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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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Astrophil
- Im an EXPERT!
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by Astrophil » Sat May 11, 2019 1:08 am
Hi All,
A nice day for solar imaging, only a few clouds and a light breeze. The Quantum Six was the scope of choice today. First off are portraits of the active regions then a group shot. Finally, not to the waste time while the etalon heated up, AR12741 without it's chromosphere cover.
Phil
- 20190510_101113_ac.jpg (386.14 KiB) Viewed 653 times
- 20190510_101407_ac.jpg (382.56 KiB) Viewed 653 times
- may 10 mosaic small.jpg (432.56 KiB) Viewed 653 times
- 20190510_090732_acc2.jpg (434.82 KiB) Viewed 653 times
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David_The_Bears_Fan
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- Location: Banbury, UK
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by David_The_Bears_Fan » Sat May 11, 2019 7:15 am
Great shots.
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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Davidm
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by Davidm » Sat May 11, 2019 8:55 am
Great detail and processing Phil!
Lunt LS152T (DSII and CaK module), Coronado Helios 1, Grasshopper 3 2/3" CCD
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MalVeauX
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by MalVeauX » Sat May 11, 2019 11:24 am
Fantastic capture Phil!
Very best,
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ffellah
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by ffellah » Sat May 11, 2019 11:54 am
These are INCREDIBLE, Phil ! Perfect conditions, capture and processing...and great gear
Franco
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Astrophil
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by Astrophil » Sat May 11, 2019 12:50 pm
Thanks for the nice comments.
Oops, I mislabeled the images. They were taken with a Quantum Six telescope not an Questar. There is no Questar 6.
Phil
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Montana
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by Montana » Sat May 11, 2019 5:53 pm
Absolutely superb in every way, very sharp and crisp and yet beautifully smooth
Alexandra
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Astrophil
- Im an EXPERT!
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by Astrophil » Sat May 11, 2019 8:40 pm
Thank you Alexandra, I have been trying to follow your suggestions. Now if I could narrow the bandwidth of the filter they would be better.
Phil
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Christopher
- Ohhhhhh My!
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by Christopher » Sat May 11, 2019 8:44 pm
I love that scope Phil! Beautiful work.
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
Zeiss APQ 130, MiniBorg 45ED, Lunt 100THa
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MAURITS
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by MAURITS » Sat May 11, 2019 8:46 pm
A very good and detailed session Phil.
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p_zetner
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by p_zetner » Sun May 12, 2019 2:57 pm
An exceptional set of images!
Cheers.
Peter
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MapleRidge
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by MapleRidge » Sun May 12, 2019 3:35 pm
Lovely images Phil...well done
Brian
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marktownley
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by marktownley » Sun May 12, 2019 5:48 pm
Top shots! Lots of detail there.
