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NGC 1664 - Open cluster in Auriga

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#1 cloudbuster

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Posted 16 January 2020 - 07:55 AM

NGC 1664 is a fairly large, moderately rich and loose open cluster in Auriga. The heart-shape (or stingray? or kite?) is easily recognized and stands out well against the sky background. A beautiful example of "connecting the dots" smile.png

 

NGC 1664.jpg

 

Regards, Martijn


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#2 Hubbletrouble

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Posted 16 January 2020 - 08:31 AM

Beautiful!

I often see these sketches here...how are they produced? 
Are you using a software to reverse the sketch to white stars on black background?

Many thanks



#3 cloudbuster

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Posted 16 January 2020 - 09:49 AM

Thank you smile.png

 

There are a lot of different techniques out there to create a sketch and everybody uses the one that he/she prefers. 

For my sketches I use GIMP (a free program) to recreate the field sketch. The result that you see here is entirely digital.

 

I use a "eyepiece view" template and add it as a layer on top of the field sketch (after scanning it). On the template I add the stars, thereby keeping the exact same position of the dots on the field sketch. During the observation, I write down notes on the field sketch about brightness, color, shape etc. that will help me to recreate the view as realistically as possible. Total time at the eyepiece is about 90 minutes and another 60 minutes is spent in GIMP.

 

I hope this explains a bit about the method I use. 

 

Regards, Martijn


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#4 pedrovillamiel

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Posted 16 January 2020 - 11:20 AM

Hi Martijn. I work very well.
I knew this cluster as La Cometa. It is a very attractive eye. Thanks for teaching.
Greetings. Pedro.



#5 frank5817

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Posted 16 January 2020 - 03:51 PM

Martijn,

 

Nice to see your sketch of this fine open cluster.

Excellent sketching and format.

 

Frank :)



#6 niteskystargazer

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Posted 16 January 2020 - 04:37 PM

Martijn,

 

Very nice sketch of NGC 1664 - Open cluster (In Auriga) smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#7 Astro-Master

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Posted 17 January 2020 - 11:50 PM

Martijn,

 

Nice rendition of NGC 1664, its one of my favorites in Auriga.  Before it crosses the meridian it looks like a toadstool, or an umbrella with a curved handle in my 18" Dob., but it also looks like a kite.

 

Bruce



#8 sunnyday

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Posted 17 January 2020 - 11:51 PM

nice work 



#9 DDEV

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Posted 18 January 2020 - 07:22 AM

Oh how I really enjoy viewing your sketches Martjin! Each of your sketches transport me to the eyepiece. I always feel I'm actually there viewing the object.

 

Very well done, and thank you for sharing your wonderful skill with us.

 

Darren.

 

And I see a stingray for sure!


Edited by DDEV, 18 January 2020 - 07:23 AM.


#10 cloudbuster

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Posted 18 January 2020 - 10:47 AM

Thank you for you kind comments and likes smile.png

 

Hoping to get some more observing time this weekend, however it will be in between rain showers for sure...

 

Regards, Martijn



#11 Thonolan

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Posted 22 January 2020 - 06:45 PM

Definitely one of the most realistic sketches I've ever seen - I can almost imagine myself at the eyepiece.

 

Echt onder de indruk wink.gif

 

PS: this is particularly impressive as every time I visit the Netherlands (something I do quite often) I can't help thinking it's not exactly the best country to be an amateur astronomer. Hard to find truly dark sites and of course no chace of observing at altitude. Plus lots of clouds and rain.


Edited by Thonolan, 22 January 2020 - 06:48 PM.


#12 REC

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Posted 23 January 2020 - 02:48 PM

NGC 1664 is a fairly large, moderately rich and loose open cluster in Auriga. The heart-shape (or stingray? or kite?) is easily recognized and stands out well against the sky background. A beautiful example of "connecting the dots" smile.png

 

attachicon.gifNGC 1664.jpg

 

Regards, Martijn

Cloudbuster, excellent rendition of what that cluster looks like in the eyepiece! By chance do you have others of M36,37 and 38 in Auriga? Sure would like to see them if you do.

 

Thanks, Bob



#13 cloudbuster

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Posted 23 January 2020 - 05:51 PM

Thank you Thonolan and Bob.

 

Bob, you can find my sketches of M36, M37 and M38 here on the sketching forum or on my website (in my signature).

 

Regards, Martijn



#14 REC

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Posted 15 February 2020 - 03:44 PM

Thank you Thonolan and Bob.

 

Bob, you can find my sketches of M36, M37 and M38 here on the sketching forum or on my website (in my signature).

 

Regards, Martijn

What a wonderful website filled with all your goodies! Now I can get a pretty good idea what the objects will look like in my 10" Dob as you did a lot of them with a 10". Beautiful scopes you have! Some of those Auriga clusters show more stars with my 8" SCT, but then we are talking about two different focal lengths, F/1250 vs f/2000mm. I wonder what they would look like with the same power? I'll have to use my 13mm T6 in the dob for 96x and a 20mm in the SCT for 100x.


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