Search found 42614 matches
- Tue Apr 23, 2024 5:39 am
- Forum: This is SolarChat !!
- Topic: Calcium Sunday 21st April
- Replies: 6
- Views: 66
Re: Calcium Sunday 21st April
Thanks John!
- Tue Apr 23, 2024 5:39 am
- Forum: This is SolarChat !!
- Topic: 23rd April..Lots of sunspots
- Replies: 1
- Views: 23
Re: 23rd April..Lots of sunspots
Great captures John! Good to see the numbers going up.
- Tue Apr 23, 2024 5:37 am
- Forum: This is SolarChat !!
- Topic: April 22 2024 Ha Observations.
- Replies: 3
- Views: 35
Re: April 22 2024 Ha Observations.
Half an hour well spent James, glad you got a view in.
- Tue Apr 23, 2024 5:37 am
- Forum: This is SolarChat !!
- Topic: April 22nd FD Images
- Replies: 1
- Views: 24
Re: April 22nd FD Images
Great results Brian, thanks for sharing!
- Tue Apr 23, 2024 5:36 am
- Forum: This is SolarChat !!
- Topic: 393.3nm K-Line imaging session w/stop down mask.
- Replies: 27
- Views: 487
Re: 393.3nm K-Line imaging session w/stop down mask.
Cutting out a cardboard ring will be easier.DeepSolar64 wrote: ↑Tue Apr 23, 2024 1:55 am Now only if I can find a large plastic jar lid that will fit the dew shade on the C102. 66mm would be an improvement over 40mm.
- Tue Apr 23, 2024 5:32 am
- Forum: This is SolarChat !!
- Topic: Sol from the 21 of April 2024.
- Replies: 3
- Views: 37
Re: Sol from the 21 of April 2024.
Great results thanks Eric!
- Tue Apr 23, 2024 5:31 am
- Forum: This is SolarChat !!
- Topic: My New Calcium K Lunt blocking filter is lovely
- Replies: 2
- Views: 38
Re: My New Calcium K Lunt blocking filter is lovely
Nice results! Congrats on the new CaK filter!
- Tue Apr 23, 2024 5:28 am
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 21st 2024
- Replies: 12
- Views: 182
Re: Sun FD in H-Alpha, CaK and Continuum April 21st 2024
Lovely disks here Arne, thanks!
- Tue Apr 23, 2024 5:27 am
- Forum: This is SolarChat !!
- Topic: Calcium Sunday 21st April
- Replies: 6
- Views: 66
Re: Calcium Sunday 21st April
Thanks guys, appreciate the comments.
- Tue Apr 23, 2024 5:25 am
- Forum: This is SolarChat !!
- Topic: Closeup of selected regions in H-Alpha April 21st 2024
- Replies: 4
- Views: 35
Re: Closeup of selected regions in H-Alpha April 21st 2024
These are excellent thanks Arne!
- Mon Apr 22, 2024 7:55 pm
- Forum: This is SolarChat !!
- Topic: Calcium Sunday 21st April
- Replies: 6
- Views: 66
Calcium Sunday 21st April
Sunday was forecast to be cloudy, but by some miracle by 11am it cleared up partially. A decent wind from the northeast with scudding clouds meant the seeing was never going to be great, but transparency was very good and so I decided to dip into the blue end again. Still tweaking the CaK setup, and...
- Mon Apr 22, 2024 7:45 pm
- Forum: This is SolarChat !!
- Topic: Saturday 20th April 2024
- Replies: 7
- Views: 59
Re: Saturday 20th April 2024
Lovely shots Alexandra, wish you had got longer. Clouded for me around 11am.
- Mon Apr 22, 2024 6:20 pm
- Forum: This is SolarChat !!
- Topic: 393.3nm K-Line imaging session w/stop down mask.
- Replies: 27
- Views: 487
Re: 393.3nm K-Line imaging session w/stop down mask.
Yes, the C102 will do well, even better if you stop it down to 66mmDeepSolar64 wrote: ↑Mon Apr 22, 2024 1:22 am My C102 is an F10 so it may actually do quite well for K-Line imaging. I also have a 60mm F12 but it has an 0.965 focuser. The Antlia wedge will not fit it. That would be even better if it would.
- Mon Apr 22, 2024 6:18 pm
- Forum: This is SolarChat !!
- Topic: NEAF Saturday visit
- Replies: 19
- Views: 316
Re: NEAF Saturday visit
Nice to read and see!
- Mon Apr 22, 2024 6:18 pm
- Forum: This is SolarChat !!
- Topic: Today's SUN (20240422) | FDs 4 ligths + Sol'Ex
- Replies: 9
- Views: 128
Re: Today's SUN (20240422) | FDs 4 ligths + Sol'Ex
Great to see thanks Pedro!
- Mon Apr 22, 2024 6:17 pm
- Forum: This is SolarChat !!
- Topic: A couple of solar H-a details with AR200/F8.5 22.04.
- Replies: 10
- Views: 143
Re: A couple of solar H-a details with AR200/F8.5 22.04.
