NGC 5189 planetary neb in Musca

tornado33 · #1 14-07-2009, 11:30 PM

Hi all
I used an unexpectidly clear sky to get a deep image (2 hours worth)of this unusual object.

12x10 mins iso400. LPS filter, MPCC coma corrector. Modded 350D, 10 inch f5.6 newtonian. Off axis hand guided as usual. Some wind buffeting earlier in the run but no subs needed to be rejected. The 23 year old Sampson mount was tracking okay

I had to use masking similar to what Id use for M42 to preserve bright detail from saturating while bringing out fainter detail.

full frame here
Scott

jjjnettie (Jeanette) · #2 14-07-2009, 11:42 PM

Nice capture! It's not your usual run of the mill PN is it. Lot's of detail to explore in the image too. Thanks for sharing it with us.

Alchemy (Clive) · #3 15-07-2009, 06:32 AM

quite a bit of detail there scott, glad you put in the close up version too

seeker372011 (Narayan) · #4 15-07-2009, 07:46 AM

really nice target, had it on the list for ages but never managed it yet..the full frame is great..pity about the meteor though it doesn't really detract..thought median stacking would get rid of this sort of stuff

Lester · #5 15-07-2009, 08:12 AM

That would have to be one of the most unusual planetary nebula, showing off a lot of structure within.

Thanks Scott.

telecasterguru (Frank) · #6 15-07-2009, 08:27 AM

Well captured. Lots of detail.

Frank

TrevorW · #7 15-07-2009, 10:10 AM

Thats one faint little bugger well captured !!!

tornado33 · #8 15-07-2009, 01:42 PM

Thanks all
Id love to know how such a nebula formed, not youre run of the mill planetary thats for sure.

I had a try of "Median Stacking" in Iris, it got rid of the satellite trail nicely.
Scott

Tamtarn · #9 15-07-2009, 10:05 PM

Nice amount of detail in this unusual PN Scott, great to see your results.
Well done.

h0ughy (David) · #10 15-07-2009, 10:26 PM

yep these are certainly your forte scott

multiweb (Marc) · #11 16-07-2009, 08:56 AM

Nice pic. Interesting shape.

alan meehan (Alan) · #12 16-07-2009, 06:57 PM

Very different looking object Scott nicely taken,well done.I dont think its a PN its a alien if you look close enough.

renormalised (Carl) · #13 16-07-2009, 07:05 PM

Nice shot of a quite interesting object

Hagar (Doug) · #14 18-07-2009, 09:08 AM

Nice one Scott, you love these little tackers, This one is somewhat unusual and hand guided again.

Well done.

renormalised (Carl) · #15 18-07-2009, 09:45 AM

Quote:

Originally Posted by tornado33

Thanks all
Id love to know how such a nebula formed, not youre run of the mill planetary thats for sure.

I had a try of "Median Stacking" in Iris, it got rid of the satellite trail nicely.
Scott

I think it's not only a matter of the process of formation, but also a matter of perspective. Planetary nebs usually have some sort of bipolar outflow, so you get this "hourglass" shape to the outflows. You also have a shell like structure that was created from outflowing gas when the star was in its previous giant state. The unusual shape is probably due to the outflows colliding with material in the vicinity of the star. Most likely previously shed material. But even remnant giant planets orbiting the star can influence the shape of the outflowing gas.

It also depends of perspective....the angle you're looking at the planetary nebula. You may not be seeing everything that's there.

lesbehrens (Les) · #16 18-07-2009, 10:03 AM

great image. this is one of my favorite DSO's. i saw this for the first time at qld astrofest last yr. i like viewing this thought the 16".