Search found 5573 matches

by Carbon60
Wed Jan 23, 2019 8:24 pm
Forum: This is SolarChat !!
Topic: New AR. is it the sign of the new cycle?
Replies: 6
Views: 84

Re: New AR. is it the sign of the new cycle?

Interesting, Mark.

Stu.
by Carbon60
Wed Jan 23, 2019 8:22 pm
Forum: This is SolarChat !!
Topic: Sunspot in AR2733 in High Res HA | Jan 23rd 2019
Replies: 5
Views: 24

Re: Sunspot in AR2733 in High Res HA | Jan 23rd 2019

Nice set of images, Marty. Good to see a bit of activity at last.

Stu.
by Carbon60
Wed Jan 23, 2019 8:19 pm
Forum: This is SolarChat !!
Topic: My first images of 2019
Replies: 9
Views: 59

Re: My first images of 2019

Very nice images, Raf.

Stu.
by Carbon60
Wed Jan 23, 2019 8:15 pm
Forum: This is SolarChat !!
Topic: AR12733 - 23rd Jan
Replies: 3
Views: 15

Re: AR12733 - 23rd Jan

Good to see you’re getting some Sun, Dave. Nice images.

Stu.
by Carbon60
Tue Jan 22, 2019 12:28 pm
Forum: This is SolarChat !!
Topic: Today's Sun (20190120) | WL HR TEC140 F/7
Replies: 19
Views: 117

Re: Today's Sun (20190120) | WL HR TEC140 F/7

A full set of beautiful images, Pedro. The Sun is just so devoid of any features in all lights at the moment.

Stu.
by Carbon60
Tue Jan 22, 2019 12:22 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What camera?
Replies: 12
Views: 130

Re: What camera?

Hi Alexandra,

I use the Basler version (acA1920-155um IMX174) to image at both Ha and CaK wavelengths. I have never seen any NRs in CaK using this camera on any of my scopes with any of my Barlows. In the case of Ha I do have to tilt the camera a few degrees on occasion to remove them.


Stu.
by Carbon60
Tue Jan 22, 2019 6:43 am
Forum: This is SolarChat !!
Topic: CaK set-up and first try, 20012019
Replies: 17
Views: 153

Re: CaK set-up and first try, 20012019

Nice images and setup, Bart. Looks very promising. Good luck with your further optimisation trials.

Stu
by Carbon60
Tue Jan 22, 2019 6:38 am
Forum: This is SolarChat !!
Topic: SUN & SUPER MOON (20190120) before the eclipse
Replies: 12
Views: 177

Re: SUN & SUPER MOON (20190120) before the eclipse

Beautiful images, Pedro. Just clouds here.

Stu.
by Carbon60
Mon Jan 21, 2019 10:39 pm
Forum: This is SolarChat !!
Topic: First image from my eclipse set
Replies: 11
Views: 95

Re: First image from my eclipse set

Excellent image, Brian. Beautiful.

As with Mark and Alexandra, I was clouded out. I got up a couple of times in the night to check, with no luck. It turned foggy in the morning just to really ensure that I didn't see anything.

Stu.
by Carbon60
Mon Jan 21, 2019 10:08 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What camera?
Replies: 12
Views: 130

Re: What camera?

It also depends on the wavelength, of course. CCD critical sampling calculations can be found here www.wilmslowastro.com/software/formulae.htm The calculation suggests f22 in Ha and f37 in CaK for your 11” f10, Alexandra, using the IMX174 with 5.86um pixels. To see what this looks like use the FoV c...
by Carbon60
Mon Jan 21, 2019 8:31 pm
Forum: This is SolarChat !!
Topic: Ca-K from 17th
Replies: 7
Views: 64

Re: Ca-K from 17th

Very nice CaK FD and excellent prom, Dave. Off to a great start for 2019.

Stu.
by Carbon60
Mon Jan 21, 2019 8:26 pm
Forum: This is SolarChat !!
Topic: Solar reflections on the Moon.
Replies: 8
Views: 71

Re: Solar reflections on the Moon.

