CCD images by Celestron C5

and ST-7

The CCD mobile imager

Celestron C5 + SBIG ST-7 + Takahashi EM200

Usually I take my CCD images from Tokyo using my 12 inch Newtonian + HPC-1 CCD. However, from Tokyo, I can not take images of low altitude objects, for example, NGC253. Also, during Spring and Summer, the sky of Tokyo is not very clear. This is the reason why I developed this compact mobile system. The image quality using this system is very close to those using 12 inch system, if I bring it to Mount Fuji.

The images below were taken at Mount Fuji except for M13.

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M27 (20 min with Edmund IR block)

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M13 (10 min)

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NGC253 (22 min)

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Veil nebula (30 min with Edmund IR block)

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NGC7331 (30 min x 2)

Please compare with the image of NGC7331(5minx12) by my 12 inch system

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M51 (20 min x 2)

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NGC253 by LRGB quadcolor

(L=22 min, R=G=B=20 min with 2x2 bining)

M42 by C5+ST-7

L=R=G=B=5, LRGB quadcolor

M27 by C5 + ST-7E (non ABG)

The first image by my new ST-7E camera. L:10min, R=G=B=5min (3x3 binning). Please note that this image was taken by 5 inch scope with 25 min exposure under heavy light pollution of Tokyo.

LRGB image of M82 by C5(12.5cm) + ST-7E

L:40min, R=B=20min, B=40min

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