Sunspot In AR2738

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Sunspot in AR2738
Taken by Martin R Wise on April 18, 2019 @ Trenton, Florida, USA

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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2019:04:17 15:03:57

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Details:

The great sunspot in AR2738 approaches the limb, trailed by another new small set of pores; the sunspot still has interesting features within the spot itself extending deep into the umbra. Presented in high resolution hydrogen alpha, inverted and native, false color and native B&W. Captured with a 200mm F21 solar scope system and an IMX174 sensor.

Photographer's website:

http://https://www.astrobin.com/users/MalVeauX/

Comments

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You said you captured with a 200mm F21 solar scope system. Can you please share the name of this telescope?

Posted by Philip Smith 2019-04-18 14:48:56

Hi Philip,

Yes, its a C8 Edge HD SCT telescope with a full aperture Aires 214mm triband D-ERF with a Baader 2 UV/IR block filter to handle the thermal load. From there, its a Daystar Quark Chromosphere for the HA filtration, operating at F42 at the etalon. I focal reducer it with a 0.5x focal reducer on the nose of a camera to F21, and sample with the ASI174MMs (IMX174 sensor) big 5.86um pixel sizes.

Posted by MalVeauX 2019-04-20 14:59:05

Heres the scope:

https://flic.kr/p/2eLDdTS

Posted by MalVeauX 2019-04-20 15:02:50

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