Quote:
Originally Posted by alpal
Galaxyman,
I doubt that those deep sky surveys put in the number of subframes & time -
including processing that
many amateurs do for one target. i.e.
Ha RGB= 150 50 50 50min RGB
It's a great wide field photo.
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Maybe southern imagers should get together and publish their own H-alpha atlas of the southern Milky Way! The nebulae between Ara and Circinus are little known, being mostly RCW and Gum objects. I don't even think the 19th and 18th century observers ever had a proper look at this section of the Milky Way.......hardly any NGC/IC objects in many parts of it.
cheers,
Robert
Not to forget that there are a number of brightish galaxies seen in low extinction windows in this part of the Milky Way, that were entirely missed in the NGC/IC.
e.g. Circinus Galaxy,
and ESO 137-010 and ESO 137-008
(the last two on this list are part of a very rich, but obscured, cluster of galaxies. Minus extinction, it would look like the Coma Cluster..... but only brighter!!)