Astronomy4all
NGC1499 - California Nebula mosaic in Ha It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky, around 100 ly long, and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a H-Beta filter (isolates the H-Beta line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. The California Nebula was discovered by E. E. Barnard in 1884. by: Jaime (moladso), Valdemorillo (Spain), December 30 2011 AAPOD 19 Aug 2012

NGC1499 - California Nebula mosaic in Ha

It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky, around 100 ly long, and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a H-Beta filter (isolates the H-Beta line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth.

The California Nebula was discovered by E. E. Barnard in 1884.

by: Jaime (moladso), Valdemorillo (Spain), December 30 2011

AAPOD 19 Aug 2012

Posted 9 months ago from bookmarklet
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Tagged: AAPOD, 19 Aug 2012, .
Source: aapod.astronomy.fm
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