"The Blue Snowball Nebula" In Andromeda
NGC 7662

NGC 7662 The Blue Snowball Nebula

Image Details:

Telescope: Celestron 14 @ F11.4 (3975mm)
Wikipedia Notes: NGC 7662 otherwise known as the Blue Snowball Nebula is a planetary nebula located in the constellation Andromeda. The distance to this nebula is not known with any real accuracy. According to the Skalnate Pleso Catalogue (1951) the distance of NGC 7662 is about 1,800 light years, the actual diameter about 20,000 AU. In a more recent survey of the brighter planetaries, C.R.O'Dell (1963) derived a distance of 1,740 parsecs or about 5,600 light years, increasing the actual size to 0.8 light year, or nearly 50,000 AU. It has a faint central star that is variable, with a magnitude range of 12 to 16.[3] The central star is a bluish dwarf with a continuous spectrum and a computed temperature of about 75,000K. The nuclei of the planetary nebulae are among the hottest stars known.[4] NGC 7662 is a fairly popular planetary nebula for casual observers. A small refractor will reveal a star-like object with slight nebulosity. A 6 in. telescope with a magnification around 100x will reveal a slightly bluish disk. Telescopes of diameter 16" or greater may reveal slight color and brightness variations in the interior.
Mount: Astro-Physics 1200GTO
Camera: SBIG ST-10XME w/CFW-8A & Astrodon Filters
Exposure: RGB = 65:60:60 Minutes
Location: ARGO, Oregon USA
Date: August 2005