NGC 2403 Spiral Galaxy in Camelopardalis

NGC 2403 Spiral Galaxy in the Constellation Camelopardalis

 

NGC 2403 (also known as Caldwell 7) is an intermediate spiral galaxy in the constellation Camelopardalis. It is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a similarity to M33, being about 50,000 light years in diameter and containing numerous star-forming H II regions. The northern spiral arm connects it to the star forming region NGC 2404. NGC 2403 can be observed using 10×50 binoculars. NGC 2404 is 2000 light-years in diameter, making it one of the largest known H II regions, even larger than Tarantula Nebula in Large Magellanic Cloud. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy.

 

Technical Information for Image

 

Telescope: William Optics Zenithstar 81 Refractor

Mount: iOptron CEM25P

Imaging Camera: ZWO ASI294MC. Gain 120. Cooled to -5C.

Filter: Optolong L-Pro

Guiding: William Optics 50mm, 200mm FL, ASI290MC camera

Exposures: 40 x 180s Bin 1x1

Capture, Guiding, Polar Alignment: ZWO ASIAIR PRO

Site: Borrego Springs, CA USA, Bortle 4

Processing: Pixinsight with Final Touchup in Photoshop CC

 

 

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