2023 Michael A. Siniscalchi
Home

What's New

About

Gallery

Odds n Ends
Contact

      NGC 2403
       Spiral Galaxy in Camelopardalis
           RA:07h 36m 51s  Dec: +65 36' 09" Distance - ~9.6 mly Size- 21' x 12'

Location & Date
Backyard, Abbott Observatory- Long Island, NY,  February 2023
Telescope
TMB130SS  910mm F/7 APO, Moonlite focuser, Losmandy G11 Gemini
Image scale 1.54 arcsec/pixel
Camera
SBIG ST-10XME
Baader Ha LRGB  filters
CCD temp -10C
Exposures
Ha-12x10m  Lum - 25x3m Red-120x3m  Green-20x3m  Blue-20x3m Bin 1x1
Planning & Acquisition
Sequence Generator Pro

Processing
CCDStack -  Calibration, Debloom, Deconvolution
Astro Pixel Processor - HaLRGB alignment and stacking
Adobe PS -  Ha + LRGB processing
RC-Astro StarXTerminator & NoiseXTerminator
Topapz Gigapixel AI - galaxy detailing

Wikipedia-

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 1050 binoculars. NGC 2404 is 940 light-years in diameter, making it one of the largest known H II regions. This H II region represents striking similarity with NGC 604 in M33, both in size and location in galaxy.


Click on image for full size