Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

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MalVeauX
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Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by MalVeauX » Sun Mar 25, 2018 4:50 pm

Hey all,

Quite the blank disc lately! But, I woke up to a lovely grouping of prominences on the limb. Weather is terrible, some clouds, and windy. Seeing was pretty bad actually too. Could barely get good surface spicules detail. But the proms came through, and that's what I really wanted. Even though its a solar minimum, there are still lovely things to see in the different wavelengths and hydrogen alpha always provides something to image or see, be it the surface itself and some features, or my favorite which are the mighty prominences.

Imaged with a 120mm F8.3 achromatic refractor and a Quark Chromophere for the Hydrogen Alpha views, and threw in a 0.5x focal reducer (on the camera nose) to change scale & FOV a little during some poor seeing. I tune mine to nearly all the way to the blue side (9 o'clock if I recall). For the white light, I used the same scope, with Baader Solar Film, Baader Solar Continum (540nm) and an Explore Scientific 3x Focal Reducer. ASI174MM is the camera I use for all this.

From my observatory I recently finished:

Setup:

Mount: Orion Sirius (HEQ5)
Imaging OTA: Celestron Omni XLT 120 + Linear Bearing GSO Focuser + 80mm Extension Tubes x 2 (I don't use a diagonal)
HA Filter: Quark Chromosphere
White Light: Baader Solar Film & Baader Solar Continuum (540nm) Filter
ERF: Baader UV/IR Cutter (in the focuser on the nose of my extension tubes)
Focal Extender: Explore Scientific 3x Focal Extender (only for White Light high resolution surface)
Focal Reducer: GSO 0.5x (to control scale & FOV when seeing is poor)
Software: SharpCap (capture), imPPG (decon & histogram stretching), Photoshop (all other edits); Colored in post
I captured 300 frames per sequence.
I stacked 31 images for virtually everything here except the prominences I stacked 41 (to reduce noise and increase S/N ratio for processing latitude).
Seeing was a solid 2 at best moments, 1 most of the time, with lots of low clouds passing through; I had to image through sucker holes.

ImageDSCF8252 copy by Martin Wise, on Flickr

Images:

Solar Disc in White Light; Void of SunSpots and no obvious Faculae

ImageSolarDisc_WL_03252018 by Martin Wise, on Flickr

Solar Surface in White Light; High Resolution, revealing some Convection Cells and minor Faculae fingers; B&W & Colored

ImageSolarSurface_WL_HR_BW_03252018 by Martin Wise, on Flickr

ImageSolarSurface_WL_HR_Color_03252018 by Martin Wise, on Flickr

Solar Surface & Prominences in Hydrogen Alpha; Focal Reducer used for scale/FOV during bad seeing; B&W & Colored

ImageSolarSurfaceProms_HA_Reducer_BW_03252018 by Martin Wise, on Flickr

ImageSolarSurfaceProms_HA_Reducer_Color_03252018 by Martin Wise, on Flickr

Solar Surface & Prominences in Hydrogen Alpha; High Resolution (poor seeing still); B&W & Colored

ImageSolarSurfaceProms_HA_BW_03252018 by Martin Wise, on Flickr

ImageSolarSurfaceProms_HA_Color_03252018 by Martin Wise, on Flickr

Astrobin data:

Image
Image
Image
Image
Image
Image

Very best,

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Carbon60
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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by Carbon60 » Sun Mar 25, 2018 5:33 pm

A very nice set of images, Martin.

Stu.
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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by marktownley » Sun Mar 25, 2018 8:21 pm

You had a good run of images there Marty. Sounds like your seeing was the same as mine.
Image
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: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by robert » Mon Mar 26, 2018 7:48 am

Great prominence shots
Robert
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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by Derek Klepp » Mon Mar 26, 2018 9:23 am

Nice set Marty.

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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by ffellah » Mon Mar 26, 2018 12:24 pm

A very nice set of images, Martin.

Franco

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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by Bruce Girrell » Mon Mar 26, 2018 12:43 pm

Nice work on the proms. I was trying to capture those guys yesterday too, but couldn't get anywhere near the detail that you have
Looking good

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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by eroel » Mon Mar 26, 2018 1:55 pm

Martin:
Beautiful session, sharp and clean images.
Regards,
Eric.

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Re: Solar Surface & Proms | HA, WL | Quark, Continuum | 120mm

Post by Montana » Mon Mar 26, 2018 6:34 pm

Beautiful set of images and great presentation :bow :hamster: you are very lucky to have an observatory :)
Alexandra

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