Search found 25778 matches

by marktownley
Thu Jul 04, 2019 4:47 am
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 47
Views: 1077

Re: Planning my first PST mod and need some help

It will be all about spacing distances, this will be key. Some pictures of setup will help figure out what is going on.
by marktownley
Wed Jul 03, 2019 10:42 pm
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 405

Re: Flats from near full disk?

Yup, I thunk that is the best you will get with that method Rod, good result.
by marktownley
Wed Jul 03, 2019 10:40 pm
Forum: This is SolarChat !!
Topic: Wednesday Sunshine 3rd July
Replies: 8
Views: 156

Re: Wednesday Sunshine 3rd July

Thanks guys!

The bright point are there, definitely grab some images.

I should go to bed now, I have to be up and observing the sun in 6 hours :D
by marktownley
Wed Jul 03, 2019 7:26 pm
Forum: This is SolarChat !!
Topic: Wednesday Sunshine 3rd July
Replies: 8
Views: 156

Wednesday Sunshine 3rd July

I'm on a roll here, a good few days in a row! Today I decided to stack the SM90 with my LS50 etalon for a double stack view to make any cycle 25 bright points easier to see. Glad I did, as the area that was designated S6205 in the southern hemisphere seems to have a couple more smaller bright points...
by marktownley
Wed Jul 03, 2019 7:09 pm
Forum: Solar Scope Modifications
Topic: 10 improvements to my solar telescope set up
Replies: 7
Views: 242

Re: 10 improvements to my solar telescope set up

cool setup and some top tips
by marktownley
Wed Jul 03, 2019 2:09 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: cak present and past
Replies: 46
Views: 1113

Re: cak present and past

Some of them are cycle 25 - the spectroscopes like this delve deeper than telescope/filter setups...
by marktownley
Wed Jul 03, 2019 1:30 pm
Forum: This is SolarChat !!
Topic: Sun 2019 7 3
Replies: 8
Views: 165

Re: Sun 2019 7 3

More signs of 25! woohoo!
by marktownley
Wed Jul 03, 2019 10:22 am
Forum: This is SolarChat !!
Topic: Sun 2019 7 3
Replies: 8
Views: 165

Re: Sun 2019 7 3

Polar faculae, very nice!
by marktownley
Wed Jul 03, 2019 5:28 am
Forum: This is SolarChat !!
Topic: Tuesday Morning Sunshine - 2nd July
Replies: 7
Views: 171

Re: Tuesday Morning Sunshine - 2nd July

Thanks Bob, thanks Jack. It's an SM90ii scope Bob, but comes with 'history'; it was commissioned for the BBC 'Sky at Night' TV programme 7 or 8 years ago and according to Coronado from it's serial number was classed as a prototype scope. It had a couple of owners since then and i've been fortunate t...
by marktownley
Tue Jul 02, 2019 8:11 pm
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 405

Re: Flats from near full disk?

I think you will get better results with a camera with smaller pixels, the IMX174 sensor is best suited up at around f25 in Ha.
by marktownley
Tue Jul 02, 2019 8:07 pm
Forum: This is SolarChat !!
Topic: Tuesday Morning Sunshine - 2nd July
Replies: 7
Views: 171

Tuesday Morning Sunshine - 2nd July

Was pleased to wake up this morning to blue skies, so got out of bed nice and early to get some viewing in before work. Seeing wasn't great so lots of sub frames and lots of runs were key to picking out a best image. First up the full disk with the SM90 and GH3 ICX916M - again lots of people online ...
by marktownley
Tue Jul 02, 2019 7:41 pm
Forum: This is SolarChat !!
Topic: Saturday Sunshine with the SM90 - 29th June
Replies: 10
Views: 195

Re: Saturday Sunshine with the SM90 - 29th June

Thanks everyone! No flats Franco, just as it is off the camera chip.
by marktownley
Tue Jul 02, 2019 7:40 pm
Forum: This is SolarChat !!
Topic: Warm Sunshine & New Camera - 27th June
Replies: 22
Views: 387

