AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

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christian viladrich
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AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by christian viladrich »

Dear All,

Here are some tests of a Ha double stack configuration with the C8 EdgeHD and 210 mm AiryLab ERF filter.
The double stack consists of a DayStar 0.6A PE filter and a Coronado SMn35 0.5 A fused silica etalon.

This one is taken on April 4 at F/27 :
Image

Same day, but 25 min latter at F/35 (resized at 90%). The resolution is a bit better, but not that much,and probably closer to the Ha center line:
Image

On April 5, I was back at F/27 :
Image

Best regards
Christian


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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by JochenM »

Very impressive, Christian.


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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by ffellah »

Excellent results, Christian

Franco


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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by LTHB »

Extremely impressive images, as usual! The old Coronado etalon seems to make for a great double stack. One thing I found striking is the combination of rather long exposure times and a large number of frames. Did you really stack 900 frames per image?

Regards,

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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by Montana »

Wow!! these are gorgeous :bow :bow :hamster: is the gain 19 or 19,000? I think I would have a job to get that high with my ZWO 174.

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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by Starry Jack »

Beautiful


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Quark Chromosphere f27 native, (f14 when focal reduced)
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12nm Filter
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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by Starry Jack »

Beautiful


Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by marktownley »

Very well deserved Spod Christian!


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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by Carbon60 »

Excellent images, Christian. Congratulations on SPOD.

Stu.


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Re: AR2759 on April 4 and 5, C8 EdgeHD and Ha double stack - F/27 & F/35

Post by Ronnie_Clayton »

:shock: :shock: . Amazing details, beautiful images!


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