Author Topic: NGC4435-4438 from Calar Alto Observatory  (Read 2509 times)

Offline vicent_peris

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NGC4435-4438 from Calar Alto Observatory
« on: 2016 October 14 15:52:11 »
Hi,

Here you have an image of the NGC4435-4438 galaxy pair in the Virgo Cluster from my astrophotography project at Calar Alto Observatory. It's a H-alpha/RGB composite made with the 1.23 meter telescope. The RGB data comes from data acquired with two different cameras with 2Kx2K and 4Kx4K CCD sensors with a total exposure time of 14 hours. The narrowband data was acquired with the 2Kx2K camera with a total exposure time of 20 hours. Here is the image:



And here at full resolution:

http://astrofoto.es/astrofoto/foros/NGC4435-4438.jpg

This image shows the H-alpha structure that links these galaxies with M86. The only photo recording this structure was acquired with a 4-meter telescope and is aesthetically horrible.

Here you can see the isolated H-alpha emission:



This image was created with some of the techniques I teach in my intensive workshops to blend the narrow and broad band emissions.


Best regards,
Vicent.

Offline Alejandro Tombolini

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #1 on: 2016 October 15 11:58:39 »
Excellent work Vicent, the three images. I want that telescope!!! >:D
Saludos, Alejandro.

Offline Herbert_W

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #2 on: 2016 October 15 13:07:29 »
Hi Vicent!

That's an astonishing image - unbelievable details and background objects.

And a brilliant idea to select this object.

Congratulation!!

Best regards!
Herbert, Austria

Offline Ignacio

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #3 on: 2016 October 18 06:45:44 »
Terrific images, wow!

Ignacio

Offline kkretzsch

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #4 on: 2016 October 18 07:36:39 »
Fantastic image. Also the number of background galaxies is amazing ...

Offline Flavio

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #5 on: 2016 October 19 08:41:17 »
My God, I am still recovering from the surprise: what an impressively deep, information-rich image!

Thanks for sharing this one, truly superb.

Regards,

Flavio

Offline tdgm

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Re: NGC4435-4438 from Calar Alto Observatory
« Reply #6 on: 2016 October 20 22:01:58 »
OMG