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Photographer:

Mahdi Naseri

Location of Photo:

Niaraj-Qazvin-Iran

Date/Time of photo:

September 2012

Equipment:

GSO Newtonian 8" Telescope - Canon EOS 50D modified - EQ5 SinScan Mount - Orion SkyGlow Imaging Filter - GSO Coma Corector

Description:

Helix or NGC 7293 is one of the closest planetary nebulae to the Earth with distance of 655 light year. Its apparent radius is just less than the Moon's apparent dimensions and hence it could be considered as an extended planetary nebula, in constrast with most planetary nebulae, which usually look extremely small even via a telescope.

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