Very good thanks Peter!
- Mon Apr 22, 2024 6:17 pm
- Forum: This is SolarChat !!
- Topic: 20 Apr '24 Ha and WL
- Replies: 11
- Views: 235
Re: 20 Apr '24 Ha and WL
Top shots thanks Wayne!
- Mon Apr 22, 2024 6:16 pm
- Forum: This is SolarChat !!
- Topic: Today's SUN (20240421) | Player One cameras + Sol'Ex
- Replies: 11
- Views: 201
Re: Today's SUN (20240421) | Player One cameras + Sol'Ex
A nice collection Pedro!
- Mon Apr 22, 2024 6:15 pm
- Forum: This is SolarChat !!
- Topic: 22 April 2024
- Replies: 9
- Views: 145
Re: 22 April 2024
Cracking images thanks Ralph!
- Mon Apr 22, 2024 6:15 pm
- Forum: This is SolarChat !!
- Topic: K-line and Ca-k from today
- Replies: 13
- Views: 220
Re: K-line and Ca-k from today
Very good indeed thanks Dennis!
- Mon Apr 22, 2024 6:14 pm
- Forum: This is SolarChat !!
- Topic: Full Disc 21-04-2024
- Replies: 9
- Views: 172
Re: Full Disc 21-04-2024
Always love to see your disks thanks Rainer!
- Mon Apr 22, 2024 6:12 pm
- Forum: This is SolarChat !!
- Topic: Sol from the 20th of April 2024.
- Replies: 10
- Views: 176
Re: Sol from the 20th of April 2024.
An excellent set there Eric!
- Mon Apr 22, 2024 6:11 pm
- Forum: This is SolarChat !!
- Topic: CaK Sunshine 20th April
- Replies: 14
- Views: 228
Re: CaK Sunshine 20th April
Thanks guys, just about to process yesterdays CaK images.
- Mon Apr 22, 2024 6:10 pm
- Forum: This is SolarChat !!
- Topic: Triple Stack
- Replies: 24
- Views: 600
Re: Triple Stack
Super addition!
- Mon Apr 22, 2024 6:09 pm
- Forum: This is SolarChat !!
- Topic: Sun of 04.21.2024
- Replies: 3
- Views: 80
Re: Sun of 04.21.2024
Lovely capture ROss!
- Mon Apr 22, 2024 6:09 pm
- Forum: This is SolarChat !!
- Topic: Sol 21-4-24
- Replies: 5
- Views: 103
Re: Sol 21-4-24
Excellent disks Steve!
- Mon Apr 22, 2024 6:08 pm
- Forum: This is SolarChat !!
- Topic: life and death of a stain live April 21
- Replies: 8
- Views: 168
Re: life and death of a stain live April 21
Very good Paul!
- Mon Apr 22, 2024 6:07 pm
- Forum: This is SolarChat !!
- Topic: Ha Sunshine 20th April
- Replies: 14
- Views: 261
Re: Ha Sunshine 20th April
Thanks Stu!
- Mon Apr 22, 2024 4:42 pm
- Forum: This is SolarChat !!
- Topic: Ha from 24-3-24
- Replies: 5
- Views: 108
Re: Ha from 24-3-24
Lovely disks thanks Steve
- Mon Apr 22, 2024 4:41 pm
- Forum: This is SolarChat !!
- Topic: Animation SW Prom 18th April Up n Over Down Under
- Replies: 6
- Views: 110
Re: Animation SW Prom 18th April Up n Over Down Under
Lovely images thanks Peter
- Mon Apr 22, 2024 4:37 pm
- Forum: This is SolarChat !!
- Topic: Aprile 21st full disk white light and H alpha closeups
- Replies: 4
- Views: 124
Re: Aprile 21st full disk white light and H alpha closeups
Very nice thanks
- Mon Apr 22, 2024 5:37 am
- Forum: This is SolarChat !!
- Topic: Ha Sunshine 20th April
- Replies: 14
- Views: 261
Re: Ha Sunshine 20th April
Thanks everyone, appreciate your comments. I hope to image again soon with the big scope.
- Mon Apr 22, 2024 5:35 am
- Forum: This is SolarChat !!
- Topic: CaK Sunshine 20th April
- Replies: 14
- Views: 228
Re: CaK Sunshine 20th April
Thanks folks.Appreciate your comments.
- Sun Apr 21, 2024 4:02 pm
- Forum: This is SolarChat !!
- Topic: 393.3nm K-Line imaging session w/stop down mask.
- Replies: 27
- Views: 487
Re: 393.3nm K-Line imaging session w/stop down mask.
If seeing supports it, what happens if you image with the full aperture, do you observe a large decrease in contrast ? What is the the ideal focal ratio for k line imaging ? If you image down in UV at f6 (the native focal ratio of this scope) then the image is full of spherical aberation, which res...
- Sun Apr 21, 2024 3:54 pm
- Forum: This is SolarChat !!
