Search found 42637 matches

by marktownley
Wed Apr 24, 2024 7:40 pm
Forum: Solar Scope Modifications
Topic: Coronado BF30 rusted and repair
Replies: 1
Views: 106

Re: Coronado BF30 rusted and repair

Nice mod thanks Rainer
by marktownley
Wed Apr 24, 2024 7:25 pm
Forum: This is SolarChat !!
Topic: Sun FD in H-Alpha, CaK and Continuum April 22nd 2024
Replies: 4
Views: 53

Re: Sun FD in H-Alpha, CaK and Continuum April 22nd 2024

Very good disks thanks Arne, lots happening!
by marktownley
Wed Apr 24, 2024 7:23 pm
Forum: This is SolarChat !!
Topic: AR 3646 and 3644 WL with 9.25”
Replies: 10
Views: 173

Re: AR 3646 and 3644 WL with 9.25”

DavidP wrote: Tue Apr 23, 2024 7:52 pm Whereas I’ve heard of others consistently using from 0.7 to 0.9.
Suggests undersampling to me if those values are being used.
by marktownley
Wed Apr 24, 2024 7:20 pm
Forum: This is SolarChat !!
Topic: 24th April 3 lights
Replies: 5
Views: 83

Re: 24th April 3 lights

Nice disks Robert, thanks for sharing!
by marktownley
Wed Apr 24, 2024 7:18 pm
Forum: This is SolarChat !!
Topic: 23/4/24 FL and some close ups
Replies: 6
Views: 117

Re: 23/4/24 FL and some close ups

Looks good Rich
by marktownley
Wed Apr 24, 2024 7:15 pm
Forum: This is SolarChat !!
Topic: April 23 2024 White Light Observations.
Replies: 8
Views: 118

Re: April 23 2024 White Light Observations.

Nice to read your report thanks James
by marktownley
Wed Apr 24, 2024 7:14 pm
Forum: This is SolarChat !!
Topic: 23 April 2023
Replies: 8
Views: 146

Re: 23 April 2023

Good results thanks Ralph!
by marktownley
Wed Apr 24, 2024 7:14 pm
Forum: This is SolarChat !!
Topic: Lightbridge or not? AR 3634 with Soleye 300 Violet
Replies: 13
Views: 290

Re: Lightbridge or not? AR 3634 with Soleye 300 Violet

All depends whether the spot was emerging or decaying when the picture was taken. Laszlo, can you elaborate on the time and date of recording please.
by marktownley
Wed Apr 24, 2024 7:10 pm
Forum: This is SolarChat !!
Topic: Calcium prom attempts!
Replies: 24
Views: 626

Re: Calcium prom attempts!

that the proms were stronger with 40mm although perhaps at the expense of the disc being less sharp with the increased exposure. Does that happen or did it just seem to happen and it was coincidence with a change in seeing. With reduced aperture (and longer focal ratio) the bandpass of the filter w...
by marktownley
Tue Apr 23, 2024 8:11 pm
Forum: This is SolarChat !!
Topic: Full Disc 23-04-2024
Replies: 7
Views: 137

Re: Full Disc 23-04-2024

Lovely disks thanks Rainer!
by marktownley
Tue Apr 23, 2024 8:10 pm
Forum: This is SolarChat !!
Topic: Animations and playing around 4/22/2024
Replies: 7
Views: 128

Re: Animations and playing around 4/22/2024

Nice results Warren. I must be honest over the years I have completely unfavoufred and no longer use etalons in these cells that friction fit on dew shields, exactly for what you found, they sag and cause uneven illumination and tuning. My front mounted etalons only screw directly onto otas, and, th...
by marktownley
Tue Apr 23, 2024 7:16 pm
Forum: This is SolarChat !!
Topic: Sun 23 April 2024
Replies: 5
Views: 137

Re: Sun 23 April 2024

Nice disk!
by marktownley
Tue Apr 23, 2024 7:10 pm
Forum: This is SolarChat !!
Topic: Lightbridge or not? AR 3634 with Soleye 300 Violet
Replies: 13
Views: 290

Re: Lightbridge or not? AR 3634 with Soleye 300 Violet

Nice shots Lazslo. You are lucky to have such seeing conditions.

