Hi,
After a drought of many weeks and getting back from NEAF here today's Sun in Full disk made out as usual from 9 images.
Best seen in new tab or window
Full disk Sun 27-04-2018
- rsfoto
- Way More Fun to Share It!!
- Posts: 6166
- Joined: Mon Jun 18, 2012 8:30 pm
- Location: San Luis Potosi, México
- Has thanked: 9414 times
- Been thanked: 5578 times
Full disk Sun 27-04-2018
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°
- MapleRidge
- Way More Fun to Share It!!
- Posts: 10199
- Joined: Fri Jan 13, 2012 11:58 pm
- Location: Cambray, ON Canada
- Has thanked: 64 times
- Been thanked: 4340 times
- Contact:
Re: Full disk Sun 27-04-2018
That's a very sharp FD image Rainer...well done
Brian
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:
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
- marktownley
- Librarian
- Posts: 42274
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20442 times
- Been thanked: 10247 times
- Contact:
Re: Full disk Sun 27-04-2018
That FD is excellent Rainer!
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!
-
- Way More Fun to Share It!!
- Posts: 12900
- Joined: Wed Oct 19, 2011 10:02 am
- Been thanked: 171 times
- rsfoto
- Way More Fun to Share It!!
- Posts: 6166
- Joined: Mon Jun 18, 2012 8:30 pm
- Location: San Luis Potosi, México
- Has thanked: 9414 times
- Been thanked: 5578 times
Re: Full disk Sun 27-04-2018
Hi and thanks everybody,
BTW the sky looked like in the image. Looks like the cloud filter helps
As you know I bought a Daystar Quantum PE 0.4 angström filter at NEAF 2018 and while talking to Jen Winter, Owner of Daystar and showed her my Coronado Double stack images she evaluated the image quality at about 0.4 angström based on the details.
Another interesting thing are the gradients visible in the small reduced images. I measured the median inside of that two marked circles and the difference is from the left 185 to the right 173 only 12 steps seems to be for us a huge difference
I then made an artificial flat with the center image of the mosaic.
applied it on the original image
and the flattened result looks like this
Then I measured the same spots again
Normal Flattened
145 173
156 181
164 187
152 178
131 162
Now my dilema is. ¿ should I flatten in future or not ? it is a lot of work
BTW the sky looked like in the image. Looks like the cloud filter helps
As you know I bought a Daystar Quantum PE 0.4 angström filter at NEAF 2018 and while talking to Jen Winter, Owner of Daystar and showed her my Coronado Double stack images she evaluated the image quality at about 0.4 angström based on the details.
Another interesting thing are the gradients visible in the small reduced images. I measured the median inside of that two marked circles and the difference is from the left 185 to the right 173 only 12 steps seems to be for us a huge difference
I then made an artificial flat with the center image of the mosaic.
applied it on the original image
and the flattened result looks like this
Then I measured the same spots again
Normal Flattened
145 173
156 181
164 187
152 178
131 162
Now my dilema is. ¿ should I flatten in future or not ? it is a lot of work
Last edited by rsfoto on Sun Apr 29, 2018 1:19 am, edited 1 time in total.
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°
- eroel
- Way More Fun to Share It!!
- Posts: 9408
- Joined: Mon Dec 19, 2011 10:45 pm
- Location: México D.F.
- Been thanked: 4904 times
Re: Full disk Sun 27-04-2018
Rainer:
The 9 piece mosaic should be better with flattened parts.
Abrazo,
Eric.
The 9 piece mosaic should be better with flattened parts.
Abrazo,
Eric.
- marktownley
- Librarian
- Posts: 42274
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20442 times
- Been thanked: 10247 times
- Contact:
Re: Full disk Sun 27-04-2018
Thanks for the update. Flatting mid disk and applying this to all panes should get rid of your gradient Rainer.
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!