Sunday Sunshine - 4th February
- marktownley
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Sunday Sunshine - 4th February
The clouds parted (well there were gaps) and old yellow face appeared in and out in a dancing and teasing fashion. The good news is he's now pretty much cleared the trees so weather permitting for me the 2018 solar season has begun, on, an albeit at the moment weekend basis. Still need to iron out the tuning on the DS50 and a blocking filter reflection to sort out, but, for the moment that's just tweaking some mechanics when the sun is out for long enough to do so.
Till then, first sun in a month, DS50 and PGR Ch3, bit of barlow to get a full frame.
ha-full-disk-bw by Mark Townley, on Flickr
ha-full-disk-colour by Mark Townley, on Flickr
Next weekend off to Anglesey, if weather looks promising a full solar armoury will be taken. If its cloudy i'm going to the pub.
Mark
Till then, first sun in a month, DS50 and PGR Ch3, bit of barlow to get a full frame.
ha-full-disk-bw by Mark Townley, on Flickr
ha-full-disk-colour by Mark Townley, on Flickr
Next weekend off to Anglesey, if weather looks promising a full solar armoury will be taken. If its cloudy i'm going to the pub.
Mark
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Re: Sunday Sunshine - 4th February
That is a great shot with good detail, Mark ! Nice to have started the season with this.
Franco
Franco
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Re: Sunday Sunshine - 4th February
Nice (prom on the east limb too)
Robert
Robert
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- Montana
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Re: Sunday Sunshine - 4th February
Nice surge prom! glad you had your first taste of the season I had to go to work all day
Alexandra
Alexandra
- marktownley
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Re: Sunday Sunshine - 4th February
Thanks everyone! Fingers crossed the weather improves soon so we can see more of old yellow face.
http://brierleyhillsolar.blogspot.co.uk/
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- Carbon60
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Re: Sunday Sunshine - 4th February
Nice one, Mark. Good to see the solar season has begun for you.
Stu.
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Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
- eroel
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Re: Sunday Sunshine - 4th February
Mark:
Looks like you are on again.
Nice set of FD´s.
Best wishes,
Eric.
Looks like you are on again.
Nice set of FD´s.
Best wishes,
Eric.
- rsfoto
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Re: Sunday Sunshine - 4th February
Good Mark,
What is a DS50 ?
saludos Rainer
What is a DS50 ?
saludos Rainer
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°
- marktownley
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Re: Sunday Sunshine - 4th February
Thanks guys! The DS50 is a double stacked Lunt 50 Rainer
http://brierleyhillsolar.blogspot.co.uk/
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- rsfoto
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Re: Sunday Sunshine - 4th February
Thanks Markmarktownley wrote: ↑Mon Feb 05, 2018 7:48 pm Thanks guys! The DS50 is a double stacked Lunt 50 Rainer
I see the Lunt 50mm scope has a etalon inside and for double stacking you add on the fronmt anotjer etalon. I see you have the hotspot decentered.
¿ have you tried rotating the front etalon in order to center more the hotspot and so have a more even sun surface ?
I did that with my 2 Coronados and for fixing the position i put some rounds of electrical tape around them. Now they have an offset of 90°
saludos Rainer
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°
- marktownley
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Re: Sunday Sunshine - 4th February
Hi Rainer,
Yes, there is an off centre hot spot. I've only had the scope since the start of winter, and this is the 3rd or 4th time i've been able to use it so any views have been fleeting with no time for experimenting with the low sun catching gaps in between the trees and buildings. Hopefully as the year progresses and the sun gets higher it will allow me to experimenting more. Clocking the external etalon is on my list, was something I did with my Coronado DS40. I also have a ghost which is blocker / barlow related that needs dealing with too. My other thought is that off centre hot spots are a result of collimating and or refocusing lenses not sat orthogonal to the optical axis. Other than changing the focuser and running with a coronado blocker i've actually done nothing in the way of tweaks or mods to the scope, which, is very unusual for me! I have no doubt that I will
Mark
Yes, there is an off centre hot spot. I've only had the scope since the start of winter, and this is the 3rd or 4th time i've been able to use it so any views have been fleeting with no time for experimenting with the low sun catching gaps in between the trees and buildings. Hopefully as the year progresses and the sun gets higher it will allow me to experimenting more. Clocking the external etalon is on my list, was something I did with my Coronado DS40. I also have a ghost which is blocker / barlow related that needs dealing with too. My other thought is that off centre hot spots are a result of collimating and or refocusing lenses not sat orthogonal to the optical axis. Other than changing the focuser and running with a coronado blocker i've actually done nothing in the way of tweaks or mods to the scope, which, is very unusual for me! I have no doubt that I will
Mark
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: Sunday Sunshine - 4th February
Cheers Mark good to see you up and imaging .I do like your back up plan.
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Re: Sunday Sunshine - 4th February
Hi Mark...
Nice to see your results of the DS50...nicely detailed and I know you will get the fine tuning ironed out !!!
If you have to resort to the pub, have a scotch
Brian
Nice to see your results of the DS50...nicely detailed and I know you will get the fine tuning ironed out !!!
If you have to resort to the pub, have a scotch
Brian
Brian Colville
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:
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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