Search found 26133 matches

by marktownley
Sun Sep 15, 2019 6:20 pm
Forum: This is SolarChat !!
Topic: Slim Pickings.... 14th Sept '19
Replies: 9
Views: 96

Re: Slim Pickings.... 14th Sept '19

Top shot Stu! The skies were very milky for me too.
by marktownley
Sat Sep 14, 2019 6:45 am
Forum: This is SolarChat !!
Topic: FD's September 12th
Replies: 9
Views: 69

Re: FD's September 12th

They're excellent disks Phil! Hoping to get a few images myself this morning if the weather holds...
by marktownley
Sat Sep 14, 2019 5:58 am
Forum: This is SolarChat !!
Topic: 45 Minutes in the life of a Quiescent Prom - 8th September
Replies: 22
Views: 207

Re: 45 Minutes in the life of a Quiescent Prom - 8th September

Thanks Pedro, thanks Brian, thanks Phil. That's what I found too Phil, the movement is subtle but there's quite a bit of it.
by marktownley
Fri Sep 13, 2019 5:16 am
Forum: This is SolarChat !!
Topic: Solar Wedges (old & new)
Replies: 8
Views: 158

Re: Solar Wedges (old & new)

You've got a very comprehensive collection Pedro!
by marktownley
Fri Sep 13, 2019 5:15 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 14May2019 Spectroheliograms: H alpha
Replies: 2
Views: 59

Re: 14May2019 Spectroheliograms: H alpha

These are great images Peter! I'm assuming the C4 is not front filtered at all - do you have no thermal issues with it?
by marktownley
Thu Sep 12, 2019 5:25 am
Forum: This is SolarChat !!
Topic: 14 May 2019 Spectroheliograms
Replies: 15
Views: 166

Re: 14 May 2019 Spectroheliograms

Always like looking at your images Peter. Glad you're on the road to recovery after your scare.
by marktownley
Thu Sep 12, 2019 5:16 am
Forum: Solar Scope Modifications
Topic: PST, how to replace that black box?
Replies: 46
Views: 415

Re: PST, how to replace that black box?

You've done a great job there Marty, nice engineering solution.
by marktownley
Tue Sep 10, 2019 7:51 pm
Forum: This is SolarChat !!
Topic: September 9th Ha
Replies: 11
Views: 111

Re: September 9th Ha

Nice disk Brian!
by marktownley
Tue Sep 10, 2019 5:08 pm
Forum: This is SolarChat !!
Topic: Lunt etalon
Replies: 7
Views: 220

Re: Lunt etalon

Having a look online it seems all Lunt etalons are stickered as double stack certified.

If, you can, try before you buy Maurits!
by marktownley
Tue Sep 10, 2019 5:28 am
Forum: This is SolarChat !!
Topic: Prom group Sept. 7th Quark/Questar
Replies: 14
Views: 124

Re: Prom group Sept. 7th Quark/Questar

That is an excellent image there Phil! Assuming you used a DERF up front?
by marktownley
Tue Sep 10, 2019 5:25 am
Forum: This is SolarChat !!
Topic: H-Alpha close-ups on 6 Sep
Replies: 12
Views: 162

Re: H-Alpha close-ups on 6 Sep

Great shot for the conditions Alfred. Lou asked exactly the question I was thinking of there...
by marktownley
Tue Sep 10, 2019 5:23 am
Forum: This is SolarChat !!
Topic: A day late and a penny short
Replies: 7
Views: 97

Re: A day late and a penny short

Good proms Lou! That IR cut would be a trouble maker in the scheme of things I can imagine ;)
by marktownley
Tue Sep 10, 2019 5:17 am
Forum: This is SolarChat !!
Topic: First animation with the Intes
Replies: 13
Views: 136

Re: First animation with the Intes

That's great Bart, I love the detail in the spicules.
by marktownley
Mon Sep 09, 2019 7:31 pm
Forum: This is SolarChat !!
Topic: Sol from the 8th of September 2019.
Replies: 8
Views: 108

Re: Sol from the 8th of September 2019.

Nice collection of images Eric!
by marktownley
Mon Sep 09, 2019 5:57 pm
Forum: Solar Scope Modifications
Topic: Budget scope for visual
Replies: 12
Views: 145

Re: Budget scope for visual

gradoj wrote:
Mon Sep 09, 2019 6:29 am
Can you recommend a uv/Ir filter that would be safe?
Any of the branded filters are fine
by marktownley
Mon Sep 09, 2019 5:48 am
Forum: Solar Scope Modifications
Topic: Layout of filters in a CaK PST
Replies: 10
Views: 160

Re: Layout of filters in a CaK PST

Merlin66 wrote:
Mon Sep 09, 2019 1:05 am
Weather and time permitting I'll test and measure transmission of each filter element.
Looking forward to the findings Ken :)
by marktownley
Mon Sep 09, 2019 5:46 am
Forum: Solar Scope Modifications
Topic: Budget scope for visual
Replies: 12
Views: 145

Re: Budget scope for visual

Yes, ditch the welding filter. Use and UV/IR filter in the first instance, you could always add a green filter to increase contrast.
by marktownley
Sun Sep 08, 2019 8:24 pm
Forum: This is SolarChat !!
Topic: QUARK Chromosphere Youtube Videos | Pedro RE'
Replies: 12
Views: 137

Re: QUARK Chromosphere Youtube Videos | Pedro RE'

Lots of nice cinema there Pedro
by marktownley
Sun Sep 08, 2019 7:42 pm
Forum: This is SolarChat !!
Topic: 45 Minutes in the life of a Quiescent Prom - 8th September
Replies: 22
Views: 207

Re: 45 Minutes in the life of a Quiescent Prom - 8th September

Thanks everyone! Jack, I use a Hinode solar guider to help things during capture, and, a SSM to trigger capture based on seeing. It's a very automated system, and while it runs away I can go off an make a coffee, read the newspaper etc. I then use ImPPG to align (before sharpening) on the solar radi...
by marktownley
Sun Sep 08, 2019 7:27 pm
Forum: This is SolarChat !!
Topic: Promtastic Sunday - 8th September
Replies: 6
Views: 64

Re: Promtastic Sunday - 8th September

Thanks guys!
by marktownley
Sun Sep 08, 2019 7:26 pm
Forum: This is SolarChat !!
Topic: Lunt etalon
Replies: 7
Views: 220

Re: Lunt etalon

Heya Chaps! Sorry Maurits, i've had this flagged to reply for a while. I have both etalons, the red one and the white one. You've noticed all the physical differences M80 v M90 thread size. The red one has a hinge tuner, same as the coronado SMxx etalons, the white one the etalon is tilted within th...