Howdy
Went for these 2 planetaries in one image, a big 90 minutes total exposure time 9 x 10 mins ISO 800. The 2nd one, Du Re1 is VERY faint, in fact its magnutude isnt given, and its barely visible even in the UKST Ha survey. Wray 16-121 is blazingly bright in comparison lol. It has a wierd shape.
2nd image is 2 more obscure and much smaller planetaries. Shorter exposure is He2-84 and he2-85, 3 x 10 mins ISO 800. He2-84 is readinly seen , He2-85 is small and faint, Im 90% sure Ive identified He2-85.
Both these groups of planetaries lie near the bottom of the southern cross, a few degrees apart. Both images taken with UHC-S and uv/ir filters, MPCC, 10 inch F5.6 newtonian, Hutech modified 350D.
Note, the jetstream was in full swing, seeing was horrible, the guidestars were jumping around, and small sharp stars were impossible to get in images.
Scott
very dissapointing Scott! they are too bright ;-)! excellent imaging, by 7 pm last night everything was dripping and we even had fog by 8pm, being in wallsend heights is a help!
Thanks all.
Yes it was VERY wet, I had a 1 foot long foam dewshield on the scope that kept the dew off the secondary mirror, I could hear water dripping off the roof into the gutters.
Heers the Star Atlas pro charts of the objects and the photographic field represented by the rectangles.
Cloud eventually came in to end proceedings.
Scott
Very impressive to track down such small dim objects. Is Star Atlas Pro the one to get for deeper charts? Could you post a chart showing all the objects in my picture of IC4628 and surrounds (another thread). Thanks Bert
Registar had no problem with the Star Atlas Pro map. I must get it now.
The overlay is most informative, with one look you can see what all the scales are.
