C/2013 US10 (Comet Catalina)

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C/2013 US10 (Comet Catalina)
Taken by Akihiro Yamazaki on December 4, 2015 @ Yamanashi, Japan

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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2015:12:05 18:26:55

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Details:

2015/12/4(UT) 20:05:15~ (30sec x 36pics) AP155EDF(F7)＋Telecompresser F5.3 f = 820mm SONY-A7S ISO2500

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Comments

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Very unusual structure in the ion tail.

Posted by cbellh47 2015-12-05 06:03:39

wooooooooooooooooooooooooooooooooooooowww

Posted by astromazzo 2015-12-05 07:49:10

I it is my conjecture that this comets core is composed two or three pieces and they are spiraling each other....

Posted by amplelight 2015-12-05 16:08:32

Very exciting photo!

Posted by Celia70 2015-12-05 19:47:25

amazing photo Akihiro-san! the ion tail colors are phenomenal. did you use a sky glow or other color filters, and I assume this is the stock A7s with IR blocked?

Posted by swansong 2015-12-05 22:47:01

Hello swansong
Im taking a picture without filters.
And A7S is modified for the astronomy(Ha pass).

Posted by hasyama 2015-12-06 19:10:33

Beautiful imaging Akihiro !

I use a Sony NEX 5R , not quite the capability of the Sony A7, yet I also see that you have employed a 155mm f/7 refractor + Telecompresser F5.3 f = 820mm.
Thank you for sharing all your optical equipment and methods information.

Mark Seibold, Artist-Astronomer, Portland-Sandy Oregon

Posted by markseibold 2015-12-07 00:34:05

ＡＰＯＤkyuu no mono desuna-a!

Posted by Seiichi 2015-12-07 16:31:13

Mr. Mark
Thanks for your message.
Ion tail of this day had an interesting shape, I was surprised.

Akihiro Yamazaki

Posted by hasyama 2015-12-08 01:27:54

Mr.Seiichi
Komento Arigatou gozaimasu. ion tail no hennkaha, kyuugekidesitane.
comet ha korega daigomidesu.

Posted by hasyama 2015-12-08 01:30:26

perfect !!
what is field of view (FOV) of this image ??

Posted by brahimb 2015-12-13 03:16:12

Hello brahimb,
The view is about 1.7 x 2.5 deg.

Posted by hasyama 2015-12-18 02:52:48

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