In the past it was diificult for astronomers to be certain if a pair of stars was just a line of sight arrangement or if the stars were gravitationally...

Images of Saturn (2) - Rhea's Pitted Profile The low illumination angle near the terminator makes visible the steep topography of craters on Rhea's battered...

The Messier Ten Minute Challenge M65 and M66 - in Leo Messier 65 (M65, NGC 3623), together with its neighbors M66 and NGC 3628, form a conspicuous triplet of...

The Messier Ten Minute Challenge M83 - Galaxy in Hydra Messier 83 (NGC 5236) although it is the most southerly of the Messier galaxies- and hence harder to...

Supernova 2008aq - Imaged March 2nd 2008 Discovered 2008/02/27.44 by Lick Observatory Supernova Search. Found in an MCG -02-33-20 at R.A. = 12h50m30s.42,...

Images of Saturn (10) - Crowded Sky A string of icy moons stretches across the Saturn system in this view from nearly edge-on with the ringplane. Nearest to...

The Messier Ten Minute Challenge M88 - Galaxy in Coma Berenices Messier 88 (NGC 4501) is one of the brighter spiral galaxies in the Virgo Cluster. It is...

The NGC Ten Minute Challenge NGC 4038 and NGC 4039 in Corvus The nearest and youngest example of a pair of colliding galaxies with each galaxy’s...

What can I image in the far Southern Sky in under 5 minutes? (3) The Globular Cluster - Omega Centauri Discovered by Edmond Halley in 1677 NGC 5139 is better...

The Messier Ten Minute Challenge M51 - The Whirlpool Galaxy in Canes Venatici This image was created by median combining 7 x 90 second unfiltered images...

Supernova 2008af - Imaged February 11th 2008 Discovered 2008/02/09.173 by Tom Boles. Found in UGC 9640 at R.A. = 14h59m28s.50, Decl. = +16°39'12".3 ...

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...

An attractive New General Catalogue group in Pisces Galaxies that are listed in the New General Catalogue are not even distributed across the sky. Some groups...

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...

I have added some more material to the site - this time on BLAC and AGN objects http://www.martin-nicholson.info/resources/newtargets.htm Martin Nicholson,...

Deep Imaging in Hydrogen Alpha This is a 9 page mini web site intended to show that most of the emission nebulae are far more extensive than most catalogues...

What they don't tell you about double stars! If you do make a measurement of the separation and position angle the chances are that you will be looking at a...

The regular postings by ukastronomy For the last three months I have tried to post astronomy related material to the three groups sci.astro.amateur,...

Supernova 2008m - Imaged January 20th 2008 Discovered 2008/01/15.12 by BRASS. Found in ESO 121-026 at R.A. = 06h21m41s.28, Decl. =...

Makemake (formerly 2005 FY9) Makemake is the second brightest of the trans-Neptunian objects and is classified as both a dwarf planet and as a...