Hi,
this is the first light of the Lunt CaK 1800 star diagonal module I received on Friday. Before I use Baader K-line only and I'm very impressed now!
A full disk in a prime focus is of 2 images, because of 174 sensor.
Close up of the same AR made with similar scale: CaK with TZ-4 telecentric (seems works Ok in Ca also, but with a central reflection spot that I'll try to get rid later) and H-alpha with QuarkChromo. Another H-alpha is AR12772 near NW limb. 130mm.
I'm curious now how to protect in a better way Ca filter from direct sunlight in case of a larger aperture and to narrow a bandwidth
regards
Leo
August 22 FD CaK H-alpha AR12772
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August 22 FD CaK H-alpha AR12772
- Attachments
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- CaK FD
- Sun_20200822 111112_cAI2iPs c.jpg (1.1 MiB) Viewed 601 times
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- CaK SE quadrant
- Sun_20200822 112159_AIPs cr2с.jpg (658.54 KiB) Viewed 601 times
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- 70% scale SE quadrant
- Sun_20200822 132933_AIPs70.jpg (292.04 KiB) Viewed 601 times
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- AR12772
- Sun_20200822 134104_AIPsRT.jpg (921.42 KiB) Viewed 601 times
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Re: August 22 FD CaK H-alpha AR12772
Impressive set of images Leo.
The Lunt CaK unit is a great bit of kit and I'm sure you will be blown away once you use it on a disc with more features. My unit is the CaK1200 and I use it with a Tal 100mm f10 most of the time. In poor seeing I step it down to 80mm or even 60mm but on good days I use 100mm and a x2 or, on very good days, even x2.5 Powermate when it shows superb detail.
The Lunt CaK unit is a great bit of kit and I'm sure you will be blown away once you use it on a disc with more features. My unit is the CaK1200 and I use it with a Tal 100mm f10 most of the time. In poor seeing I step it down to 80mm or even 60mm but on good days I use 100mm and a x2 or, on very good days, even x2.5 Powermate when it shows superb detail.
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
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Re: August 22 FD CaK H-alpha AR12772
Very nice images with excellent detail. I love the FD CaK image and that filament shows well in that SE AR. It's all but gone today.
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Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
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" Way more fun to see it! "
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Re: August 22 FD CaK H-alpha AR12772
New toys are always exciting!
As far as using the module in larger apertures (up to 150mm); I personally just put a Baader Blue CCD filter in front of it (acting as a small ERF if you will). Works just fine.
As far as using the module in larger apertures (up to 150mm); I personally just put a Baader Blue CCD filter in front of it (acting as a small ERF if you will). Works just fine.
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Re: August 22 FD CaK H-alpha AR12772
Wonderful to see the excitement of seeing the Sun in a different light, your close ups show just what this super instrument can do
I agree with Jochen as I use the Baader blue too.
Alexandra
I agree with Jochen as I use the Baader blue too.
Alexandra
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Re: August 22 FD CaK H-alpha AR12772
Thank you so much
I was so excited about the new toy that I exaggerated a bit with the x4 and not considered sampling at all. Despite a lousy seeing.
to Mike, Jochen and Alexandra: thanks, seems I could use any blue filter from LRGB set, couldn’t I? I see also about K-line in front of or even instead of front part of Lunt CaK module in the "newton T300" thread here at SC.
Leo
I was so excited about the new toy that I exaggerated a bit with the x4 and not considered sampling at all. Despite a lousy seeing.
to Mike, Jochen and Alexandra: thanks, seems I could use any blue filter from LRGB set, couldn’t I? I see also about K-line in front of or even instead of front part of Lunt CaK module in the "newton T300" thread here at SC.
Leo
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Re: August 22 FD CaK H-alpha AR12772
Excellent images, Leo.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/