To answer your question, what do solar field strength charts show for the day of capture?
by marktownley
Tue Apr 23, 2024 7:04 pm
Forum: This is SolarChat !!
Topic: AR 3646 and 3644 WL with 9.25”
Replies: 10
Views: 173

Re: AR 3646 and 3644 WL with 9.25”

Nice shots David, maybe back off on the sharpening and levels a bit.
by marktownley
Tue Apr 23, 2024 6:42 pm
Forum: This is SolarChat !!
Topic: K-line and Ca-k from today
Replies: 24
Views: 512

Re: K-line and Ca-k from today

Are you testing the amount of tilt needed Dennis, or just using the tilt imparted by the shims that came with the filters?
by marktownley
Tue Apr 23, 2024 6:41 pm
Forum: This is SolarChat !!
Topic: Again some details in H-a with AR200/F8.5 - 23.04
Replies: 10
Views: 169

Re: Again some details in H-a with AR200/F8.5 - 23.04

Excellent views thanks Petr!
by marktownley
Tue Apr 23, 2024 6:39 pm
Forum: This is SolarChat !!
Topic: 18 April 2024 - HA testing
Replies: 4
Views: 105

Re: 18 April 2024 - HA testing

Nice shots Vin, I would agree with your conclusions.
by marktownley
Tue Apr 23, 2024 6:36 pm
Forum: This is SolarChat !!
Topic: Calcium Sunday 21st April
Replies: 11
Views: 167

Re: Calcium Sunday 21st April

Tanks folks! :)
by marktownley
Tue Apr 23, 2024 6:34 pm
Forum: This is SolarChat !!
Topic: CaK Sunshine 20th April
Replies: 17
Views: 311

Re: CaK Sunshine 20th April

Thanks Paul and Arne!
by marktownley
Tue Apr 23, 2024 5:43 pm
Forum: This is SolarChat !!
Topic: 393.3nm K-Line imaging session w/stop down mask.
Replies: 36
Views: 683

Re: 393.3nm K-Line imaging session w/stop down mask.

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. Cutting out a cardboard ring will be easier. True. It won’t look as good or last as long but it will work. Just pop it in the dew shield, no need for tape or anything. Tak...
by marktownley
Tue Apr 23, 2024 5:39 am
Forum: This is SolarChat !!
Topic: Calcium Sunday 21st April
Replies: 11
Views: 167

Re: Calcium Sunday 21st April

Thanks John!
by marktownley
Tue Apr 23, 2024 5:39 am
Forum: SPoD Archive
Topic: 23rd April..Lots of sunspots
Replies: 6
Views: 51

Re: 23rd April..Lots of sunspots

Great captures John! Good to see the numbers going up.
by marktownley
Tue Apr 23, 2024 5:39 am
Forum: This is SolarChat !!
Topic: 23rd April..Lots of sunspots
Replies: 7
Views: 149

Re: 23rd April..Lots of sunspots

Great captures John! Good to see the numbers going up.
by marktownley
Tue Apr 23, 2024 5:37 am
Forum: This is SolarChat !!
Topic: April 22 2024 Ha Observations.
Replies: 6
Views: 100

Re: April 22 2024 Ha Observations.

Half an hour well spent James, glad you got a view in.
by marktownley
Tue Apr 23, 2024 5:37 am
Forum: This is SolarChat !!
Topic: April 22nd FD Images
Replies: 11
Views: 147

Re: April 22nd FD Images

Great results Brian, thanks for sharing!
by marktownley
Tue Apr 23, 2024 5:36 am
Forum: This is SolarChat !!
Topic: 393.3nm K-Line imaging session w/stop down mask.
Replies: 36
Views: 683

Re: 393.3nm K-Line imaging session w/stop down mask.

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.
Cutting out a cardboard ring will be easier.
by marktownley
Tue Apr 23, 2024 5:32 am
Forum: This is SolarChat !!
Topic: Sol from the 21 of April 2024.
Replies: 9
Views: 138

Re: Sol from the 21 of April 2024.

