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 2404 is 940 light-years in diameter, making it one of the largest known H II regions.
NGC 2403
NGC 2403 is an intermediate spiral galaxy in the constellation Camelopardalis. NGC 2403 is an outlying member of the M81 Group, and is approximately 8 million light-years distant. It bears a striking 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.
Photographed with APO107 mm refractor telescope and Atik 360EX CCD monochrome camera in Stuvsta January 2019. Exposure was 75 min.
NGC 2403
NGC 2403 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 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.
Photographed with MN190 reflector telescope and Atik 360EX CCD monochrome camera in Stuvsta, February 2021 at -10 centigrades. Total exposure was 95 min with ha-l-rgb filters.
NGC 2403
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 2404 is 940 light-years in diameter, making it one of the largest known H II regions.
Photographed with the RC8″ reflector telescope and the ASI 2600MC color camera in Åva, March 2024. Exposure was 40 * 1 min + 20 * 3 min = 140 min with IDAS LPS P3 light pollution filter.
NGC 2403
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 2404 is 940 light-years in diameter, making it one of the largest known H II regions.
Photographed with the RC8″ reflector telescope and the ASI 2600MC color camera in Åva, March 2024. Exposure was 40 * 1 min + 20 * 3 min = 140 min with IDAS LPS P3 light pollution filter.