taurus has a fiery red eye. This is Aldebaran, an old red giant star which dwarfs our Sun. ... Continue Reading.. ... Posted on December 3, 2010 | ... No Comments Imagine that once the Sun sets, rather than a dark sky sprinkled with a few thousand dim stars, we had a sky blazing with ten thousand or so stars blazing [ ] . ...

Еще в разделе: (Показать все результаты (>2802) - www.armaghplanet.com/ )

• HST | Astronotes - Part 4
• Our Galaxy | Astronotes - Part 5
• Astronotes | Armagh Planetarium's astronomy news from across the Universe -

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

Еще в разделе: (Показать все результаты (>3635) - www.naic.edu/ )

• What is HISA?

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

Еще в разделе: (Показать все результаты (>949) - www.rochesterastronomy.org/ )

... MNRAS, 327, 46-54 (2001). ... MNRAS, 326, 805-820 (2001). ... 139-140 (2001). ... MNRAS, 326, 358-374 (2001). ... FREIRE, P.C., CAMILO, F., LORIMER, D.R., LYNE, A.G., MANCHESTER, R.N. & D'AMICO, N. "Timing the millisecond pulsars in 47 Tucanae". MNRAS, 326, 901-915 (2001). ... TAKAHASHI, M., SHIBATA, S., TORII, K., SAITO, Y., KAWAI, N., HIRAYAMA, M., DOTANI, T., GUNJI, S., SAKURAI, H., STAIRS, I. & MANCHESTER, R.N. "Pulsed X-ray emission from the fastest millisecond pulsar PSR B1937+21 with ASCA". ...

Еще в разделе: (Показать все результаты (>15482) - www.atnf.csiro.au/ )

• ATNF Science Highlights
• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or
• Evolutionary Paths in Galaxy Morphology

... This image shows a 7th magnitude star cluster, it's reflection nebula, an extended diffuse nebula and Barnard Dark Nebulae. The bright star at the top is omicron Persei (Atik). The cluster next to Atik is a star forming region with as many as 300 stars ranging from the brightest at B5 to low mass brown dwarfs. ... The obscuring dark areas are the Barnard Dark Nebulae 1 through 4. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Еще в разделе: (Показать все результаты (>66725) - www.atmob.org/ )

... 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. ...

Еще в разделе: (Показать все результаты (>1128) - www.cosmos.ru/ )

• The Sun
• The Sun -- History
• (S-6) Seeing the Sun in a New Light

... Sunday , October 6, 2013 Standard quasar-like AGN Standard AGN have: · · · · · Luminous accretion disk (with X-ray corona) Bright line emission (ionised by disk) Dusty obscuring torus (emits in IR/sub-mm) Orientation-dependent observed properties Sometimes, extended radio jets Sunday , October 6, 2013 Another class of AGN Other AGN , exemplified by weak radio ... Sunday, October 6, 2013 Summary · · · · · · Not all AGN follow the "standard" accretion disk picture. ...

Еще в разделе: (Показать все результаты (>2135) - www.mrao.cam.ac.uk/ )

• http://www.mrao.cam.ac.uk/galevol/salberts_cambridge_conference.pdf
• Astrophysics Group AMI Science
• Martin Krause - Publications

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

Еще в разделе: (Показать все результаты (>1414) - www.sao.ru/ )

• Doppler Shift
• "Structure" publications in 1996 year
• Gravitational Lensing by Clusters of Galaxies

... X-rays are made up of photons that are emitted from stars, or quasars, or supernovae, the sun, or simply: anything that is undergoing a change either in size or temperature or giving out heat. ... in an X-ray binary star system, in which one normal star's orbit is crossed by a neutron star, when the neutron star by means of gravitational pull takes matter from the normal star X-rays form. ... Artists conception of a normal star (HDE 226868) and a black hole taking matter from the normal star. ...

Еще в разделе: (Показать все результаты (>2814) - hea-www.harvard.edu/ )

• Doug Burke: Publications List
• Paul & Avivah Jonah's House
• Southern SHARC survey

... Kopylov, A.I., Kopylova, F.G. "Structure of galaxy groups and clusters and measurement of their masses", . ... Kopylova, F.G., Kopylov, A.I. "Peculiar motions of galaxy clusters and groups in the Hercules and Leo supercluster regions", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Leo supercluster", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Ursa Major supercluster", . ...

Еще в разделе: (Показать все результаты (>353) - mavr.sao.ru/ )

• Galaxy sector, archive 2009
• Detection of unique bright radio flare of X-ray binary
• Galaxy sector, archive 2014

... Bad Astronomy . ... Mad Science . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Does the discovery of dark matter account for the missing light? ... Now, when I look at your question, I think you may be confusing Olbers' paradox with another issue, called the Missing Mass problem. ... In other words, most (perhaps as much as 90%) of the mass of the cluster must be dark-- matter that literally did not emit light. ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>490) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Q and BA