Search found 29236 matches

by marktownley
Tue Nov 24, 2020 9:56 pm
Forum: This is SolarChat !!
Topic: Solar Talk - Monday 23rd November 19.30UT
Replies: 30
Views: 320

Re: Solar Talk - Monday 23rd November 19.30UT

DeepSolar64 wrote:
Tue Nov 24, 2020 9:51 pm
Mark, have you a link to it on YouTube yet?
https://www.youtube.com/watch?v=9f8ULLN ... c6JAAE4dOA
by marktownley
Tue Nov 24, 2020 9:49 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: How would the Lunt 100mm (vs 80mm) perform in average UK conditions?
Replies: 16
Views: 121

Re: How would the Lunt 100mm (vs 80mm) perform in average UK conditions?

By a stroke of good luck a beautiful 130mm TMB refractor has come up that I can buy for a really good price. I’m a refractor addict. I’m tempted to purchase this and combine it with an ERF (Baader) and a H filter at the back. This way, if I wished, I could also use it at night (although that wouldn...
by marktownley
Tue Nov 24, 2020 9:47 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: How would the Lunt 100mm (vs 80mm) perform in average UK conditions?
Replies: 16
Views: 121

Re: How would the Lunt 100mm (vs 80mm) perform in average UK conditions?

SimonWalsh wrote:
Tue Nov 24, 2020 9:04 pm
100mm Tak.
I have a 100mm Tal Simon. With a decent focuser and tube rings on it is an excellent solar scope.

Mark
by marktownley
Tue Nov 24, 2020 7:40 pm
Forum: This is SolarChat !!
Topic: Full disk 23-11-2020
Replies: 12
Views: 76

Re: Full disk 23-11-2020

That's a cracking disk Rainer, thanks for sharing!
by marktownley
Tue Nov 24, 2020 7:39 pm
Forum: This is SolarChat !!
Topic: AR2783 November 21, 2020
Replies: 10
Views: 106

Re: AR2783 November 21, 2020

Superb images Franco! I get images like that with my HaT rarely, your seeing is better than mine.
by marktownley
Tue Nov 24, 2020 7:37 pm
Forum: This is SolarChat !!
Topic: November 24 2020 Observations. WL only
Replies: 3
Views: 24

Re: November 24 2020 Observations. WL only

Nice report James. The new active region is the largest since April 2019, cloud here today and work but hoping can get a look at it over the weekend.
by marktownley
Tue Nov 24, 2020 7:34 pm
Forum: This is SolarChat !!
Topic: AR2785 & New Big Spot and Looping Prominence!, Discs | Nov 23rd 2020
Replies: 14
Views: 147

Re: AR2785 & New Big Spot and Looping Prominence!, Discs | Nov 23rd 2020

That's a really nice collection of images Marty. Looks good at the obs.
by marktownley
Tue Nov 24, 2020 7:30 pm
Forum: This is SolarChat !!
Topic: Sunday Sunshine 22nd November
Replies: 7
Views: 46

Re: Sunday Sunshine 22nd November

Thanks Franco and Fabio, here's a shot of the active region and the departing limb.

Imageactive-regions-other-side-ha-bw by Mark Townley, on Flickr
by marktownley
Tue Nov 24, 2020 4:52 pm
Forum: This is SolarChat !!
Topic: Sunday Sunshine 22nd November
Replies: 7
Views: 46

Re: Sunday Sunshine 22nd November

Thanks Geoff!
by marktownley
Tue Nov 24, 2020 4:50 pm
Forum: Solar Scope Modifications
Topic: G band instead of Ca-k filter
Replies: 14
Views: 103

Re: G band instead of Ca-k filter

Simple answer, no! G-Band imaging to be 'true' G-band needs to be considerably narrower, like Ha or CaK - ultra narrowband. The 430nm filter is effectively only a narrow band filter, where it benefits is the shorter wavelength gives increased resolution over 540nm. Hi Mark, ... where it benefits is...
by marktownley
Tue Nov 24, 2020 4:25 pm
Forum: This is SolarChat !!
Topic: Sun 23rd Nov
Replies: 10
Views: 91

