M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... 2007 November 7 . The Sloan Great Wall: Largest Known Structure? ... Explanation: What is the largest structure known? ... A grouping of galaxies known as the Sloan Great Wall was discovered in the Sloan Digital Sky Survey and is a leading candidate. The Sloan Great Wall can be seen in this digitally recast contour map of galaxies in the Two Degree Field galaxy survey. ... The labeled Sloan Great Wall spans over one billion light years, longer than any structure ever measured. ... About APOD | ...

... 2000 October 23 . Dwarf Elliptical Galaxy NGC 205 in the Local Group . ... It is part of a gathering of about 25 galaxies known as the Local Group . ... Pictured on the lower left is one of the many dwarf ellipticals : NGC 205 . ... The above image shows NGC 205 to be unusual for an elliptical galaxy in that it contains at least two dust clouds (at 1 and 4 o'clock - they are visible but hard to spot) and signs of recent star formation . ... About APOD | ...

... M82: An Irregular Galaxy . ... 28.07.1995 . ... Credit Copyright: The Electronic Universe Project Explanation: Not all galaxies have spiral structure like our Milky Way. Many have smooth elliptical shapes, but also many have irregular shapes such as the bright sky object M82, the 82nd object on Messier's list. ... Many images of Messier objects can be found in The Electronic Universe Project's The Galaxy Gallery: Messier Objects. ... Publications with keywords: M 82 - irregular galaxy . ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Space Flight . ... Posted on April 21, 2011 | No Comments An image from the European Southern Observatory, reveals two galaxies, NGC 3169 and NGC 3166, meeting in intergalactic space. ... Continue Reading.. ... 1 Comment NGC 2841 is a rather beautiful flocculent spiral galaxy. The Hubble Space Telescope recently imaged NGC 2841 as part of an investigation into how new stars are created. ... Posted on October 28, 2010 | ...

... Observatory . ... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2013 > Deconstructing Galaxies . ... Science Users Information . Observing Facilities . ... Observing with ESO Telescopes . ... Observing Tools and Services . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... The study of the structure and morphology of galaxies is one of the major tools astronomers have to address how galaxies form and evolve. ...

The quantity of dust in a spiral disk can be estimated using the dust's typical emission or the extinction of a known source. In this paper we compare two techniques, one based on emission and one on absorption, applied to sections of 14 disk galaxies. ... Hence, they depend differently on the average number and optical depth of ISM structures in the disk. The small-scale geometry of the cold ISM is critical for accurate models of the overall energy budget of spiral disks. ...

Our publications in 2003 year Pustilnik, S. A.; Kniazev, A. Y.; Pramskij, A. G.; Ugryumov, A. V. Astrophysics and Space Science, v. 284, Issue 2, p.795-798 (00/2003). Ugryumov, A. V.; Engels, D.; Pustilnik, S. A.; Kniazev, A. Y.; Pramskij, A. G.; Hagen, H.-J. Astronomy and Astrophysics, v.397, p.463-472 (01/2003) . ... Astronomy and Astrophysics, vol. 400, p.841-857 (03/2003) . ... Kniazev,Alexei Y.; Pustilnik, S.A.; Ugryumov, A.; Pramskij, A. Astronomische Nachrichten, Supplementary Issue 2, Vol. ...

M87 Gas Disk and Optical Jet (STSci) . SEDS Messier Catalogue M87 Page (U. Arizona) . Black Hole and Jet in M87 (NASA/GSFC) . ... The large scale radio structure is shown in the 3CRR Atlas . Richard White's Virgo Cluster page has optical and X-ray images of the large-scale environment of M87 . ... HST Observes Distant Radio Galaxies (STScI) . HST Finds a Black Hole in NGC4261 (STScI) . HST finds a Bare Black Hole Pouring out Light in NGC6251 . ... Alan Bridle's Home Page . ...

... Two new LBV stars have been discovered in the Andromeda Galaxy. ... In Figure 1 the spectral energy distributions for six stars are shown: upper row - the newly discovered LBV stars, middle row - two well-known LBV stars Var A-1 and AE And, the lower row - two new B[e]-supergiant stars in Andromeda. ... Infrared spectra of the stars in the Andromeda Galaxy: two classical LBVs Var A-1 and AE And, two new LBVs J004526.62 and J004051.59, and two new B[e]-supergiants J004417.10 and J004444.52. ...

... Radio astronomers at Arecibo Observatory observe a wide variety of pheno