NGC 5466 (GCL 27) Globular Cluster in Bootes

Located at: RA 14 hours 05 minutes 27 seconds, Dec +28 degrees 32 minutes 04 seconds

Size: 9.0' Magnitude: 9.2 Class: 12

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Image:

Lumicon Deep Sky filter, 240 minutes (24 x 10 minute subs), 05/29/30/31/2007

Processing:

CCDStack 1.2, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: This is my first image using my old Lumicon 'Deep Sky' filter. Lots of moon in the sky for this sequence (from 92 to 99.7%), plus a very hazy sky ... not optimal sky conditions (even for my house), so I thought I'd try something other than the red Hoya filter. Image turned out OK, so I'll leave it on for a while and see how it works on some galaxies.

See the 14.5" version.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 5466
NGC 5466
14 05 27.3 +28 32 04
V = 9.0;  Size 9

17.5" (6/3/00): large, low surface brightness globular, 7'-8' in diameter.  Has 
a ragged, irregular surface brightness to the core and halo.  About 50-60 mag 
14-15.5 stars are resolved at 280x-380x.  The brighter core is relatively large, 
perhaps 4' in diameter and appears offset to the west side of the resolved 
stars.  Many faint stars are peppered across the core.

17.5" (6/6/86): 40-50 mag 14-15 stars resolved at 220x in a 7' diameter.  Very 
spread out like a fairly rich open cluster with no distinct edges and only a 
weak concentration.

13" (5/26/84): roughly three dozen stars resolved about 14th magnitude.  Visible 
in 18x80 finder.

13" (5/14/83): few dozen mag 14 stars resolved across disc over extensive 
background haze.

8" (6/5/81): fairly large, low surface brightness with a "loose" structure.  A 
few faint stars are resolved across the disk at 100-165x.

- by Steve Gottlieb