Solar Discs | CaK & 395nm | Jan 31rst 2021
- MalVeauX
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Solar Discs | CaK & 395nm | Jan 31rst 2021
Heya,
Pretty blank disc today! Just a few filaments and a single prom. So, focused on just testing a new approach to a full disc in shorter wavelengths using angular resolution. I'm using 3D printed masks (thanks Dave for the masks!!) to make a 60mm F16.67 long refractor for the very long focal-ratio to put it through the narrowband filters. In this case, a Lunt CaK 2.4A filter and an Altair 395nm 70A filter. Testing results on an IMX253 sensor (3.45um pixels, 1.1" sensor size for easy full discs). Seeing was decent, not great, very, very windy today, but it's the first clear morning I've had in a long time with all this nasty rain. Seeing was sub-arc to 2" back and forth with the wind. Graph provided.
Discs from the above in CaK (lower chromosphere) & 395nm (photosphere):
Very best,
Pretty blank disc today! Just a few filaments and a single prom. So, focused on just testing a new approach to a full disc in shorter wavelengths using angular resolution. I'm using 3D printed masks (thanks Dave for the masks!!) to make a 60mm F16.67 long refractor for the very long focal-ratio to put it through the narrowband filters. In this case, a Lunt CaK 2.4A filter and an Altair 395nm 70A filter. Testing results on an IMX253 sensor (3.45um pixels, 1.1" sensor size for easy full discs). Seeing was decent, not great, very, very windy today, but it's the first clear morning I've had in a long time with all this nasty rain. Seeing was sub-arc to 2" back and forth with the wind. Graph provided.
Discs from the above in CaK (lower chromosphere) & 395nm (photosphere):
Very best,
- dhkaiser
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Those are excellent images of a really quiet sun.
Dan
South central Indiana
USA
South central Indiana
USA
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Hi Marty,
Well done.
Well done.
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Yes Marty, some fabulous images showing what has been happening today during the sleepy-Sun.
Cak is my fav and thanks for sharing
Terry
Cak is my fav and thanks for sharing
Terry
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Very nice Marty! The 395nm images turned out well. The resolution looks good. Granulation is easily seen and a couple of pores are visible in the full sized image. Pretty darn good to be stopped down to 60mm!!
Nice CaK ones too!
Nice CaK ones too!
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Lovely disks Marty! That setup works well.
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Thanks Marty, lovely captures despite it being a quiet sun.
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80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
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Lunt 60mm Double Stack HA
80ed WL+ Lunt Hershal Wedge + Badder K-Line filter.
100mm AR + Lunt b1800 Ca-K module.
Neq6 Eq Mount.
2.7m Pulsar Dome.
11in Celestron SCT + White Light Filter.
70mm AR Stellavue.
12inch OO Newtonian.
Eq8 r Pro Mount.
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Great shots Marty...well done
Brian
Brian
Brian Colville
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Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Well done Marty, these are lovely full discs good seeing will come soon
Alexandra
Alexandra
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Re: Solar Discs | CaK & 395nm | Jan 31rst 2021
Very nice disks
Marios S.Ioannou
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