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Photographer:

Kjell H. Winnem

Location of Photo:

Hof,Norway

Date/Time of photo:

4-10 dec 2012

Equipment:

Homebuilt 10-inch Newtonian f/4 and mount in dome.Cam.:SXVR-H9 guided off-axis with DSI ProII and PHD,GPUSB-interface to mount.Exp.:Ha 5x30m,SII 4x30m bin2x2,OIII 3x30m bin2x2.HST-palette.Proc.:Nebulosity2 and PS CS3.

Description:

NGC7635,also called the Bubble Nebula is a emission nebula in Cassiopeia,created by the stellar wind from a massiv hot young Wolf-Rayet star(10-40 solar masses).The main bubble is contained within another bubble about 2,5 times the diameter of the smaller and all is embedded in a giant molecular cloud.Distance abt.7800 ly.

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