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Observations of object "M10":

M10 (Globular Cluster, in Ophiuchus)
Observer: Sriram.M.Gubbi (e-mail: sriram_gubbi@yahoo.co.in, web: http://dino.lm.com/artists/display.php?name=sriram_gubbi)
Instrument: 6-inch other   Location: Bangalore, Karnataka, India
Light pollution: moderate   Transparency: good   Seeing: good
Time: Fri Jan 20 05:20:00 2006 UT   Obs. no.: 1475

Appeared a bit loose and slightly oval, but bright. I think I have seen this with my 2 inch about an year ago.

M10 (Globular Cluster, in Ophiuchus)
Observer: Giorgos Koronis (e-mail: giorgos.koronis@lies.com)
Instrument: 8-inch Dobsonian reflector   Location: Kalamata, Greece
Light pollution: moderate   Transparency: good   Seeing: excellent
Time: Sun May 23 22:31:00 2004 UT   Obs. no.: 1005

Nice globular cluster!Easily resolved with a 8.8mm UWA eyepiece(104x).Many stars visible with direct vision at its edges.With averted vision stars visible across the face of the globular over a milky background.

M10 (Globular Cluster, in Ophiuchus)
Observer: Mark Stutzman (e-mail: mark@cca.ci.coatesville.pa.us)
Instrument: 4 1/2-inch equatorial reflector   Location: Gilbertsville, PA, usa
Light pollution: moderate   Transparency: fair   Seeing: fair
Time: Thu Jun 25 02:55:00 1998 UT   Obs. no.: 349

I spent about an hour tonight before the dew took over my enviorment looking all throughout this great constellation. Lots of nice open and globular clusters can be found within it's boundries. Well worth a longer look another time!

M10 (Globular Cluster, in Ophiuchus)
Observer: John Callender (e-mail: jbc@west.net, web: http://www.west.net/~jbc/)
Instrument: 8-inch Dobsonian reflector   Location: Carpinteria, CA, USA
Light pollution: light   Transparency: good   Seeing: excellent
Time: Sat Jul 12 08:00:00 1997 UT   Obs. no.: 210

Easily swept up at 49x. A big, bright globular, the brigher stars resolved at 49x, with a fairly bright central glow behind them.

M10 (Globular Cluster, in Ophiuchus)
Observer: Jim Tomney (e-mail: skytour@erols.com, web: http://users.aol.com/JTomney)
Instrument: 6-inch equatorial reflector   Location: Marriotsville (Alpha Ridge), MD, USA
Light pollution: light   Transparency: good   Seeing: good
Time: Wed Jun 4 15:15:00 1997 UT   Obs. no.: 156

Amid the semi-dark skies at Alpha Ridge I was surprised at how readily I could scoop up M10 and its neighbor M12 in the 7x50 binoculars. I'd guesstimate the magnitude to be somewhere around8-8.5 for these two. The star hop was a little tedious but not bad, and panning with the 42mm Ultima soon brought M10 into view. It was steady if not powerful, strong enough to take direct vision yet improved by averted vision. The field at 28x was pleasant but had nothing significant. At 75x the view was best, bringing forth a little speckling of resolution on the fringes when averted vision was used. The globular has a rather even distribution of light with gradual and subtle brightening towards the core. The visible size would be somewhere in the neighborhood of 5 arc-minutes.Bumping the magnification up to 124x did little to improve the view although it may have been possible with study to tease a bit more detail from the globular; in general 124x seemed to betoo much magnification for M10 as it became dimmer.

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