Great results thanks Eric!
by marktownley
Tue Apr 23, 2024 5:31 am
Forum: This is SolarChat !!
Topic: My New Calcium K Lunt blocking filter is lovely
Replies: 9
Views: 171

Re: My New Calcium K Lunt blocking filter is lovely

Nice results! Congrats on the new CaK filter!
by marktownley
Tue Apr 23, 2024 5:27 am
Forum: This is SolarChat !!
Topic: Calcium Sunday 21st April
Replies: 11
Views: 167

Re: Calcium Sunday 21st April

Thanks guys, appreciate the comments.
by marktownley
Mon Apr 22, 2024 7:55 pm
Forum: This is SolarChat !!
Topic: Calcium Sunday 21st April
Replies: 11
Views: 167

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...
by marktownley
Mon Apr 22, 2024 7:45 pm
Forum: This is SolarChat !!
Topic: Saturday 20th April 2024
Replies: 20
Views: 244

Re: Saturday 20th April 2024

Lovely shots Alexandra, wish you had got longer. Clouded for me around 11am.
by marktownley
Mon Apr 22, 2024 6:20 pm
Forum: This is SolarChat !!
Topic: 393.3nm K-Line imaging session w/stop down mask.
Replies: 36
Views: 683

Re: 393.3nm K-Line imaging session w/stop down mask.

DeepSolar64 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.
Yes, the C102 will do well, even better if you stop it down to 66mm ;)
by marktownley
Mon Apr 22, 2024 6:18 pm
Forum: This is SolarChat !!
Topic: NEAF Saturday visit
Replies: 21
Views: 393

Re: NEAF Saturday visit

Nice to read and see!
by marktownley
Mon Apr 22, 2024 6:18 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20240422) | FDs 4 ligths + Sol'Ex
Replies: 14
Views: 224

Re: Today's SUN (20240422) | FDs 4 ligths + Sol'Ex

Great to see thanks Pedro!
by marktownley
Mon Apr 22, 2024 6:17 pm
Forum: This is SolarChat !!
Topic: 20 Apr '24 Ha and WL
Replies: 11
Views: 273

Re: 20 Apr '24 Ha and WL

Top shots thanks Wayne!
by marktownley
Mon Apr 22, 2024 6:15 pm
Forum: This is SolarChat !!
Topic: 22 April 2024
Replies: 10
Views: 178

Re: 22 April 2024

Cracking images thanks Ralph!
by marktownley
Mon Apr 22, 2024 6:15 pm
Forum: This is SolarChat !!
Topic: K-line and Ca-k from today
Replies: 24
Views: 512

Re: K-line and Ca-k from today

Very good indeed thanks Dennis!
by marktownley
Mon Apr 22, 2024 6:14 pm
Forum: This is SolarChat !!
Topic: Full Disc 21-04-2024
Replies: 9
Views: 181

Re: Full Disc 21-04-2024

Always love to see your disks thanks Rainer!
by marktownley
Mon Apr 22, 2024 6:12 pm
Forum: This is SolarChat !!
Topic: Sol from the 20th of April 2024.
Replies: 10
Views: 202

Re: Sol from the 20th of April 2024.

An excellent set there Eric!
by marktownley
Mon Apr 22, 2024 6:11 pm
Forum: This is SolarChat !!
Topic: CaK Sunshine 20th April
Replies: 17
Views: 311

Re: CaK Sunshine 20th April

Thanks guys, just about to process yesterdays CaK images.
by marktownley
Mon Apr 22, 2024 6:10 pm
Forum: This is SolarChat !!
Topic: Triple Stack
Replies: 24
Views: 623

Re: Triple Stack

Super addition!
by marktownley
Mon Apr 22, 2024 6:09 pm
Forum: This is SolarChat !!
Topic: Sun of 04.21.2024
Replies: 3
Views: 90

Re: Sun of 04.21.2024

Lovely capture ROss!
by marktownley
Mon Apr 22, 2024 6:09 pm
Forum: This is SolarChat !!
Topic: Sol 21-4-24
Replies: 7
Views: 139

Re: Sol 21-4-24

Excellent disks Steve!