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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 15th of February 2019 and its reflection.

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eroel
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Sol from the 15th of February 2019 and its reflection.

Post by eroel » Sat Feb 16, 2019 4:09 am

Hi:
Beautiful sunny day, so before lunch took a couple of CaK and Ha FD´s, and at night the solar reflection on the Moon.
The CaK shot was taken with the Meade 102mm f/9 with a CaK mod, the Ha with the Solarmax 90-DS, and the reflection is a 2 part mosaic with a 102mm f/7 Stellarvue fitted with a full aperture Daystar ERF. The camera was the SKYnyx 2-2.
Thanks for looking and wish you all a sunny and Happy weekend.
Eric.
Sol del 15 de febrero del 2019-Meade-CaK-PSTmod-3an.jpg
Sol del 15 de febrero del 2019-Meade-CaK-PSTmod-3an.jpg (829.64 KiB) Viewed 567 times
Sol del 15 de febrero del 2019-Meade-CaK-PSTmod-3neg.jpg
Sol del 15 de febrero del 2019-Meade-CaK-PSTmod-3neg.jpg (834.12 KiB) Viewed 567 times
Sol del 15 de febrero del 2019-Solarmax 90-DS-BF30-2an.jpg
Sol del 15 de febrero del 2019-Solarmax 90-DS-BF30-2an.jpg (1006.25 KiB) Viewed 567 times
Sol del 15 de febrero del 2019-Solarmax 90-DS-BF30-2neg.jpg
Sol del 15 de febrero del 2019-Solarmax 90-DS-BF30-2neg.jpg (1.02 MiB) Viewed 567 times
Mosaico de la Luna del 15 de febrero del 2019-Stellarvue 102mm f-7-2an.jpg
Mosaico de la Luna del 15 de febrero del 2019-Stellarvue 102mm f-7-2an.jpg (1.16 MiB) Viewed 563 times

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Re: Sol from the 15th of February 2019 and its reflection.

Post by xn44 » Sat Feb 16, 2019 6:42 am

Beautiful images Eric! Your R.102 is 100% effective.
Abrazos,
Pepe

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Re: Sol from the 15th of February 2019 and its reflection.

Post by marktownley » Sat Feb 16, 2019 8:21 am

Top shots Eric!
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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 15th of February 2019 and its reflection.

Post by David_The_Bears_Fan » Sat Feb 16, 2019 9:58 am

Wow what a great set. Love the Moon shot too!
David

Kit: Skywatcher Evostar 120 on Celestron CG-4 / Coronado PST / Lunt B1200 Ca-K Module / Lacerta Herschel Wedge/ Canon 1100D & 77D / ZWO ASI178MM & 120MC-S / QHY5-II Mono

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Re: Sol from the 15th of February 2019 and its reflection.

Post by ffellah » Sat Feb 16, 2019 12:04 pm

Excellent results, Eric.

Franco

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Re: Sol from the 15th of February 2019 and its reflection.

Post by MapleRidge » Sat Feb 16, 2019 1:28 pm

An excellent set of solar Ha and CaK images Eric, and the lunar mosaic is very sharp. Great work on all :bow

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Re: Sol from the 15th of February 2019 and its reflection.

Post by eroel » Sat Feb 16, 2019 3:17 pm

Thank you for the nice comments, much appreciated.
Probably the Moon mosaic looks for most of you too contrasty, but let me tell you why did I recorded and processed it that way. When I was 12 years old and started looking the stars, the Moon photographs taken with the big refractors like the Lick, the Paris and the ones at the world biggest observatories, were taken with very slow high contrast emulsions that made the Moon look dramatic, so the "aficionado" astrophotography community started to use High Contrast Copy films to get our Moon photographs like the profesional did at that time 1950´s. (My, it sounds like a prehistoric issue)
Have a nice weekend,
Eric.

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Re: Sol from the 15th of February 2019 and its reflection.

Post by Astrophil » Sat Feb 16, 2019 5:39 pm

Eric, great images once again. I've been studying the Moon image and love the contrast. I guess I'm a similar vintage ( tri x and copy film with hi contrast paper). Contrast is nice in high sun conditions and really accentuates the ray structures. Lots of detail in the usual suspects as well.

Phil

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Re: Sol from the 15th of February 2019 and its reflection.

Post by eroel » Sat Feb 16, 2019 8:13 pm

Phil:
As for the shots thanks, but as the vintage I don´t know, I will be 81 in April.
I used to develop with Microdol, Microphen and some other high end developers as you did.
Used Kodak spectroscopic emulsions as also european ones.
Nice to remember those days. ;)
Best regards,
Eric.

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Re: Sol from the 15th of February 2019 and its reflection.

Post by krakatoa1883 » Sat Feb 16, 2019 8:51 pm

Great images, Eric, and beautiful Moon, very well processed!
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Re: Sol from the 15th of February 2019 and its reflection.

Post by Montana » Sun Feb 17, 2019 1:55 pm

What amazing images and the Moon shot is out of this world, it is so crisp and full of detail :bow and Wow! Eric 81 fantastic :hamster:
Alexandra

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