Galaxy Cluster Abell 154 - more than meets the eye Galaxy cluster Abell 154, centered around IC 1635, is not all that it seems. It is listed in Vizier as...

Lynds' Catalogue of Dark Nebulae (LDN 497) LDN 497 in Scutum Lynds' Catalogue of Dark Nebulae (LDN 497) shows up well in these two images. Of almost equal...

Big Images from Small Telescopes (3) The Horsehead and Flame Nebulae in Orion Before I had the facility to image over the Internet I used to do my astronomy...

A Possible New Common Proper Motion Pair? TYC 2523-1622-1 and TYC 2523-1878-1 in Ursa Major Careful measurement over many years reveals that all stars are...

The Birth & Growth of Worlds by A H Green 1890,VGC. 61 pages. Interesting old astronomy book featuring a lecture on the birth and growth of the planets,as seen...

Big Images from Small Telescopes (4) The Rosette Nebula in Monoceros I had been observing for a number of years before I even realised that the constellation...

Our nearest neighbours - CN LEO (Wolf 359) CN LEO is the 3rd closest system to Sol. The system consists of a red dwarf of spectral class M6.0 with an...

The desktop planetarium "The Digital Universe" v 1.5 has been released for Amiga OS4. An online ordering and download system will be running soon, at...

So why has this pair been listed in the catalog? Although the most recent version of the Washington Double Star Catalog (WDS) available through the CDS Vizier...

Red Variables in NGC 6883 (Cygnus) These clusters are young and most of the stars tend to be blue or white in color. However note the reddish-orange stars...

Where is the best place to find the current position and magnitude of the bright comet mentioned in the newspapers? Abdul

Big Images from Small Telescopes (2) IC 1805 a bright nebula in Cassiopeia IC1805 is unusual in that even the usually mega reliable SkyMap Pro doesn't really...

Variable stars in Orion - nice amateur targets BF ORI - A T Tauri/Herbig AeBe type nebular star that varied by nearly three magnitudes during the intial...

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The Amateur Red Dwarf Survey 2007-2008 Red dwarfs are by far the most common but also the most inconspicuous type of star. They are cool, small (7% to 60% of...

Research has led to the discovery of the heaviest element yet known to science. The new element, Governmentium (Gv), has one neutron, 25 assistant neutrons, 88...

Excellent view of the remarkable Comet Holmes tonight in Perseus. It certainly must have been a pretty awesome explosion to cause that amount of outgassing -...

Red Variables in the Perseus Double Cluster These clusters are young and most of the stars tend to be blue or white in color. However note the reddish-orange...

Big Images from Small Telescopes - The Gamma Cygni Nebula The Gamma Cygni Nebula is much larger and far more complex that most astronomers realise. For...

Dear all, Our newly released theme articles on algebraic statistics are now available at (please click on Current Issue): http://www.stat. sinica.edu....