Re: Sun 23rd Nov

Nice shots John!
by marktownley
Tue Nov 24, 2020 4:23 pm
Forum: This is SolarChat !!
Topic: Time lapse AR 12785 from 23-11-2020
Replies: 4
Views: 40

Re: Time lapse AR 12785 from 23-11-2020

Great movie! I love the subtle flow of material.
by marktownley
Tue Nov 24, 2020 4:20 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20201123) | new AR, GOOD seeing
Replies: 9
Views: 171

Re: Today's SUN (20201123) | new AR, GOOD seeing

Very impressive indeed Pedro!
by marktownley
Tue Nov 24, 2020 4:19 pm
Forum: This is SolarChat !!
Topic: Sol from the 23rd of November 2020.
Replies: 7
Views: 43

Re: Sol from the 23rd of November 2020.

Very nice indeed Eric!
by marktownley
Tue Nov 24, 2020 4:16 pm
Forum: This is SolarChat !!
Topic: Sunday Sunshine 22nd November
Replies: 7
Views: 46

Sunday Sunshine 22nd November

Hi All, Apologies if i'm not as busy on here of late, work is just sapping all my time, meaning while I can find the time for a quick scan of posts I don't have the opportunity to respond to all. So, if I haven't responded to your post don't take offence, i'm just struggling to fit everything in the...
by marktownley
Tue Nov 24, 2020 3:58 pm
Forum: Solar Scope Modifications
Topic: G band instead of Ca-k filter
Replies: 14
Views: 103

Re: G band instead of Ca-k filter

Another thought, would stacking up with a double stack420nm CWL, 25mm Dia., Hard Coated OD 4.0 10nm result in a narrower band of 5nm or am I being really stupid. Simple answer, no! G-Band imaging to be 'true' G-band needs to be considerably narrower, like Ha or CaK - ultra narrowband. The 430nm fil...
by marktownley
Tue Nov 24, 2020 3:51 pm
Forum: This is SolarChat !!
Topic: Another Zoom Session ?
Replies: 7
Views: 75

Re: Another Zoom Session ?

Good plan!
by marktownley
Tue Nov 24, 2020 3:32 pm
Forum: This is SolarChat !!
Topic: Sunday fun in the Sun (22/11/20)
Replies: 13
Views: 125

Re: Sunday fun in the Sun (22/11/20)

Nice disks Alexandra!
by marktownley
Tue Nov 24, 2020 7:30 am
Forum: This is SolarChat !!
Topic: Solar Talk - Monday 23rd November 19.30UT
Replies: 30
Views: 320

Re: Solar Talk - Monday 23rd November 19.30UT

Thanks everyone for your kind words and support.
by marktownley
Mon Nov 23, 2020 10:29 pm
Forum: Solar Scope Modifications
Topic: G band instead of Ca-k filter
Replies: 14
Views: 103

Re: G band instead of Ca-k filter

Yes it would work, you might find you need a UV/IR filter with it too. I'd cut your teeth with the 80mm first rather than the c11.
by marktownley
Mon Nov 23, 2020 10:09 pm
Forum: This is SolarChat !!
Topic: Solar Talk - Monday 23rd November 19.30UT
Replies: 30
Views: 320

Re: Solar Talk - Monday 23rd November 19.30UT

Thanks everyone, i'll pop this in the reference library in a day or so time.
by marktownley
Mon Nov 23, 2020 7:00 pm
Forum: This is SolarChat !!
Topic: Ha 23 Nov. 2020
Replies: 10
Views: 94

Re: Ha 23 Nov. 2020

Brilliant shots!
by marktownley
Sun Nov 22, 2020 5:37 pm
Forum: This is SolarChat !!
Topic: Sunday Sun 22nd November 2020 - AR2783 & FD
Replies: 14
Views: 126

Re: Sunday Sun 22nd November 2020 - AR2783 & FD

Nice shots Stu, i'm just processing some from today too.