Caldwell Objects
A late 20th century amateur object catalogue of 109 objects to accompany the Messier catalogue, created by Sir Patrick Alfred Caldwell-Moore (March 1923 – 9 December 2012)
I recommend a book entitled 'The Caldwell Objects' by Stephen James O'Meara, 2002
Note: This gallery should be automatically sorted by Caldwell #.
Read MoreI recommend a book entitled 'The Caldwell Objects' by Stephen James O'Meara, 2002
Note: This gallery should be automatically sorted by Caldwell #.
Milky Way in Norma - 25/4/17 (Processed stack)
Imaged at Perth Observatory, a hurried polar alignment turned out to be poor.
DeepSkyStacker 4.4.1 Stacked 80% (13) of 17 Images ISO 800 @ 120 Sec, 25 DARK @ 120 Sec, 32 BIAS, 17 FLATS, Post-processed with Adobe Photoshop CC 2018
Canon 50mm f/1.8 EF Lens on Baader BCF modified Canon 70D DSLR field ~17 x 25 degrees, Ambient 14C. SkyWatcher Star Adenturer EQ mount, unguided on sidereal rate.
ConstellationNormaGumGum53 RCW108 Rim NebulaGalactic NebulaNGCNGC6188 Rim NebulaNGC6193 C82 Open ClusterOpen ClusterCaldwellC82 NGC6193 Open ClusterICIC4628 Gum 56 Prawn Nebula in ScorpioGum56 IC4628 Prawn Nebula in ScorpioNGC6231 C76 False Comet ClusterC76 NGC6231 False Comet Cluster
From 2017 Refocusing
