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Lambda Cygni

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#1 azure1961p

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Posted 29 August 2019 - 01:58 PM

I did this one years ago. However it was a very finished mixed media thing on Bainbridge 43.  I made it all polished and true but over time it's suffered storage -move abuses and so here it is, true to the original that was true to THE original.

 

At the time , 1993 it was my favorites because of that striking gentle powder blue. Tucked in there , it needed 364x to hash it out with more clarity and I was just in awe.  The reflector was only months old and I hadn't yet  *proved it* to myself.  A few nights under the stars at high-power and true to George Clements (optician) suggestion I do doubles with the reflector - it performed text book well.  I never even really cared about doubles prior but after these samplings - I found a new interest in these challenging binary denizens of the deep sky.

 

Hope you like.

 

Pete 

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Edited by azure1961p, 29 August 2019 - 02:41 PM.

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#2 niteskystargazer

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Posted 30 August 2019 - 02:12 PM

Pete,

 

Nice sketch of Lambda Cygni smile.gif ,

 

CS,KLU,

 

thanx.gif ,

 

Tom



#3 frank5817

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Posted 30 August 2019 - 10:40 PM

Pete, Nice sketch and split with the 8"  long focal length scope.

 

Frank :)



#4 Asbytec

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Posted 02 September 2019 - 06:46 AM

I might have to see that powder blue, Pete. The only double in Cyg I've seen is Delta Cyg. 



#5 azure1961p

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Posted 02 September 2019 - 07:57 AM

Yeah it's my fav, though Delta's nice.

 

Pete


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#6 Sasa

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Posted 05 September 2019 - 04:50 AM

Yeah it's my fav, though Delta's nice.

 

Pete

Lambda Cygni is ma fav too! I still remember first light night with AS110/1650. Lambda looked like a textbook snowman pair! Excellent capture.



#7 azure1961p

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Posted 05 September 2019 - 08:20 AM

Thanks Alex! Been busy and meaning to weigh in on your Messiers and such.

 

Norme, I overstated the powder blue in the drawing unfortunately.  I compared it to my original color pencil drawing and it's more Ashen - still blue though.  Oh, the Pleidies double - is that the 1" double in the center of the box?

 

Thanks guys.

 

Pete



#8 Chiron0224

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Posted 06 September 2019 - 09:37 AM

Very nice observation and sketch!  I'll have to check and see if this is one of the targets on the AL double star list.



#9 Uwe Pilz

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Posted 07 September 2019 - 07:07 AM

I splitted it with my 4 inch refractor, but I remarked it as difficult:

 

lambdaCyg.jpg


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#10 azure1961p

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Posted 07 September 2019 - 03:01 PM

I imagine it would be as it was a delicate observation with the 8 despite the drawing making it look so wide. Really, nice catch Uwe.

 

Pete



#11 Sasa

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Posted 07 September 2019 - 05:41 PM

I splitted it with my 4 inch refractor, but I remarked it as difficult:

 

lambdaCyg.jpg

I was able to detect the elongation, and get correct PA of it (without prior knowledge) in 82mm.


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#12 azure1961p

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Posted 08 September 2019 - 09:17 AM

Elongation (I think) is a lot more difficult than seeing the Dawes *notch* which for you Alex should be about 1.5".   I've gotten roughly half my Dawes as you have with the 8. High-power, good seeing and attentive focus makes it happen.  I still haven't tried for this with the C90 and I've got concerns about my success only because the magnitude difference is steeper than when I did my record elongation detection of very close magnitudes.  But you got it with your refractor (!) .  I'll Certainly let you know if I manage with the Mak .   

 

I know Thomas, aka ASTROJENSEN saw duplicity with Zeta Herculis but so far no luck for me .  Seeing s been poor too so.

 

Thanks Alex for the input here.

 

Pete


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#13 Uwe Pilz

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Posted 09 September 2019 - 10:09 AM

> know Thomas, aka ASTROJENSEN saw duplicity with Zeta Herculis

 

To see such close double requires a very well aligned instrument - the last bit of coma may be mixed with weaker secondaries which may be located in the first ring.

Beside this, you have to learn to split these problematic doubles. I learned it because I joined Sissy Haas' unequal double stars project some time ago. It is full of such challenges.


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#14 azure1961p

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Posted 09 September 2019 - 12:20 PM

Thanks Uwe.  I'm not giving up just yet. You can't when the seeing is lousy.  Too, I agree with all your comments.  Collimation is a tad off and needs correcting. Wouldn't it be a fine example then if it appeared after that adjustment.

 

Rough seeing this summer Uwe. Hope it's been better in Leipzig.

 

Pete




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