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Cocoon Galaxy Arp 269 or NGC 4490 and NGC 4485

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#1 frank5817

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Posted 08 June 2013 - 10:10 PM

Long ago these two spiral galaxies collided and created the irregular shaped forms we see through telescopes today. In the spring and early summer I enjoy looking at these two galaxies when the transparent night sky permits.
They are easy to locate one Moon diameter to the northeast of Beta Canus Venaticorium. Both are reasonably bright and fairly easy to pick out even in light polluted skies. NGC 4490 is visual magnitude 9.8 and NGC 4485 shines less at magnitude 12.5.
Since the view was pretty good, I decided to capture them in a sketch after a long look.

Sketching:
Date and Time: 06-08-2013, 04:30-04:50 UT
Scope: 13.1” f/6 Dobsonian. 21 mm wide field eyepiece 95X
8”x 10” 400 series black Strathmore Artagain paper,
white Conte’pastel pencil, a blending stump, plastic eraser.
Seeing: Pickering 7/10
Transparency: Average 3/5
Temperature: 50°F ( 10°C )

Frank McCabe :)

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#2 frank5817

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Posted 08 June 2013 - 11:34 PM

Here is another sketch of another bright galaxy.
M63, the Sunflower Galaxy


There are a handful of bright springtime galaxies that can be reached by modest telescopes in the light polluted south suburbs of Chicago. At approximately 9th magnitude M-63 is one of those galaxies. A spiral galaxy with a bright central bulge of about 4”of arc, this galaxy quickly drops off in brightness where you might hope to see many short spiral arms and knotty dust bands. The spiral arms were not detected at all.
This galaxy is easily located between Cor Caroli in Canes Venatici and Alkaid in Ursa Major. It was discovered 234 years ago this month by Pierre Méchain.

Sketching:

8.5”x11” white duplicating paper; 4B graphite pencil and a blending stump
Scanned and inverted
Scope: 13.1” f/6 Dobsonian: 21 mm widefield eyepiece 95X
Date and Time: 06-4-2013, 04:00-04:30 UT
Temperature: 60 °F (15°C)
Seeing: Pickering 6/10
Transparency: Good 4/5

Frank McCabe :)

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#3 Jef De Wit

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Posted 09 June 2013 - 04:06 AM

Frank, fine to see some deepsky from you!

#4 PeterDob

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Posted 09 June 2013 - 04:10 AM

Ooooo... That lovely couple is one of my all-time favourites! Actually, I wanted to make a drawing of them too the other night, but it turned out they had just disappeared behind my shack so I turned to DRA instead. Wonderful drawings, Frank! I'm sure you spent quite some time behind the eyepiece making them!

Peter

#5 Andrev

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Posted 09 June 2013 - 05:06 AM

Very nice Frank. You certainly have a great talent in night sketching too. Beautiful job.

Andre.

#6 cpr1

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Posted 09 June 2013 - 09:48 AM

Nice work Frank. I Sunflower is a great showpiece object that usually shows lots of detail I find. Impressive.

#7 frank5817

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Posted 09 June 2013 - 01:15 PM

Jef, Peter, Andre and Christopher,

Thank you all for your comments and kind words.
Most of you would not consider looking for galaxies from my yard but every now and then you can actually see something.

Christopher,
Those are two beautiful looking telescopes you have. :dob: :dob:

Frank :)

#8 JayinUT

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Posted 09 June 2013 - 05:10 PM

Frank,

Excellent captures. I was doing triplets and more last night with NGC 4270, 4271 and 4281 with NGC 4261 and NGC 4260. Then a few others around the sky. Thanks for sharing, I always enjoy your DSO work (and your other work too).

#9 cpr1

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Posted 09 June 2013 - 06:32 PM

Thanks for the comments on the scopes Frank.

#10 kenrenard

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Posted 09 June 2013 - 07:45 PM

Frank,
Nice work. Very good detail. 4485 and 4490 are new to me. Fine job on the Sunflower Galaxy.

