Messier 57 - Ring Nebula

 Planetary Nebula

 In constellation Lyra

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Messier 57 was discovered by Antoine Darquier de Pellepoix in 1779.

The Ring Nebula is estimated to weigh 1.2 solar masses

and is located 2,300 light years away.

The white dwarf central star has a magnitude of 15.75

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RA 18^h 53^m 35.07^s

DEC +33° 01′ 45.03″

Messier 57 has a mag (brightness) of 9.0

and its size is 230" x 230"

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Imaging Scope : William Optics FLT110 [TEC]

Focal Length = 1787.5mm

Imaging Camera : GSTAR-EX CCD Video

Televue 2.5 X Powermate

EQ6 Pro GEM Mount

Unguided

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149 Frames Used From 1,449 [2.5 minute video]

Baldrine, Isle of Man, British Isles.

01:50 on 06/06/2007.