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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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Today's SUN (20190908) | PST Ca-K & QUARK

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pedro
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Today's SUN (20190908) | PST Ca-K & QUARK

Post by pedro » Sun Sep 08, 2019 12:56 pm

Today's SUN (20190908) | PST Ca-K & QUARK

WEB LINK:
http://re.apaaweb.com/sun_h_alpha_2019-09.html


Solar imaging session (20190908) | Pedro RE'
TEC140 F/7, QUARK Chromosphere (0.5X reducer)
GS3-U3-28S4M-C, Takahashi EM-400
http://re.apaaweb.com


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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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SUN (20190908) H-alpha DISK & PROMS (10:00 UTC). TEC140 F/7 QUARK Chromosphere, 0.5X reducer, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20190908) H-alpha DISK & PROMS (10:00 UTC). TEC140 F/7 QUARK Chromosphere, 0.5X reducer, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20190908) CaK PROMS (10:00 UTC). PST Ca-K, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20190908) H-alpha DISK & PROMS (10:00 UTC). LUNT60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20190908) H-alpha DISK & PROMS (10:00 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by marktownley » Sun Sep 08, 2019 2:33 pm

Nice shots Pedro, todays proms looked great!
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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: Today's SUN (20190908) | PST Ca-K & QUARK

Post by DeepSolar64 » Sun Sep 08, 2019 6:14 pm

Awesome!!

Great photography. You give me a chance to see in better detail close up to what I can see in my SolarMax 60DS.

James
Orion 70mm Solar Telescope
Meade Coronado SolarMax II 60 DS

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by MAURITS » Sun Sep 08, 2019 6:25 pm

Beautiful images Pedro.
Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by Starry Jack » Sun Sep 08, 2019 6:39 pm

Always performance I aspire to.

What is your preferred quark dual setting? I know it varies by Quark...
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by pedro » Sun Sep 08, 2019 7:52 pm

Thanks guys

The TEC140 / Quark combo performs very well. Usually I use a 0.5X TeleVue reducer if the seeing is not good. I never touch the QUARK dial, I leave it in the central position

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by Starry Jack » Sun Sep 08, 2019 10:21 pm

Thank you Pedro. I’ve not figured out the magic of both proms and surface but I’ll get there.
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by ffellah » Mon Sep 09, 2019 12:01 am

Great stuff, Pedro

Franco

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by eroel » Mon Sep 09, 2019 1:28 am

Pedro:
Thanks for sharing your work.
Abrazo,
Eric.

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by pedro » Mon Sep 09, 2019 8:22 am

Thanks guys

Jack: If you want to have both (surface details and proms) you have to increase the gamma setting

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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by yltansg » Mon Sep 09, 2019 11:03 pm

Hi Pedro,

Impressed by the images from your PST CAK. Looking out to get one :)

Alfred


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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by MalVeauX » Wed Sep 11, 2019 5:16 pm

Lovely limb Pedro and always happy to see Cak!

Very best,


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Re: Today's SUN (20190908) | PST Ca-K & QUARK

Post by Montana » Tue Sep 17, 2019 9:05 am

Superb prominences Pedro, these are super pictures :bow

Alexandra


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