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View Full Version here: : Planetary nebula duo and best Horsehead yet


tornado33
27-03-2006, 01:36 AM
Hi all.
Heres 2 of the deepest images I have ever taken.
Firstly 2 Planetaries for the price of one, the bright one is NGC 2899 on left, but at upper right is the much fainter Wray 17-31. This is my 2nd Wray planetary Ive bagged, but really cool to get it in same image as another planetary :)
Its a VERY long exposure, 3 x 20 mins ISO 400, really pushing my modded 350D for a total of 1 hours imaging time. Fully processed, dark and flat fielded in IRIS, ita all processed nicely with a munimum of fiddling. I might try and enhance it though to bring out the Wray planetary more.

Earlier, I tried a lot of shorter but higher ISO images of the Horsehead. My only hassle is I should have composed it to forget about the Flame nebula and have that and the bright star out of frame, as the star made all sorts of internal reflections including the large faint semicircular one. Anyway heres the final result, its 8 x 5 mins ISO 1600 also processed in Iris.

Both images through my 10 inch F5.6 newt, off axis hand guided and Baader UHCS filter and coma corrector used. Sky conditions near perfect, as good as it gets for suburban Newcastle.
Scott

tornado33
27-03-2006, 01:52 AM
Heres a bright version of the previous pic. Wray 17-31 more visible though NGC 2899 is way overexposed. There seems to be some unidentified diffuse faint nebulosity near top right edge too, I will see about investigating that in next few days.
Scott

EzyStyles
27-03-2006, 02:38 AM
:eyepop: :prey2: :prey2:

That is an excellent find there scott. Near impossible objects and you did it! Spend a few hours trying to find Blue Planetary NGC3918 tonight but failed. How did you find those near impossible objects? would like abit of a challenge ;)

The horsehead/flame is stunning. Never can get enough of your images. Keep it up scott. :)

tornado33
27-03-2006, 08:21 AM
Many thanks.
Id be lost without Pauls excellent Star Atlas pro software, with which I generated finder charts. The red rectangle outlines the actual field I will get with my camera and telescope, so I composed it by putting the brightest stars visible as they appear in the field. A few short exposures to verify I was on target and I was ready to go :).

Sky conditions were very good, and as my scope will be down while the mirror gets recoated I thought I may as well go "very deep" to see how things go.

Yes the Blue Planetary can be tough to find, sometimes ive really struggled to find it myself. Scott

ving
27-03-2006, 09:12 AM
great stuff scott :D

Lester
27-03-2006, 11:24 AM
Great shooting there Scott.

Striker
27-03-2006, 01:11 PM
Lovely shots Scott.

Yes most definelty your best horse so far....

Starkler
27-03-2006, 07:18 PM
Awesome shots :) I love deep-deep shots !

Once you find 3918 its pretty easy to see. I can see it in my ed80 from my suburban backyard.

PhotonCollector
28-03-2006, 03:24 PM
Hi Scott,

That's a fine image of the Horsehead Nebula (and surrounds) you have there. The bright star though is a real nuisance, isn't it?

:eyepop:
Good image.

tornado33
28-03-2006, 05:41 PM
Thanks all
Yes Paul it is, next time I will put the horsehead in centre and have the star out of frame :)
Scott