Binocular Messiers

June 27, 2003

Observer: Tom Campbell
Location: Iola, Kansas (Long: 95°24'W Lat: 37°55'N)
Equipment: Simmons 10x50WA Binoculars
Time: 11:15pm - 12:00am CDT (04:15-05:00 UT)
Transparency: Mostly Clear (7/10)
Seeing: Mostly Stable (7/10)
Weather: Temperatures in the 60s. There was little or no breeze.


Observing Summary:

  • OPHIUCHUS: M9, M19, M62, NGC-6342
  • SAGITTARIUS: M22, M23
  • SCORPIUS: M6, M7
  • SCUTUM: M26


  • The weather patterns were unstable tonight. It had been clear most of the day, but a front rolled through a few hours before dusk and didn't clear out until twilight. I decided to catch up on some of my binocular observing lists.



    M 19 Ophiuchus Globular Cluster 11:15pm CDT
    NGC 6273 RA: 17h 02m 38s Dec: -26° 16' Mag: 6.8

    This globular was fairly easy to detect as a faint smudge with a nearly stellar core. What stood out the most was that there were three pairs of optical doubles surrounding the eastern side of the cluster, seeming to point right at the globular.

     
     
    M 62 Ophiuchus Globular Cluster 11:20pm CDT
    NGC 6266 RA: 17h 01m 13s Dec: -30° 07' Mag: 6.4

    This globular was rather large, but difficult to detect without using averted vision. It had a stellar core.

     
     
    M 9 Ophiuchus Globular Cluster 11:25pm CDT
    NGC 6333 RA: 17h 19m 12s Dec: -18° 31' Mag: 7.8

    This globular was really faint - only visible with averted vision. It only appeared as a faint smudge of light.

     
     
    NGC 6342 Ophiuchus Globular Cluster 11:30pm CDT
      RA: 17h 21m 10s Dec: -19° 35' Mag: 9.5

    This cluster was in the same field of view as M9. A stellar core was sometimes visible.

     
     
    M 23 Sagittarius Open Cluster 11:35pm CDT
    NGC 6494 RA: 17h 56m 54s Dec: -19° 01' Mag: 5.5

    This cluster appeared as a dim wispy cloud. With averted vision, one or two stars popped into view.

     
     
    M 26 Scutum Globular Cluster 11:40pm CDT
    NGC 6694 RA: 18h 45m 12s Dec: -09° 23' Mag: 8.0

    This cluster was really faint, only visible with averted vision.

     
     
    M 22 Sagittarius Globular Cluster 11:45pm CDT
    NGC 6656 RA: 18h 36m 24s Dec: -23° 54' Mag: 5.2

    This roundish globular was really large. No stars could be resolved, although there was a noticeable brightening in the center.

     
     
    M 7 (Ptolemy's Cluster) Scorpius Open Cluster 11:50pm CDT
    NGC 6475 RA: 17h 53m 54s Dec: -34° 47' Mag: 3.3

    This open cluster appeared rich and wide, a great target for binoculars. About two dozen stars were visible, with the richest concentration near the center.

     
     
    M 6 (Butterfly) Scorpius Open Cluster 11:55pm CDT
    NGC 6405 RA: 17h 40m 25s Dec: -32° 14' Mag: 4.2

    This cluster appeared as an oval-shaped patch of nebulosity with about 7-8 stars visible within.

     



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