NGC 2403

Spiral galaxy

NGC 2403 is a spiral galaxy in the constellation Camelopardalis, its about 11 million light years away from the solar system and has a diameter of about 70,000 light years.



object NGC 1499
date of recording
May 4, 5, 6, 7 and 8, 2018
exposure 18.9 hours, RGB: each 180x50", Luminance: 863x30", H-alpha: 152x100"
teleskope Celestron RASA F2.2
focal length 620mm
filter Baader f/2 Highspeed 2" H-Alpha Filter, Baader R 2", Baader G 2", Baader B 2", Baader Luminance 2"
camera ZWO ASI1600mmc
guiding 250mm guide scope, MGEN
mount Celestron CGE pro
AstroBin click here

M33's little sister

NGC 2403 was discovered in 1788 by the German-British astronomer Wilhelm Herschel. It is a spiral galaxy with prominent spiral arms in the constellation of Camelopardalis in the northern sky. In the center of the galaxy are several large, open star clusters with massive, very hot stars embedded in HII regions.

NGC 2403 is a member of the so-called M81 galaxy group and is about 11 million light years away. In 2004, the 2004dj supernova erupted in this galaxy. Already in 2002 SN 2002kg and before SN 1954J was observed in NGC 2403.

Baerenstein Observatory

private observatory
Marcel Drechsler





© Marcel Drechsler, all rights reserved

credits // data privacy


Photos can be purchased as licensed files or printed.

To the photo portal


No self-service shop

Please note that all images on these pages are protected by copyright. Use of the photos without prior permission, not even for editorial purposes, is not permitted.