Hi all,
An active area AR12717 on the sun, August 1, 2018. This is a dipole - an emergency flux area.
Telescope C8 203mm F/10 SCT equipped with the ARIES 214mm two bands dielectric energy rejection filter (DERF), PST etalon camera Basler 1920-155.
Pictures are in the core of the H-a line and in the red and blue wings of the H-a line. Note that in the red wing of Ha a photospheric granulation is perfectly visible, while in the blue wing it is not visible.
Seeing was average.
Thanks for looking.
Valery
New AR12717 August 01 2018 C8 telescope with 214mm DERF
- Valery
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New AR12717 August 01 2018 C8 telescope with 214mm DERF
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- AR12717-Aug-01-2018-UT-05h-24m-H-a-core.jpg (293.15 KiB) Viewed 1659 times
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- AR12717-Aug-01-2018-UT-05h-30m-H-a-BlueWing.jpg (291.24 KiB) Viewed 1659 times
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- AR12717-Aug-01-2018-UT-05h-27m-H-a-RedWing.jpg (289.84 KiB) Viewed 1659 times
"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: New AR12717 August 01 2018 C8 telescope with 214mm DERF
These are excellent images, i like on the last one how you can see the granulation starting to poke through.
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Re: New AR12717 August 01 2018 C8 telescope with 214mm DERF
These are tremendous Valery, I really enjoyed these
Alexandra
Alexandra
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Re: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Thanks, Alexandra and Mark
I enjoy the difference in loop prominence appearance between blue and red wing as well as different appearance of the photospheric (RW) and lowest chromospheric (BW) "surfaces".
I enjoy the difference in loop prominence appearance between blue and red wing as well as different appearance of the photospheric (RW) and lowest chromospheric (BW) "surfaces".
"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: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Very impressive Valery...especially the granulation lurking in the background of the red wing image
Brian
Brian
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Maple Ridge Observatory
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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
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: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Thanks, BrianMapleRidge wrote: ↑Sat Aug 04, 2018 12:22 am Very impressive Valery...especially the granulation lurking in the background of the red wing image
Brian
When I imaging in H-a I really hate all these lurking photospheric cells network.
"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: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Very nice set of images Valery !
Christian Viladrich
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Re: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Excellent images, Valery. Interesting to see in detail the Ha wings.
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/
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Re: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Beautiful images, Valery.
The off-band views are very interesting. The enhanced (loop?) absorption in the blue wing seems to be consistent with the picture of prominence gas condensing out of the corona and streaming down to the surface. Do you have an idea of the wavelength offsets in your detuned images?
Cheers, Peter.
The off-band views are very interesting. The enhanced (loop?) absorption in the blue wing seems to be consistent with the picture of prominence gas condensing out of the corona and streaming down to the surface. Do you have an idea of the wavelength offsets in your detuned images?
Cheers, Peter.
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Re: New AR12717 August 01 2018 C8 telescope with 214mm DERF
Thanks, Christian, Stu and Peter!
Peter, I don't know how much were the detuning in these cases, but my guess is +0,5 to +0,7A red and -0,6 to -0,7A blue.
Valery
Peter, I don't know how much were the detuning in these cases, but my guess is +0,5 to +0,7A red and -0,6 to -0,7A blue.
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.