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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

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Sol from the 1st of December 2018.

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eroel
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Sol from the 1st of December 2018.

Post by eroel » Mon Dec 03, 2018 2:36 pm

Hi:
Went to the rural observatory, beautiful sunny day but with bad seeing, so had time for some shots with the 6" f/12 AP refractor using the ATM Daystar filter and also the Televue 76mm f/7 with a set of old 40mm Coronado filters. for the FD´s. ( love those old Coronado 40, David Lunt paired them)
I just had time for a few shots and made a quick recording and processing and not even correctly oriented the shots. because my wife invited 5 of her girlfriends from school to the ranch, :oops: (well they are over 76, so I had to take them on a tour around the place), so no more solar imaging. :(
Thanks for looking,
Eric.
Sol del 1 de diciembre del 2018-AP-Daystar-1an.jpg
Sol del 1 de diciembre del 2018-AP-Daystar-1an.jpg (256.58 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-AP-Daystar-1neg.jpg
Sol del 1 de diciembre del 2018-AP-Daystar-1neg.jpg (262.61 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-AP-Daystar-2an.jpg
Sol del 1 de diciembre del 2018-AP-Daystar-2an.jpg (249.57 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-AP-Daystar-2neg.jpg
Sol del 1 de diciembre del 2018-AP-Daystar-2neg.jpg (269.35 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-Coronado 40-2an.jpg
Sol del 1 de diciembre del 2018-Coronado 40-2an.jpg (747.65 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-Coronado 40-2neg.jpg
Sol del 1 de diciembre del 2018-Coronado 40-2neg.jpg (739.51 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-Coronado 40-3an.jpg
Sol del 1 de diciembre del 2018-Coronado 40-3an.jpg (752.36 KiB) Viewed 783 times
Sol del 1 de diciembre del 2018-Coronado 40-3neg.jpg
Sol del 1 de diciembre del 2018-Coronado 40-3neg.jpg (785.72 KiB) Viewed 783 times
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MAURITS
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Re: Sol from the 1st of December 2018.

Post by MAURITS » Mon Dec 03, 2018 3:59 pm

Hi Eric, very nice and detailed pictures ...
Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be
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eroel
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Re: Sol from the 1st of December 2018.

Post by eroel » Mon Dec 03, 2018 7:08 pm

Maurits:
Thank you, BTW, "Vista del Cielo" is a very nice observatory as are your photos.
Best regards,
Eric.
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Re: Sol from the 1st of December 2018.

Post by ffellah » Mon Dec 03, 2018 8:09 pm

A good session, Eric ! I love those prom details.

Franco
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Re: Sol from the 1st of December 2018.

Post by MapleRidge » Mon Dec 03, 2018 10:18 pm

A very nice set of images form this session Eric...well done :bow

Nice to see the sun...yet another dry rain/snow infested day here...tomorrow is to be clear, time will tell ;)

Brian
Brian Colville

Maple Ridge Observatory

Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums
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Re: Sol from the 1st of December 2018.

Post by Montana » Tue Dec 04, 2018 9:55 am

These are great Eric! what camera did you use with the 40mm? (pixel size)
:bow
I hope you had a great time with all the ladies too :)

Alexandra
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Re: Sol from the 1st of December 2018.

Post by eroel » Tue Dec 04, 2018 3:36 pm

Alexandra, Franco and Brian:
Thank for the nice comments.
Alexandra, the SKYnyx 2-2 camera has a Sony ICX274 2 megapixel chip, it is 1616 X 1232 pixels with 4.4 micron pixel size, it gives up to 12fps at full resolution and is an 8 & 12 bit camera.
Use Lucam Recorder to control it.
Best regards,
Eric.
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Re: Sol from the 1st of December 2018.

Post by marktownley » Wed Dec 05, 2018 11:29 pm

Excellent images Eric! That is a fine pairing of etalons.
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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: Sol from the 1st of December 2018.

Post by Carbon60 » Thu Dec 06, 2018 6:46 am

Nice images, Eric. Lovely proms.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/
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