- Topic: Ha Sunshine 20th April
- Replies: 14
- Views: 261
Re: Ha Sunshine 20th April
Thanks guys, appreciate your comments!
- Sun Apr 21, 2024 3:53 pm
- Forum: This is SolarChat !!
- Topic: CaK Sunshine 20th April
- Replies: 14
- Views: 228
Re: CaK Sunshine 20th April
Thanks Maurits!
- Sun Apr 21, 2024 8:49 am
- Forum: Solar Radio, Magnetometry and Spectroscopy
- Topic: New Spectroheliograph construction (based on 102mm refractor)
- Replies: 36
- Views: 1107
Re: New Spectroheliograph construction (based on 102mm refractor)
Lovely additions thanks!
- Sun Apr 21, 2024 8:33 am
- Forum: This is SolarChat !!
- Topic: CaK Sunshine 20th April
- Replies: 14
- Views: 228
CaK Sunshine 20th April
Following on from previous post with Saturdays Ha shots, here is the sequence from CaK from the day. I was optimistic of reasonable seeing, so dipped my toes in the water with the CaK full disk, but instead of the regular Skywatcher ED80 at f15 I decided to use the APM 100/800, stopped down to 53mm ...
- Sun Apr 21, 2024 7:25 am
- Forum: Solar Scope Modifications
- Topic: Tired of the Coronado BF15? Imaging...not visual
- Replies: 4
- Views: 170
Re: Tired of the Coronado BF15?
Enjoy the deep sky and F1 Rainer!
- Sun Apr 21, 2024 7:17 am
- Forum: This is SolarChat !!
- Topic: 21 April 2024
- Replies: 8
- Views: 172
Re: 21 April 2024
These are excellent thanks Ralph!
- Sun Apr 21, 2024 7:14 am
- Forum: This is SolarChat !!
- Topic: Ha Sunshine 20th April
- Replies: 14
- Views: 261
Ha Sunshine 20th April
Hi All, Saturday was forecast a nice day, and, depsite cloud bubbling later in the day turned out quite nice. A lovely day to be out in the (chilly!) spring sunshine. I'll start off backwards time wise, with the full disk for the overview, this was shot last as I was reserving the better seeing of t...
- Sun Apr 21, 2024 6:31 am
- Forum: This is SolarChat !!
- Topic: Ha and CaK disks 4/20/2024
- Replies: 18
- Views: 232
Re: Ha and CaK disks 4/20/2024
These are great Warren!
- Sun Apr 21, 2024 6:27 am
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 20th 2024
- Replies: 7
- Views: 170
Re: Sun FD in H-Alpha, CaK and Continuum April 20th 2024
A lovely set of disks thanks Arne!
- Sun Apr 21, 2024 6:23 am
- Forum: This is SolarChat !!
- Topic: Today's SUN (20240420) | Player One Neptune M first light
- Replies: 7
- Views: 185
Re: Today's SUN (20240420) | Player One Neptune M first light
An excellent set of images here Pedro!
- Sun Apr 21, 2024 6:21 am
- Forum: This is SolarChat !!
- Topic: 2024/04/20 - solar art
- Replies: 7
- Views: 261
Re: 2024/04/20 - solar art
Lovely! I like it!
- Sun Apr 21, 2024 5:38 am
- Forum: This is SolarChat !!
- Topic: 393.3nm K-Line imaging session w/stop down mask.
- Replies: 27
- Views: 487
Re: 393.3nm K-Line imaging session w/stop down mask.
There's a lot more contrast there JAmes! Good result!
- Sun Apr 21, 2024 5:26 am
- Forum: Solar Astronomy Shop and Swap
- Topic: Lunt Adapter for LS50/60FHa to LS50THa
- Replies: 6
- Views: 2375
Re: Lunt Adapter for LS50/60FHa to LS50THa
Hi Ivan, yes, M80x1mm
- Sun Apr 21, 2024 5:25 am
- Forum: Solar Scope Modifications
- Topic: Tired of the Coronado BF15? Imaging...not visual
- Replies: 4
- Views: 170
Re: Tired of the Coronado BF15?
Very nice adaptation there Rainer! THanks for sharing!
The ITF on that blocker looks rusted to me, it seems very cloudy.
The ITF on that blocker looks rusted to me, it seems very cloudy.
- Sat Apr 20, 2024 10:32 am
- Forum: This is SolarChat !!
- Topic: Saturday Sun 20th April 2024
- Replies: 14
- Views: 219
Re: Saturday Sun 20th April 2024
Lovely shot Stu! You did well to image before the cloud got you. It's just arrived here and cut my session short.
- Sat Apr 20, 2024 5:37 am
- Forum: This is SolarChat !!
- Topic: Calcium prom attempts!
- Replies: 18
- Views: 473
Re: Calcium prom attempts!
The ghosting could be coming from the filters, but also it could be coming from spurious light reflecting off the inner walls of the OTA and/or the Lunt module tube wall. Advanced high absorbing black paint on all internal surfaces could help reduce the glare. My money is on the 2 'ERF' filters in ...