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Transit of Mercury in the Spicule Layer. Phil took this great image with his Quantum 6 Scope, Solar Spectrum etalon and PGR Camera.

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AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

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christian viladrich
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AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by christian viladrich » Fri May 10, 2019 8:20 pm

Hello,

This morning the large passing cumulus kept respectfully at a distance of the Sun for at least 2 hours. This was quite unexpected since the forecast said it was going to rain.
The current two sunspots are pretty small though the surrounding activity gave nice views.

Image

Image

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Christian Viladrich
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by ffellah » Sat May 11, 2019 12:40 am

Super images, Christian. I see you are using the F/35 telecentric: how do you like it compared to the 27.5 ? To use that, the seeing must be exceptional ? Very fine processing for these two images..also using the SS RG

Franco

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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by Astrophil » Sat May 11, 2019 1:13 am

Excellent images. Always great to see what aperture and experience can produce. Thanks.

Phil

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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by christian viladrich » Sat May 11, 2019 9:16 am

Thanks guys :-)

The F/35 gives a narrower effective bandpass. The effective bandpass of a 0.3 A filter is about 0.5A at F/27 and 0.4A at F/35 :
Image
I have a test image comparing both F-ratio somewhere on my website.
Christian Viladrich
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Co-author of "Astronomie Solaire"
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by Montana » Sat May 11, 2019 5:51 pm

Wow! I would give anything to have such nice photos as these :bow :bow :hamster:

Alexandra

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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by Christopher » Sat May 11, 2019 8:39 pm

Exquisite detail Christian.
Christopher

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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by MAURITS » Sat May 11, 2019 8:48 pm

Excellent images Christian.
Regards,
Maurits

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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by marktownley » Sun May 12, 2019 3:39 pm

Very nice shots indeed Christian!
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10

Post by MapleRidge » Sun May 12, 2019 3:54 pm

Outstanding image Christian...well done :bow

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