Hydrogen alpha & Helium D3 10th Apr 23

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Alun_H
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Hydrogen alpha & Helium D3 10th Apr 23

Post by Alun_H »

Clouds broke mid afternoon allowing me to run off a few scans with the 72ED/Hoya ND 16 and Sol'Ex in the Halpha and Helium D3 wavelengths. 16x sidereal speed used on CEM60 to force the scans. Halpha image is a stack of four out of eight,stacked in Autostakkert and minimal processing in Photoshop CS2.
The Helium D3 though is a single image created in INTI using the free line tool,using slight noise reduction in PS CS2,both images have been flipped and rotated to the correct orientation.

Alun
ha_lapl6_ap19_proc.jpg
ha_lapl6_ap19_proc.jpg (145.77 KiB) Viewed 1218 times
_13_39_05Z_free.jpg
_13_39_05Z_free.jpg (336.09 KiB) Viewed 1218 times


Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
Sol'Ex SHG
80mm f/7 achromat used with pressure tune module off the Lunt with Lunt 100mm ERF
Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
Coronado SM40 (pre Meade) and BF10 filter set + SMII 60 richview DS etalon
Skywatcher EQ6 Pro and Ioptron CEM60
Then there is all the night kit which is far too long a list to write up here! :lol:
More images on view on my Flickr page...https://www.flickr.com/photos/alun_h/
thesmiths
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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by thesmiths »

Your H-alpha is really sharp! A little bit of stacking really helps.

I haven't done too much Helium imaging, but I did find it interesting to compare H and He prominence close ups.


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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by Montana »

Stunning images, well done :bow :hamster:

Alexandra


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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by Alun_H »

Thank you Douglas,Alexandra.

Alun


Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
Sol'Ex SHG
80mm f/7 achromat used with pressure tune module off the Lunt with Lunt 100mm ERF
Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
Coronado SM40 (pre Meade) and BF10 filter set + SMII 60 richview DS etalon
Skywatcher EQ6 Pro and Ioptron CEM60
Then there is all the night kit which is far too long a list to write up here! :lol:
More images on view on my Flickr page...https://www.flickr.com/photos/alun_h/
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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by rsfoto »

Hi Alun,

Great results. Rain here at my place which is good.


regards Rainer

Observatorio Real de 14
San Luis Potosi Mexico

North 22° West 101°
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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by christian viladrich »

Beautifull Ha image, and D3 image too, considering the difficulty to get one !


Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
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Re: Hydrogen alpha & Helium D3 10th Apr 23

Post by Alun_H »

Thank you Rainer,Christian.

Alun


Lunt 50THa solar scope
Lunt CaK B12 module
SW Evostar 72ED for full disk imaging
Sol'Ex SHG
80mm f/7 achromat used with pressure tune module off the Lunt with Lunt 100mm ERF
Bresser 90 f/10 achromat used for CaK & white light imaging & PST mod with Lunt 100mm ERF
Coronado SM40 (pre Meade) and BF10 filter set + SMII 60 richview DS etalon
Skywatcher EQ6 Pro and Ioptron CEM60
Then there is all the night kit which is far too long a list to write up here! :lol:
More images on view on my Flickr page...https://www.flickr.com/photos/alun_h/
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