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Old 27-06-2011, 09:32 PM
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barx1963 (Malcolm)
Bright the hawk's flight

barx1963 is offline
 
Join Date: Nov 2008
Location: Mt Duneed Vic
Posts: 3,980
Here is my note for NGC 6124 from April last year
NGC6124 (Caldwell 75) Open Cluster in Scorpius
RA 16 25 17.2 Dec -40 40 00 Mag 5.8 Diam’ 40 No of Stars 100 Mag Brightest Star 9.0 Type cl (Open Cluster)
From NGC 6231 move in p 2.5deg to pair of mag 6 stars, then scan to Sp for a line of 3 stars of similar mag running Np to Sf about 2deg long. This line points at cluster which is just visible in cluster. Sparse with not many bright stars, but fairly large, very pretty, best with low power.
And here is one on NGC 6139 from April this year

NGC 6139 Globular Cluster in Scorpius
RA 16 27 40.4 Dec -38 50 56 Total Vm 9.1 Brightest Star Vm 15.0 HB Vm 17.9 Diam’ 8.2 Conc Class 2

From Mu Scorpii a right angled asterism 1deg long lies 2.5deg to p. From this a group of 3 stars mag 5 lies 3deg to p. Target forms Sf corner of a large parallelogram with these. Small with a brightish core, some granularity at 115x but appears just beyond being resolveable.

Post Observation Notes. Also known as Dunlop 536, discovered by Dunlop May 13 1826 at Parramatta. DSS Image http://spider.seds.org/ngc/ngcdss.cgi?obj=NGC!6139&r=16:27.7&d =-38:51&e=J2000&h=15&w=15&f=GIF&c=non e shows the scattered stars around the central core that give impression that it nearly resolveable. Given brightest star is only mag 15, would make an interesting test for a larger scope.

And for NGC 6144 from April 15th last year

NGC 6144 Globular Cluster in Scorpius
RA 16 27 14.1 Dec -26 01 29 Total V Mag 9.0 Brightest Star V Mag 13.4 HB V Mag 16.5 Diam 7.4’ Concentration Class 11
About 30’ p and just N of Alpha Scorpio (Antares) Very faint. 1 bright star in foreground. Moderate power (115x) reveals some stars. Like M4 (NGC 6121) nearby it appears to be dimmed by dust and by brightness of the milky way around this area.

Observed NGC 6444 twice this year, haven't written up yet. On 29/4 noted that it looked like an "arrowhead". On 30/5 counted nearly 30 stars.

Also saw NGC 6522 and 6528 that same night, lovely pairs of globs in the same field.

The others apart from M7 I haven't caught up with yet.

Malcolm
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