Expansion of M 1 (Crab Nebula) over 9 years

These two images were taken with the 2m RCC telescope at NAO Rozhen. The first one is from 21.01.2002 and the second - from 14.11.2010. The nebula's expansion is clearly seen.

Credit first image: Niki Petrov  and Galin Borisov.

second image in collaboration with Niki Petrov and Yanko Nikolov.

 

Technical Details:
Optics: 2m. RCC telescope
Mount: -
Camera: 2002: Photometrics CA 200A, 2010: VersArray 1300B
Filters: RVB filter set
Dates/Times: 21 January 2002; 14 November 2010
Location: National Observatory Rozhen
Exposure Details: 2002: R,V,B = 5 min; 2010: R,V,B = 15 min
Subexposures: -
Acquisition: -
Processing: PixInsight, Photoshop CS
     
 

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