Ken

#11 Tommy5

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Posted 09 June 2013 - 08:48 PM

great sketches of those far away galaxies, congrads on your drawings from our lp skies.

#12 frank5817

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Posted 10 June 2013 - 09:20 AM

Jay, Ken and Tommy,

Thanks you for your remarks.
More clear nights for us all would be great.

Frank :)

#13 niteskystargazer

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Posted 10 June 2013 - 10:00 AM

Frank,

Very good sketches of NGC 4490 NGC 4485 & M-63 :),

CS,KLU,

:thanx:,

Tom

#14 JimPie

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Posted 10 June 2013 - 10:01 AM

Nice DEEP SKY sketches Frank,
I'm in white zone and can still see a handful of galaxies with my scope.

#15 ericj

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Posted 10 June 2013 - 07:38 PM

Very fine sketches Frank.

Best,

Eric

#16 frank5817

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Posted 10 June 2013 - 07:46 PM

Tom, Jim, Eric,

Thank you for your kind words.

Frank :)

#17 Achernar

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Posted 10 June 2013 - 10:15 PM

This is a neat pair of interacting galaxies, I can plainly see how the smaller one is being distorted by the gravity of the larger galaxy through my own 10-inch Dob. A supernova has taken place in recent years in NGC-4485. A good one for 8 and 10-inch telescopes under good skies. Nice job on the drawing..... :bow:

Taras

#18 frank5817

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Posted 11 June 2013 - 10:01 PM

Taras,

Thanks and yes I remember the supernova back about 5 or 6 years.

Frank :)

#19 Scanning4Comets

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Posted 24 April 2015 - 12:25 AM

Nice drawings Frank !!!! I stumbled upon NGC-4490 / 4485 when looking around the Canes Venatici / Coma Bernices area last Friday....but I went a bit higher in mag @ 150x using an 8mm Delos in my 10" reflector.......I found this to be a really nice pair of Galaxies!

 

I also saw M-63, (Sunflower), and also M-64, (Blackeye), the same night.

 

And then I found mt favorite galaxy of all: NGC-4565 !!!!

 

Thanks for sharing...it enabled me to see your view of the same treat! :grin:

 

Cheers and clear skies!


Edited by Scanning4Comets, 24 April 2015 - 12:26 AM.


#20 Uwe Pilz

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Posted 24 April 2015 - 02:00 AM

It was many years ago that I observed all Arp galaxies of the northern sky brighter 12 mag. All of them were easily visible in my 12 inch dobsonian and in most cases I could detect some signs of peculiarity. This was a very interesting observing project.
I enjoy finding other sketches of Arp galaxies, thank you.



#21 frank5817

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Posted 24 April 2015 - 09:06 AM

Markus and Uwe,

 

Thank you for your comments.

At first I wondered where these came from; Oh yes, 2 years ago.

 

Frank :)


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#22 Warmvet

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Posted 25 April 2015 - 12:29 PM

Nice work Frank, Chicago light must be a challenge. Cocoon is one of my favorites and its galaxy time again!

 

Cindy



#23 CarlosEH

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Posted 26 April 2015 - 02:48 AM

Frank,

 

Excellent observations of the Cocoon Galaxy/Arp 269/NGC 4485/4490 and the Sunflower Galaxy (M63). You have recorded fine details over both set of objects. Thank you for sharing them with us all.

 

Regards.

Carlos


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#24 frank5817

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Posted 27 April 2015 - 01:12 AM

Cindy and Carlos,

Thank you both very much for your kind words concerning these galaxy sketches from the past. I was a little surprised to see them here again but it is galaxy time as you say, Cindy. I need a good night to see and sketch them from Chicagoland but on occasion it does happen.
Carlos it is great to see you sketching here again.

Frank :)

#25 blb

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Posted 29 April 2015 - 10:25 AM

Frank,
Great job sketching this pair of galaxies. I too sketched them a few years ago now. I was using my 10" dob with a 10mm eyepiece for a magnification of 120x. I love the almost tear drop shape of 4490 and how it seems to curl toward 4485. Here is my sketch, I thought you might enjoy the comparison.

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