Lovely hues across the disk, Eric. Beautiful image.

I looked out of my bedroom window to check the weather during the eclipse only to be greeted by fog! Darn.

Stu.
by Carbon60
Sat Jan 19, 2019 8:17 am
Forum: This is SolarChat !!
Topic: Prom Jan 17, 2019
Replies: 7
Views: 94

Re: Prom Jan 17, 2019

Another very fine image, Phil.

Stu.
by Carbon60
Sat Jan 19, 2019 8:16 am
Forum: This is SolarChat !!
Topic: Proms Jan. 18, 2019
Replies: 9
Views: 75

Re: Proms Jan. 18, 2019

Very nice indeed, Phil.

Lovely images.

Stu.
by Carbon60
Sat Jan 19, 2019 8:13 am
Forum: This is SolarChat !!
Topic: Solar proms, surface and edge in Ha 119 Jan 2019
Replies: 13
Views: 103

Re: Solar proms, surface and edge in Ha 119 Jan 2019

Looking very promising, Ken.

Nice proms.

Stu.
by Carbon60
Tue Jan 15, 2019 7:08 pm
Forum: This is SolarChat !!
Topic: Sol from the 13th of January 2019.
Replies: 6
Views: 128

Re: Sol from the 13th of January 2019.

Nice images, Eric.

Stu.
by Carbon60
Tue Jan 15, 2019 7:01 pm
Forum: This is SolarChat !!
Topic: SUN & MOON (20190112) | APM180/TV101 (video added)
Replies: 9
Views: 210

Re: SUN & MOON (20190112) | APM180/TV101 (video added)

Very nice, Pedro. Lovely moon images.

Stu.
by Carbon60
Tue Jan 15, 2019 6:56 pm
Forum: This is SolarChat !!
Topic: Sol from the 12th of January 2019.
Replies: 4
Views: 108

Re: Sol from the 12th of January 2019.

Lovely, crisp, images, Eric.

Stu.
by Carbon60
Tue Jan 15, 2019 6:54 pm
Forum: This is SolarChat !!
Topic: January 12th Session
Replies: 16
Views: 193

Re: January 12th Session

Brrrrrrrr.......fridgid. I don’t know how you cope in the cold.

Nice image and setup, Brian.

I’d love an observatory, but I have too many obstacles in the way. I have to chase the Sun from the front to the back garden around the house and between the trees as the days and season progresses.

Stu.
by Carbon60
Tue Jan 15, 2019 6:25 pm
Forum: This is SolarChat !!
Topic: Today's SUN (20190112) | PROMS
Replies: 12
Views: 177

Re: Today's SUN (20190112) | PROMS

Great images, Pedro.

So quiet, even in CaK.

Stu.
by Carbon60
Tue Jan 15, 2019 6:25 pm
Forum: This is SolarChat !!
Topic: 17092017-AR2680 and western limb
Replies: 12
Views: 581

Re: 17092017-AR2680 and western limb

Lovely historical shots, Bart.

Stu
by Carbon60
Tue Jan 15, 2019 6:17 pm
Forum: SPoD Archive
Topic: Pretty Prom from 12 Jan
Replies: 12
Views: 28

Re: Pretty Prom from 12 Jan

Interesting colour combo, Phil. Nicely imaged prom and spicules.

Stu.
by Carbon60
Tue Jan 15, 2019 6:17 pm
Forum: This is SolarChat !!
Topic: Pretty Prom from 12 Jan
Replies: 11
Views: 174

Re: Pretty Prom from 12 Jan

Interesting colour combo, Phil. Nicely imaged prom and spicules.

Stu.
by Carbon60
Tue Jan 15, 2019 6:14 pm
Forum: This is SolarChat !!
Topic: Sol from the 14th of January 2019.
Replies: 4
Views: 69

Re: Sol from the 14th of January 2019.

Nice images of a quiet Sun, Eric.

Stu.