August 4: H alpha series
- p_zetner
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August 4: H alpha series
Hi Everyone.
A few days of beautiful weather with relatively good seeing. I was able to do an extensive spectroheliograph run on the 3rd and here are the results of some H-alpha imaging on the 4th. The equipment: Aries ERF, Celestron C8 Edge, Moonlite CHL focuser, Daystar QPE 0.6A, Point Grey USB3 Grasshopper IMX174. Homemade optics give ~ f/46 telecentric at the Daystar filter and optional focal reduction to ~ f/30 when required.
Hope you enjoy!
Peter.
AR12770 at f/46 (two different exposures / treatments and an inverted image.)
The images should be left-right flipped for correct orientation.
AR12769 at f/46 (two different exposures / treatments and an inverted image.)
The images should be left-right flipped for correct orientation.
NE Limb prominence at f/30.
AR12769 and AR12768 panorama (6 panes), imaged at f/30. A large file! (correct orientation)
AR12770 at f/30 imaged on and off band.
A few days of beautiful weather with relatively good seeing. I was able to do an extensive spectroheliograph run on the 3rd and here are the results of some H-alpha imaging on the 4th. The equipment: Aries ERF, Celestron C8 Edge, Moonlite CHL focuser, Daystar QPE 0.6A, Point Grey USB3 Grasshopper IMX174. Homemade optics give ~ f/46 telecentric at the Daystar filter and optional focal reduction to ~ f/30 when required.
Hope you enjoy!
Peter.
AR12770 at f/46 (two different exposures / treatments and an inverted image.)
The images should be left-right flipped for correct orientation.
AR12769 at f/46 (two different exposures / treatments and an inverted image.)
The images should be left-right flipped for correct orientation.
NE Limb prominence at f/30.
AR12769 and AR12768 panorama (6 panes), imaged at f/30. A large file! (correct orientation)
AR12770 at f/30 imaged on and off band.
Re: August 4: H alpha series
Beautiful images, Peter. Very enjoyable and nice to see what's going on. Thanks.
Phil
Phil
- Valery
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Re: August 4: H alpha series
Excellent high resolution images, Peter!
Nice to see the sun with higher activity.
Any chance you will image the sun at Ca II I 8542,1A with your spectroheliograph?
Valery
Nice to see the sun with higher activity.
Any chance you will image the sun at Ca II I 8542,1A with your spectroheliograph?
Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: August 4: H alpha series
Gorgeous! 3D
Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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Re: August 4: H alpha series
Hi Peter,
Excellent close up images of those spots. Well done.
Excellent close up images of those spots. 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: August 4: H alpha series
Very good indeed Peter!
http://brierleyhillsolar.blogspot.co.uk/
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Re: August 4: H alpha series
Great images, Peter, H-alpha is really 3D... Any detail about your telecentric ?
Raf
My solar images and reports with articles on solar equipment
My solar images and reports with articles on solar equipment
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Re: August 4: H alpha series
Thanks for the kind comments, everyone!
Alexandra: I was pretty pleased with the "fluffiness" and the detail in the prom. Seeing makes all the difference.
Valery: I've just posted a full disk image, in the Solar Radio, Magnetometry and Spectroscopy section, taken in one of the CaII triplet lines (8498 A). I think I know what you're looking for. Some of the professionals observe a CaII triplet chromosphere which looks like a hybrid of H alpha and Ca K. This is probably only detectable at high image resolutions.
Raf: I've attached a photo and schematic of the telecentric. It's a train of four achromatic doublets: -80mmfl, -120mmfl, -120mmfl and +120mmfl. Let me know if you'd like more detail. The optics train in the photo is longer than necessary. There is an extra extension tube between the Daystar filter and the 2" eyepiece holder. I normally don't use this and should take a new photo! The focal reducer is simply a 300mmfl achromatic doublet held in the tube (to which the camera is attached) which slides into the eyepiece holder.
Cheers.
Peter
Alexandra: I was pretty pleased with the "fluffiness" and the detail in the prom. Seeing makes all the difference.
Valery: I've just posted a full disk image, in the Solar Radio, Magnetometry and Spectroscopy section, taken in one of the CaII triplet lines (8498 A). I think I know what you're looking for. Some of the professionals observe a CaII triplet chromosphere which looks like a hybrid of H alpha and Ca K. This is probably only detectable at high image resolutions.
Raf: I've attached a photo and schematic of the telecentric. It's a train of four achromatic doublets: -80mmfl, -120mmfl, -120mmfl and +120mmfl. Let me know if you'd like more detail. The optics train in the photo is longer than necessary. There is an extra extension tube between the Daystar filter and the 2" eyepiece holder. I normally don't use this and should take a new photo! The focal reducer is simply a 300mmfl achromatic doublet held in the tube (to which the camera is attached) which slides into the eyepiece holder.
Cheers.
Peter
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Re: August 4: H alpha series
Excellent images, Peter. Lots of lovely fine details resolved in those close views.
That’s an impressive setup.
Stu.
That’s an impressive setup.
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/