AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
- MalVeauX
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AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Hi all,
I had a small window this morning (0800am Eastern Time) here in Florida before clouds & rain rolled in. It's now thunder storming of course. But in that brief period I had a chance to get some decent data on AR2767. The spot has evolved a bit and the plage has decayed to something smaller with less major filaments coming from the area. Being close to the center of the face of the disc in its transit, some features are more obvious now (like cells, and the structures in the penumbra and sometimes the inner structure of the umbra itself). The plage is less dramatic and mottling less dramatic straight on compared to at an angle where more contrast is on the spicules. But straight on like this, the convection cells and k-grains are a bit more obvious with better contrast I think compared to at an angle. I noticed the beginnings of what might be a light bridge were different in the various wavelengths, in HA it appeared to have a nearly complete light bridge in two sections of the umbra, but I didn't see that same structure in Gband, but the structure's root to the umbra was visible, however in CaK it was a little less visible. Kind off as I have not noticed that before (with a completed light bridge I typically note it in all wavelengths). So perhaps it was not a light bridge. I'm not sure, so I'm interested in everyone's thoughts on this phenomena!
B&W:
Colored:
Seeing Conditions (not great, but supported the image scales of 0.2" to 0.4" per pixel with sub-arc-second-seeing):
Equipment:
150mm F8 Refractor
+ 2" Baader Red CCD-IR Block Filter (Sub-aperture internal D-ERF) + Baader GPC 1.25x (F10) + PST 1A HA Etalon + 10mm BF + ASI290MM
+ 2" Baader Blue CCD-IR Block Filter (Sub-aperture internal D-ERF) + 2.5x Telenegative Amplifier (F20) + EdmundOptics 430nm Filter + Baader 3.0 ND + ASI290MM
+ (aperture masked to 120mm F10) + 2" Baader Blue CCD-IR Block Filter (Sub-aperture internal D-ERF) + 2.5x Telenegative Amplifier (F25) + Lunt CaK B1200 + ASI290MM
Very best,
I had a small window this morning (0800am Eastern Time) here in Florida before clouds & rain rolled in. It's now thunder storming of course. But in that brief period I had a chance to get some decent data on AR2767. The spot has evolved a bit and the plage has decayed to something smaller with less major filaments coming from the area. Being close to the center of the face of the disc in its transit, some features are more obvious now (like cells, and the structures in the penumbra and sometimes the inner structure of the umbra itself). The plage is less dramatic and mottling less dramatic straight on compared to at an angle where more contrast is on the spicules. But straight on like this, the convection cells and k-grains are a bit more obvious with better contrast I think compared to at an angle. I noticed the beginnings of what might be a light bridge were different in the various wavelengths, in HA it appeared to have a nearly complete light bridge in two sections of the umbra, but I didn't see that same structure in Gband, but the structure's root to the umbra was visible, however in CaK it was a little less visible. Kind off as I have not noticed that before (with a completed light bridge I typically note it in all wavelengths). So perhaps it was not a light bridge. I'm not sure, so I'm interested in everyone's thoughts on this phenomena!
B&W:
Colored:
Seeing Conditions (not great, but supported the image scales of 0.2" to 0.4" per pixel with sub-arc-second-seeing):
Equipment:
150mm F8 Refractor
+ 2" Baader Red CCD-IR Block Filter (Sub-aperture internal D-ERF) + Baader GPC 1.25x (F10) + PST 1A HA Etalon + 10mm BF + ASI290MM
+ 2" Baader Blue CCD-IR Block Filter (Sub-aperture internal D-ERF) + 2.5x Telenegative Amplifier (F20) + EdmundOptics 430nm Filter + Baader 3.0 ND + ASI290MM
+ (aperture masked to 120mm F10) + 2" Baader Blue CCD-IR Block Filter (Sub-aperture internal D-ERF) + 2.5x Telenegative Amplifier (F25) + Lunt CaK B1200 + ASI290MM
Very best,
- dhkaiser
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Awesome images Marty. I leave comments on the light bridge to the more knowledgeable.
Dan
South central Indiana
USA
South central Indiana
USA
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Hi Marty,
Very good and here it is raining due to " Hanna "
Very good and here it is raining due to " Hanna "
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: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Excellent images, Marty.
Awesome H-alpha and the WL and CaK shots are very crisp and detailed.
Cheers.
Peter
Awesome H-alpha and the WL and CaK shots are very crisp and detailed.
Cheers.
Peter
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
WoW Marty! The Ha ones are good but the Gband and CaK ones are absolutely stunning. Incredible job my friend!
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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
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- eroel
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Marty, agree with James, the G band and the CaK are super.
Best regards,
Eric.
Best regards,
Eric.
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
A very good set of images Marty, glad you got something before the weather came in.
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: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Hi Marty, excellent images - thanks vm
Terry
Terry
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Thanks all,
Here's an animation (forgive me its a little large, 3.5MB, may take a minute to load) of the three wavelengths aligned to see how the structures change through the layers of the chromosphere and photosphere.
(If anyone knows a way to make these files more efficient for gif animation, that would be a great help, I can't seem to ever get them to be 500kb or anything like that, always several MB despite the files being only a few Kb each)
Very best,
Here's an animation (forgive me its a little large, 3.5MB, may take a minute to load) of the three wavelengths aligned to see how the structures change through the layers of the chromosphere and photosphere.
(If anyone knows a way to make these files more efficient for gif animation, that would be a great help, I can't seem to ever get them to be 500kb or anything like that, always several MB despite the files being only a few Kb each)
Very best,
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Hi Marty,
The 3-band animation is very interesting !
The 3-band animation is very interesting !
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
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Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Excellent collection of images in different wavelengths and the animation is just super cool!
Best regards,
Arne
Best regards,
Arne
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Fabulous images Marty and that animation just tops it off
Alexandra
Alexandra
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Re: AR2767 in High Res II | HA, CaK, Gband Trifecta | July 27th 2020
Thanks all,
Looks like something truly energetic is coming around the bend as of right now, it has a leading pore but the main spot is still masked behind the limb. It's magnetic region is significantly larger than AR2767's so this could potentially be a "great spot." Hope so! If it's truly "great" it may last the 10~12 day transit and make a 2nd appearance like the last great spot did? Would be nice!
Very best,
Looks like something truly energetic is coming around the bend as of right now, it has a leading pore but the main spot is still masked behind the limb. It's magnetic region is significantly larger than AR2767's so this could potentially be a "great spot." Hope so! If it's truly "great" it may last the 10~12 day transit and make a 2nd appearance like the last great spot did? Would be nice!
Very best,
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