Pismis 24 open cluster
Posted 21 November 2012 - 10:11 PM
Posted 21 November 2012 - 10:41 PM
Please share your visual observations of this object and what telescope you used.
Well, that cluster is just a small angular group of 10 to 15 stars that sits in the more extended nebula NGC 6537 in Scorpius (kind of hard to view this time of year). My log entry from 5/4/2000 reads:
NGC 6357, 5/4/2000, at 0730 UTC: 10 inch f/5.6 Newtonian, 70x.
Larger faint roughly oval haze north of a N-S line of stars. Very patchy. UHC and OIII show brighter patch around a tiny tight group of stars. Outer edges very irregular. Cluster Pismis 24 near center, with 7-10 stars.
From my filter survey:
NGC 6357 (diffuse nebula in Scorpius)
(10 inch f/5.6, 52x).
DEEP-SKY: (2) not easy to see without a filter, as Deep-Sky just barely brings it out.
UHC: (3) Noticeable boost in contrast, showing some irregularity and a brighter portion around a tiny group of stars.
OIII: (4) More contrast than UHC, with the patch around the tiny star group greatly enhanced.
H-BETA: (1) almost kills the nebulosity.
RECOMMENDATION FOR NGC 6537: OIII/UHC (H-Beta *not* recommended).
Clear skies to you.
Posted 22 November 2012 - 09:34 AM
Posted 06 December 2012 - 05:04 PM
Posted 07 December 2012 - 12:46 AM
What do you see Daniel?
Somehow I didn't document Pismis 24, so I was curious about some of the others description of it. I like obscure and peculiar objects. With that said, Buddy and several others gave me some ideas.
Posted 07 December 2012 - 07:36 PM
Posted 08 December 2012 - 10:41 AM
Pismis sounds like an unfortunate incident in the bathroom...