A brief cluster duster last night 6.16.21

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pakarinen United States of America
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A brief cluster duster last night 6.16.21

#1

Post by pakarinen »


The weather has been perfect the past few days - mild temps, low humidity, and clear skies after sunset - so I've been scanning around Cygnus and such at random. Last night I decided to hunt a couple of specific open clusters.

First was NGC6633 in Oph. This is a cool little cluster. There's a moderately bright field star next to a bent rectanglar clump of fainter stars. The cluster shape reminded me of a glider-type parachute that people zip left and right with, pull spirals, etc. Since I started before twilight ended, it was fun to watch fainter cluster members appear as it got darker.

A couple degrees south and east of 6633 is IC4756. The similarity to 6633 was striking - another brighter field star in the FOV with the cluster next to it, but 4756 is more diffuse than 6633 and a bit brighter.

Slewed over to IC4665, close to Beta Oph. Comparatively speaking, this one's a monster. Moderately bright stars filled the FOV and reminded me of the Praesepe in extent and brightness.

No session is complete without checking my favorite variable U Sge. Actually, it's my only variable, but what the heck. With Sagitta higher in the sky earlier in the evening, it's become easier to identify U in the FOV. Looks to me like a bent box kite of six stars standing on end just off the Coathanger (correct image):

* U
* *
* *
.

By that time, it was 2315 and I still have to get up for work, so I decided to hang it up. Sky is p. cloudy now and rain is supposedly coming, so that might be it for a few days.
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Re: A brief cluster duster last night 6.16.21

#2

Post by helicon »


Nice open cluster session in Ophiuchus Olen. I wonder sometimes why Charles Messier missed objects in the constellation. Congrats also, on winning the TSS VROD award for today!
-Michael
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Re: A brief cluster duster last night 6.16.21

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Post by Butterfly Maiden »


Congratulations Olen for winning today's VROD.
Vanessa

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Re: A brief cluster duster last night 6.16.21

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Post by Gordon »


Congratulations on the VROD!!!
Gordon
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Re: A brief cluster duster last night 6.16.21

#5

Post by Ylem »


Great report Olen, well written and enticing!

Congratulations on the VROD, well deserved!
Clear Skies,
-Jeff :telescopewink:


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Re: A brief cluster duster last night 6.16.21

#6

Post by Makuser »


Hello Olen. A nice observing report from you in the Cygnus and Ophiuchus region. And it looks like you grabbed some nice open clusters in your session. Thanks for your well written and nice read report Olen, and congratulations on winning the TSS VROD Award today.
Marshall
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Re: A brief cluster duster last night 6.16.21

#7

Post by KingNothing13 »


Nice report Olen, thanks for sharing.

I do like comparing my notes to others, and we both have similar logs for 6633. Not exactly the same, but close enough, and really neat.

Congrats on the VROD!
-- Brett

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Re: A brief cluster duster last night 6.16.21

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Post by Bigzmey »


Nice session pakarinen and congrats on VROD! Ophiuchus is a treasure trove for all sorts of clusters.
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Re: A brief cluster duster last night 6.16.21

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Post by John Baars »


Thanks for your nice report and congratulations on the VROD!
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
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Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
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Re: A brief cluster duster last night 6.16.21

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Post by turboscrew »


Very nice report. I could almost see it in my mind's eye.
And congrats on the VROD!
- Juha

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