What's the current thought on these? Are there any out there that are worth the money? I already have an Astronomik UHC filter which is pretty good, but...

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...

Hi guys I'm off to china in a couple of weeks, to see the total eclipse of 1/8/08, weather permitting! I was thinking of making a solar filter for my 10x50...

Two dark nebulae in M24 in Sagittarius Lynds' Catalogue of Dark Nebulae (LDN 327 and 323) show up well in these two images. Of almost equal interest are the...

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I was thinking about the greenhouse effect, and this question occured to me: in the space around me, what's more common, atoms or photons? -- Sleepalot aa...

The Rosette Nebula in Monoceros I had been observing for a number of years before I even realised that the constellation of Monoceros existed. It was several...

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

The Gamma Cygni Nebula – A big image from a small telescope The Gamma Cygni Nebula is much larger and far more complex that most astronomers realise. For...

Elements. Periodical table is wrong. Hydrogen has 7 life forms circles. Fuel cells damage hydrogen. Place used fuel cell water from pipe form car into lab...

Spam Free Alternatives to Usenet Astronomy Groups There are viable alternatives to the usenet astronomy groups that do not suffer heavily from...

Examining the alternatives to the Hubble Palette The Great Orion Nebula (M42, NGC 1976) is probably the brightest, most famous and most imaged nebula in the...

Mr selfstyled UKASTRONOMY blogged :- "There is a strange situation developing involving the leading figures in the AAVSO, VSX the variable star database they...

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...

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Baade’s Window Baade's Window is a small clearing in the dust clouds of Sagittarius, near the globular cluster NGC 6522, through which it is possible to see...

The Hubble Palette - The effect of Image Processing Combining images from narrowband filters is often done using the Hubble tri-colour palette, in which SII,...

Combining images from narrowband filters is often done using the Hubble tri-colour palette, in which SII, Ha, and OIII are assigned to R, G, and B,...

AMATEUR ASTRONOMY ONLINE http://tech.groups.yahoo.com/group/amateurastronomyonline/ BINOCULAR...

UK scientists studying high-energy light from space and the connection between the Sun and Earth are to lose funding on a number of their projects. The body...