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.
Best regards
AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
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AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
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
Franco
Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Excellent images. Always great to see what aperture and experience can produce. Thanks.
Phil
Phil
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
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 :
I have a test image comparing both F-ratio somewhere on my website.
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 :
I have a test image comparing both F-ratio somewhere on my website.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Wow! I would give anything to have such nice photos as these
Alexandra
Alexandra
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Exquisite detail Christian.
Christopher
"Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which 'are' there.". -Feynman
"Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which 'are' there.". -Feynman
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Very nice shots indeed Christian!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: AR2740 & 2741 in Ha with the C8 EdgeHD on May 10
Outstanding image Christian...well done
Brian
Brian
Brian Colville
Maple Ridge Observatory
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Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM