The Rosette Nebula (NGC 2237-9/46)

Posted by joramusa
on Saturday, February 23, 2013

I attach NGC 2237 astrofoto, with exposures with narrow-band filters.

Corbera de Llobregat.Observatory Can Margarit.(Barcelona) Spain Date: 03 y 07-2013.

Telescope: Astrograph APM 107 f:4.9(Reduced with Riccardi reducer-flattener)

Mount: 10 MICRON GM 2000 camera SBIG STL 11000M

Exposures:

H alpha as R.

Or III as G.

S II as B

H-alpha: 6 x 1.200 sec bin 1-III: 3 x 1.200 seg bin 1.S-II: 4 x 1.200 seg bin 1

Calibrated with darks-flats-.:

CCDStack2 + Photoshop CS6 programs.

Thanks

José Mundo

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