Messier Objects
I highly recommend a book on Charles Messier and the creation of this catalogue - Atlas of Messier Objects, 2008 by Ronald Stoyan.
Note: This gallery should be automatically sorted by Messier #.
Sagittarius - 25/4/17 (Processed stack)
Imaged at Perth Observatory, a hurried polar alignment turned out to be poor.
DeepSkyStacker 3.3.4 Stacked 80% (14) of 18 Images ISO 1600 @ 60 Sec, 25 DARK @ 120 Sec, 32 BIAS, 17 FLATS
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.
ConstellationSagittariusGalactic NebulaGlobular ClusterGumGum72Gum76MessierM20 Trifid NebulaM21 Open ClusterM8 Lagoon Nebula and ClusterNGCNGC6514 M20 Trifid NebulaNGC6523 M8 Lagoon Nebula and ClusterNGC6531M23 Sagittarius Open ClusterNGC6494 M23 Sagittarius Open ClusterNGC6544 Globular ClusterOpen ClusterM7 Ptolemy's ClusterNGC6475 M7 Ptolemy's ClusterM6 Butterfly ClusterNGC6405 M6 Butterfly ClusterM24 Small Sagittarius Star CloudICIC4715 M24 Small Sagittarius Star Cloud
From 2017 Refocusing
