NGC 2237 (Caldwell 49) Mon - The Rosette Nebula
Date: 25.2.2026
Equipment: ZWO Seestar S30
Exposure: 384x10sec in mosaic mode
Location: Havlíčkův Brod
Processing: StarNet, Photoshop
Description: The cluster and nebula lie at a distance of 5,000 light-years from Earth and measure roughly 130 light years in diameter.

NGC 2237 (Mon) - The Rosette Nebula
Date: 21.3.2009 (20:12 - 21:35 CET)
Equipment: SW 80/600 ED, Vixen 0,67x, CG5 GOTO ADV mount
Camera: Modif. Canon EOS 350D (Baader ACF) + Baader UHC-S
Exposure: 12x300 sec, ISO 1600
Location: Havlíčkův Brod - Chrast
Processing: Adobe DNG Converter, SubRaw, DeepSkyStacker, Photoshop

NGC 2237 (Mon) - The Rosette Nebula
Date: 24.2.2008 (aprox. 19:45 CET)
Equipment: Tair 4,5/300 (ap. 6,0), GSO mount
Camera: Modif. Canon EOS 350D (Baader ACF)
Exposure: 4x480 sec, ISO 800
Location: Havlíčkův Brod - Chrast
Author of the picture: Ondřej Zelenka
Processing: DeepSkyStacker, Photoshop
Description: The Rosette emission nebula surrounds the open star cluster NGC 2244.