April 2021 Highlights
- Carbon60
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April 2021 Highlights
April has been so very dry and mostly sunny for much of the UK giving plenty of opportunities for solar imaging (especially when semi-retired) . I've collated some of the highlights from the month from my perspective using images captured mainly in Ha and Ca II K.
Actually, this one is from the last day of March (as a lead in to April )which shows a beautiful prom in the north-west:
20210330_Ha_Prom_Stuart Green by Stuart Green, on Flickr
We had another fine set of proms on April 10th and the appearance of AR12814:
20210410_Ha_FD_Proms_Stuart Green by Stuart Green, on Flickr
Here's the same active region on a full disk in Ca II K imaged on April 11th:
20210411_CaK_FD_Stuart Green by Stuart Green, on Flickr
...and here on the 13th in Ha together with an image of a super long prominence (inset).
20210413_Ha_FD_Proms_Stuart Green by Stuart Green, on Flickr
The conditions were sufficient to enable me to capture a closer view of AR12814 using my 150 mm/DS Lunt 35 mod on a Basler acA1920-155 um with 2.5x PowerMate:
20210413_Ha_AR12814_Stuart Green by Stuart Green, on Flickr
A few days later on the 19th a new arrival, AR12816 was putting on a good show, which I managed to capture in 3-lights:
20210419_Sun in Ha_AR12816_Three Lights_Stuart Green by Stuart Green, on Flickr
This region of magnetic activity soon started to produce a string of small flares, one of which I managed to capture on my 150.
20210422_AR12816_Flare_Stuart Green by Stuart Green, on Flickr
In the meantime we had another fine set of prominences:
20210419_Sun in Ha_Prominence Study_Stuart Green by Stuart Green, on Flickr
...and on April 25th a fairly active Sun with multiple active regions, filaments and prominences giving us a tantalising glimpse of what we can expect as cycle 25 develops further:
20210425_Sun in Ha_Stuart Green by Stuart Green, on Flickr
Finally a view in Ca II K from this morning as the remaining active regions begin to approach the western limb.
20210429_CaK_FD and Active Regions_Stuart Green by Stuart Green, on Flickr
Let's hope for more sunny days for everyone.
Thanks for looking.
Stu.
Actually, this one is from the last day of March (as a lead in to April )which shows a beautiful prom in the north-west:
20210330_Ha_Prom_Stuart Green by Stuart Green, on Flickr
We had another fine set of proms on April 10th and the appearance of AR12814:
20210410_Ha_FD_Proms_Stuart Green by Stuart Green, on Flickr
Here's the same active region on a full disk in Ca II K imaged on April 11th:
20210411_CaK_FD_Stuart Green by Stuart Green, on Flickr
...and here on the 13th in Ha together with an image of a super long prominence (inset).
20210413_Ha_FD_Proms_Stuart Green by Stuart Green, on Flickr
The conditions were sufficient to enable me to capture a closer view of AR12814 using my 150 mm/DS Lunt 35 mod on a Basler acA1920-155 um with 2.5x PowerMate:
20210413_Ha_AR12814_Stuart Green by Stuart Green, on Flickr
A few days later on the 19th a new arrival, AR12816 was putting on a good show, which I managed to capture in 3-lights:
20210419_Sun in Ha_AR12816_Three Lights_Stuart Green by Stuart Green, on Flickr
This region of magnetic activity soon started to produce a string of small flares, one of which I managed to capture on my 150.
20210422_AR12816_Flare_Stuart Green by Stuart Green, on Flickr
In the meantime we had another fine set of prominences:
20210419_Sun in Ha_Prominence Study_Stuart Green by Stuart Green, on Flickr
...and on April 25th a fairly active Sun with multiple active regions, filaments and prominences giving us a tantalising glimpse of what we can expect as cycle 25 develops further:
20210425_Sun in Ha_Stuart Green by Stuart Green, on Flickr
Finally a view in Ca II K from this morning as the remaining active regions begin to approach the western limb.
20210429_CaK_FD and Active Regions_Stuart Green by Stuart Green, on Flickr
Let's hope for more sunny days for everyone.
Thanks for looking.
Stu.
Last edited by Carbon60 on Thu Apr 29, 2021 2:03 pm, edited 1 time in total.
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: April 2021 Highlights
Wow, lot's of great work. Is the 150mm refractor you mention a mod of a Lunt? Do you have a reference post for that scope? What's a Lunt 60 triple stack? Were the high-resolution CaK and white light also done at 150mm aperture?
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Re: April 2021 Highlights
Wow!! what a superb set of presentations I wish I had the time to even process my images
Alexandra
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Re: April 2021 Highlights
That's a great effort of documentation of the month of April. Very well done!!
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Orion 70mm Solar Telescope
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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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Re: April 2021 Highlights
Great presentation Stu, you can tell you've got more time on your hands (i'm only jealous!)
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Re: April 2021 Highlights
Nice collection and presentation. Well done !
Christian Viladrich
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Re: April 2021 Highlights
Summing up is great. This is a scientific approach and an excellent basis for a presentation at the end of the year.
- Carbon60
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Re: April 2021 Highlights
Many thanks, everyone. Much appreciated. It’s a pity the weather has turned for the worse. Still, the garden needs the rain, so it’s not all bad.
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: April 2021 Highlights
Superb presentation Stu, it's nice to be reminded of what a good month we had for Solar Imaging.
Martin
Martin
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Re: April 2021 Highlights
Absolutely excellent! You really got the highlights of the month, directions and all in place.
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Sketches and images: https://www.cloudynights.com/gallery/me ... 07-viewer/
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Re: April 2021 Highlights
This is an awesome summary of the months activity Stu...excellent work
Brian
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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: April 2021 Highlights
Lovely to see April's summary. A lot of work but worth it Stu. I should really do this, but getting time to even process my data is something else. I've days of backlog, lol. Well done and thanks for sharing.
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Eq8 r Pro Mount.
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.
- Carbon60
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Re: April 2021 Highlights
Many thanks, everyone.
I tend to create these montages regularly, shortly after creating the original images, and then upload them to the British Astronomical Association website. It only takes a few minutes using MS Paint and a bit of cutting and pasting.
Stu.
I tend to create these montages regularly, shortly after creating the original images, and then upload them to the British Astronomical Association website. It only takes a few minutes using MS Paint and a bit of cutting and pasting.
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: April 2021 Highlights
A very good summary for April came out, a lot of work has been done, but it's worth it.
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