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Fairy Ring - A field full of double stars

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#1 cloudbuster

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Posted 09 September 2019 - 04:39 AM

Hi everyone,

 

I was wondering if you were familiar with this asterism called "Fairy Ring" or "Chaple's Arc". It's a large ring of bright and widely separated doubles in the constellation of Cygnus. Four doubles really stand out and all (roughly) point to the center of the ring, but a multitude of dimmer doubles can be found too. The most striking is HJ 1470 with a definite yellow/orange tint, the others appear white/bluish.

 

 

fairy ring.jpg

 

 

HJ 1470.jpg

 

 

Regards, Martijn


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#2 chrysalis

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Posted 09 September 2019 - 03:16 PM

Very familiar. A good go to object on nights when Cygnus is presenting in a favorable location in the sky. Very attractive and contains the yellow and blue double h1470. Good in a widefield.


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#3 Bonco2

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Posted 09 September 2019 - 03:23 PM

Would appreciate someone posting the RA/Dec or reference to another object.

Thanks, Bill



#4 wcw

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Posted 09 September 2019 - 03:37 PM

Would appreciate someone posting the RA/Dec or reference to another object.

Thanks, Bill

 

Scroll down to post #10 for a map:

https://www.cloudyni...s-arc-4-sep-06/


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#5 ssmith

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Posted 09 September 2019 - 07:26 PM

Here is a deep shot of the Fairey Ring - The "Ring" feature definitely gets lost in all the deep stellar noise.  In the next post I have reduced the histogram stretch a bit to allow only the brighter stars to shine through which more closely matches the visual view.

 

Cygnus Fairy Ring HJ1470 120mm 6-23-16 small.jpg


Edited by ssmith, 09 September 2019 - 07:32 PM.

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#6 ssmith

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Posted 09 September 2019 - 07:31 PM

This more closely matches the visual view:

 

Cygnus Fairy Ring HJ1470 120mm 6-23-16 Non Linear Dim.jpg


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#7 nerich

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Posted 10 September 2019 - 12:37 AM

Yes, it's a favorite! I try to take at least a quick peek when I'm in Cygnus. 
Speaking of asterisms, Martijn, I'd love to see you sketch Kemble's Cascade, if you haven't already...



#8 cloudbuster

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Posted 10 September 2019 - 12:53 AM

Thank you for posting the link to the older topic (and RA/dec) and to Steve for the photo's.

@Nick: You will find the sketch of Kemble's Cascade here. Indeed it's a favorite too smile.png

 

Martijn


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#9 nerich

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Posted 10 September 2019 - 01:16 AM

Thank you for posting the link to the older topic (and RA/dec) and to Steve for the photo's.

@Nick: You will find the sketch of Kemble's Cascade here. Indeed it's a favorite too smile.png

 

Martijn

Magnificent!


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#10 PowerM3

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Posted 17 September 2019 - 12:22 AM

Wow, I cant belive I have never seen this. I just took a look with the SV80S LOMO and its quite and amazing sight. Thanks!


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#11 azure1961p

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Posted 17 September 2019 - 03:56 PM

Amazing Martijn and Steve,

 

I didn't know this one existed.  What odd radial pairings eh?  Thanks for posting - both of you.

 

Pete




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