Re: Warm Sunshine & New Camera - 27th June

Power supplies all the way for me Alexandra ;) I've noticed the frame rate of mine drops off quite rapidly when I go from 8 bit to 10 bit (I think I will only be using it in 8 bit). It's also considerably less efficient at Ha than my other Grasshopper, and like said a lot more noisier. Whilst I see ...
by marktownley
Tue Jul 02, 2019 7:29 pm
Forum: This is SolarChat !!
Topic: Cycle 25 Bright Points
Replies: 12
Views: 330

Re: Cycle 25 Bright Points

Here's S6205 in the southern hemisphere today, easy with the DS90, infact really quite bright! https://live.staticflickr.com/65535/48182327151_dc8319ed48_o.jpg s6205-cycle-25-bw by Mark Townley , on Flickr I wouldn't be surprised to see one of the bright points in the northern hemisphere get an 'S' ...
by marktownley
Tue Jul 02, 2019 7:20 pm
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 405

Re: Flats from near full disk?

Give it a go Maurits but I don't think you will get rid of the uneven illumination due to variation in bandpass across that quarks FOV, the variation in bandpass will always give a variation in detail. Doubt you will stitch images together for this reason (to get a full disk). My advice if you're af...
by marktownley
Tue Jul 02, 2019 4:43 am
Forum: This is SolarChat !!
Topic: Mostly spicules from July 1
Replies: 6
Views: 148

Re: Mostly spicules from July 1

These are nice shots Lou!
by marktownley
Tue Jul 02, 2019 4:41 am
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 405

Re: Flats from near full disk?

I'm not sure you can effectively, the full disk flat is a holy grail for solar!
by marktownley
Mon Jul 01, 2019 7:43 pm
Forum: This is SolarChat !!
Topic: Pores 2019 07 01 Solar Cycle 25
Replies: 5
Views: 125

Re: Sun 2019 07 01

An excellent set of images there Pepe!
by marktownley
Mon Jul 01, 2019 7:38 pm
Forum: This is SolarChat !!
Topic: Saturday Sunshine with the SM90 - 29th June
Replies: 10
Views: 195

Re: Saturday Sunshine with the SM90 - 29th June

Thanks Franco, not really tried the proms, they are on my list though. It is a good scope, very flat. I knew this before I bought it, so when the chance came up to purchase it I knew I had to drop the cash and buy it. It also sits very well with my seeing conditions, i'd rather have a smaller scope ...
by marktownley
Mon Jul 01, 2019 7:30 pm
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 405

Re: Flats from near full disk?

The unfocused flat is bigger on the chip than the focused image, so when the flat is applied its affects go beyond the limb of the sun.
by marktownley
Mon Jul 01, 2019 7:12 pm
Forum: This is SolarChat !!
Topic: Outreach activity (20190629) | OLA (Portugal)
Replies: 15
Views: 353

Re: Outreach activity (20190629) | OLA (Portugal)

Super day indeed Pedro, looks a great place.
by marktownley
Mon Jul 01, 2019 7:10 pm
Forum: This is SolarChat !!
Topic: Cycle 25 Bright Points
Replies: 12
Views: 330

Re: Cycle 25 Bright Points

It is Pedro.
latest_1024_0211.jpg
latest_1024_0211.jpg (135.54 KiB) Viewed 243 times
Todays bright point, visible in all the AIA wavelengths. Solen is telling us it's not the only activity from cycle 25 on view. http://www.solen.info/solar/
solen.jpg
solen.jpg (379.29 KiB) Viewed 243 times
by marktownley
Mon Jul 01, 2019 6:39 pm
Forum: This is SolarChat !!
Topic: Cycle 25 Bright Points
Replies: 12
Views: 330

Re: Cycle 25 Bright Points

Carbon60 wrote:
Mon Jul 01, 2019 5:51 pm
Let’s hope it really is the start of the activity uptick.

Thanks, Mark.

Stu.
It is the start of the uptick, it's just the rate of uptick that we want to be more rapid! :D