2020.06.09 H-a Full Disk and AR12765 closeup with C11

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Csve
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2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by Csve »

2020.06.09
AR12765
FD: Lunt LS50THa, Astronomik Ha, Coronado BF10, asi178mm.
Closeup: Aries DERF, C11HD, AstronomikCLS, TeleVue Powermate 4, DayStar Quark Combo, DayStar Focal Reducer, asi174mm. Focal length about 5500mm.
Best resolution i ever had with C11 in Ha.
2020_06_09_094512_AS_F100_l4_ap4564_LR050.png
2020_06_09_094512_AS_F100_l4_ap4564_LR050.png (2.03 MiB) Viewed 485 times
2020_06_09_094512_AS_F100_l4_ap4564_LR050_color.png
2020_06_09_094512_AS_F100_l4_ap4564_LR050_color.png (2.89 MiB) Viewed 485 times
2020_06_09_091234_AS_F800_l6_ap2829_LR100_stitch34.png
2020_06_09_091234_AS_F800_l6_ap2829_LR100_stitch34.png (1.61 MiB) Viewed 485 times
2020_06_09_091234_AS_F800_l6_ap2829_LR100_stitch34_color.png
2020_06_09_091234_AS_F800_l6_ap2829_LR100_stitch34_color.png (2.52 MiB) Viewed 485 times
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Valery
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Re: 2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by Valery »

The resolution is really high, Vlad. However it seems the Quark was not tuned exactly at the H-a core - photosphereic granulation is easy seen.

Am I correct guessing the F/D was F/42 at the Quark etalon?


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Re: 2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by Csve »

I know. I'll try to tune it better next session.
Focal length is very close to 5500, I measured it by limb radius. But reduser was used with little bit higher backfocus, so reduction is about 0.45. Looks like F/D was about 43-44.


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Re: 2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by marktownley »

These came out well!


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Re: 2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by yltansg »

Hi Vlad,

Details are unbelievable in close-ups with x4 Powermate!!

Alfred


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Re: 2020.06.09 H-a Full Disk and AR12765 closeup with C11

Post by JochenM »

Excellent results.


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