Search found 24112 matches

by marktownley
Thu Aug 16, 2018 5:40 pm
Forum: This is SolarChat !!
Topic: First try @CAK
Replies: 4
Views: 42

Re: First try @CAK

Good images Bart!
by marktownley
Thu Aug 16, 2018 7:22 am
Forum: This is SolarChat !!
Topic: H-Alpha August 10th Lunt 152 - feedback wanted!
Replies: 5
Views: 120

Re: H-Alpha August 10th Lunt 152 - feedback wanted!

Can't find the original article, not sure it remains, but Bob Yoesle copy and pasted the (blue) text I was looking for into this discussion on cloudy nights. I think it explains what you are seeing. It's Andy Lunts words from the Lunt blog. https://www.cloudynights.com/topic/598850-lunt-230mm-honest...
by marktownley
Thu Aug 16, 2018 7:10 am
Forum: This is SolarChat !!
Topic: H-Alpha August 10th Lunt 152 - feedback wanted!
Replies: 5
Views: 120

Re: H-Alpha August 10th Lunt 152 - feedback wanted!

Hey Bojan. For me what I see when I look at the images, and easier to see on the last 2, is the sweetspot - that is you top centre of the image it is brighter, then it is surrounded by a smile shaped darker band, then the bottom left and right corners are brighter again. This annulus is the sweetspo...
by marktownley
Wed Aug 15, 2018 7:46 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 08Aug Disk: Spectral sweep through H-alpha.
Replies: 5
Views: 74

Re: 08Aug Disk: Spectral sweep through H-alpha.

This is excellent Peter and a reference for all as to what is on band and what is not...
by marktownley
Wed Aug 15, 2018 7:29 pm
Forum: This is SolarChat !!
Topic: 15th August AR2718
Replies: 6
Views: 55

Re: 15th August AR2718

That's a super full disk Robert, i'm 'in transit' in Manchester at the moment and it's raining...
by marktownley
Wed Aug 15, 2018 7:27 pm
Forum: This is SolarChat !!
Topic: Solar minimum group
Replies: 8
Views: 75

Re: Solar minimum group

Good capture Raf, I saw this one growing on GONG today.
by marktownley
Wed Aug 15, 2018 4:11 pm
Forum: This is SolarChat !!
Topic: Halfa Solar imaging with 228 truss refractor (2018.08.13)
Replies: 5
Views: 68

Re: Halfa Solar imaging with 228 truss refractor (2018.08.13)

They're very good Ale, your seeing conditions must be exceptional.

I love how on spaceweather.com they say the sun is blank and we are in the depths of solar minimum, with enough aperture and the right wavelength the sun is never blank :)
by marktownley
Wed Aug 15, 2018 4:08 pm
Forum: This is SolarChat !!
Topic: Full Sun Disk 20180814
Replies: 4
Views: 69

Re: Full Sun Disk 20180814

Always like your full disks Rainer!
by marktownley
Wed Aug 15, 2018 4:07 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20180814)
Replies: 6
Views: 134

Re: Today's SUN (20180814)

Looking good as always Pedro!
by marktownley
Wed Aug 15, 2018 4:07 pm
Forum: This is SolarChat !!
Topic: Sun 5th August 2018
Replies: 10
Views: 112

Re: Sun 5th August 2018

These are excellent Alexandra, I love results you get with the DSF100. Yup, that's the first spot of cycle 25 you got. I feel so much for Richard, I keep checking in on him on FB.
by marktownley
Wed Aug 15, 2018 4:01 pm
Forum: This is SolarChat !!
Topic: 3D???
Replies: 5
Views: 83

Re: 3D???

Great images! Hope the weather improves.
by marktownley
Wed Aug 15, 2018 3:59 pm
Forum: This is SolarChat !!
Topic: 11th of August, Ha HR & Prom, 150mm DS
Replies: 7
Views: 71

Re: 11th of August, Ha HR & Prom, 150mm DS

Excellent images Val!
by marktownley
Wed Aug 15, 2018 12:01 pm
Forum: This is SolarChat !!
Topic: another PST stage 2 mod
Replies: 9
Views: 199

Re: another PST stage 2 mod

Nice!
by marktownley
Mon Aug 13, 2018 4:14 pm
Forum: This is SolarChat !!
Topic: Ha Quantum filter PE 0.4Å
Replies: 33
Views: 287

Re: Ha Quantum filter PE 0.4Å

Guess they're all different!
by marktownley
Mon Aug 13, 2018 3:56 pm
Forum: This is SolarChat !!
Topic: Ha Quantum filter PE 0.4Å
Replies: 33
Views: 287

Re: Ha Quantum filter PE 0.4Å

It only drifts off on the HaT, after several hours Valery, and that has only been this summer when ambient temperatures have been 25c+ outside whilst imaging.
by marktownley
Mon Aug 13, 2018 3:11 pm
Forum: This is SolarChat !!
Topic: Ha Quantum filter PE 0.4Å
Replies: 33
Views: 287

Re: Ha Quantum filter PE 0.4Å

About temperature that is the next problem. I saw yesterday that in my area it is taking long time to cool down or nearly it does not cool down. I think I will have to add some fans to cool it down. Yesterday the Quantum remained for a very long time at 6563.0Å and the light was yellow. I had it ad...
by marktownley
Mon Aug 13, 2018 3:08 pm
Forum: This is SolarChat !!
Topic: Hα & Ca-H Solar 20180813
Replies: 5
Views: 58

Re: Hα & Ca-H Solar 20180813

Nice disks in this mornings gaps Thomas!
by marktownley
Mon Aug 13, 2018 12:30 pm
Forum: This is SolarChat !!
Topic: Sol from the 11th of August 2018.
Replies: 5
Views: 67

Re: Sol from the 11th of August 2018.

Very nice indeed!
by marktownley
Mon Aug 13, 2018 12:29 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20180811) imaged through high clouds
Replies: 5
Views: 107

Re: Today's SUN (20180811) imaged through high clouds

Not sure why, i'll have a look behind the scenes in case anything has changed...
by marktownley
Mon Aug 13, 2018 12:16 pm
Forum: This is SolarChat !!
Topic: Sol from the 12th of August 2018.
Replies: 9
Views: 102

Re: Sol from the 12th of August 2018.

Great set of disks there Eric!
by marktownley
Mon Aug 13, 2018 9:24 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 08Aug Spectroheliograms
Replies: 9
Views: 162

Re: 08Aug Spectroheliograms

Brill, thanks Peter :)
by marktownley
Sun Aug 12, 2018 6:46 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 08Aug Spectroheliograms
Replies: 9
Views: 162

Re: 08Aug Spectroheliograms

These images are stunning Peter. Can you process one for sodium and magnesium please?