Search found 70 matches

by LTHB
Fri Jul 05, 2019 6:06 am
Forum: This is SolarChat !!
Topic: Spicules and dark mottles in h alpha, June 28th
Replies: 9
Views: 220

Re: Spicules and dark mottles in h alpha, June 28th

Thanks, folks!

Alexandra, your tutorial has been useful for me a couple of times, thanks!

Frank
by LTHB
Sat Jun 29, 2019 11:43 pm
Forum: This is SolarChat !!
Topic: Spicules and dark mottles in h alpha, June 28th
Replies: 9
Views: 220

Spicules and dark mottles in h alpha, June 28th

Finally an afternoon of blue skies, after weeks of milky haze and clouds, so an opportunity to try out a new filter and also a Photoshop tool I've never used before (following a hint I found in Alexandra‘s solar imaging tutorial), namely Shadows/Highlights. Seeing was okay to nice, and after lots of...
by LTHB
Thu May 30, 2019 7:15 pm
Forum: Solar Scope Modifications
Topic: Creative Solutions to the Problem of LARGE (8"+) ERF Cells
Replies: 9
Views: 590

Re: Creative Solutions to the Problem of LARGE (8"+) ERF Cells

It would certainly be great to have a supplier for large filter cells, but my experience with JTW Astronomy (trying to purchase a spectroscope from them) makes me sceptical that they will be a reliable producer. In any case I would never again make any down payment when ordering from them. Regards, ...
by LTHB
Tue May 21, 2019 3:19 pm
Forum: This is SolarChat !!
Topic: Solarchat forum extended 3 more years...
Replies: 12
Views: 494

Re: Solarchat forum extended 3 more years...

Yes, great news to have the best source of info for solar nuts on this planet for at least three more years! Thanks, Stephen!

Frank
by LTHB
Wed May 08, 2019 5:32 pm
Forum: This is SolarChat !!
Topic: May 7: H alpha and CaK
Replies: 11
Views: 321

Re: May 7: H alpha and CaK

Very nice pictures, very good resolution! Just what I would have LIKED to get yesterday, with clear blue skies over here, if the seeing hadn't been that [censored]... One question, if I may: You are using the 115mm refractor for CaK, not the C8 - is this for seeing reasons? I am asking because my ex...
by LTHB
Sun May 05, 2019 8:51 pm
Forum: This is SolarChat !!
Topic: Commercially Available Filter Cells For LARGE ERF's
Replies: 27
Views: 1327

Re: Commercially Available Filter Cells For LARGE ERF's

+1 for a Teleskop-Express filter cell for the 8" Aries-ERF. I got one for my Mewlon 210 (just like Marty's cell, but with a few milimeters more clear aperture) : https://www.teleskop-express.de/shop/pr ... 161mm.html

Frank
by LTHB
Wed Apr 10, 2019 12:01 pm
Forum: This is SolarChat !!
Topic: Saturday Sun 6th April
Replies: 15
Views: 480

Re: Saturday Sun 6th April

Valery, your observation that seeing is best between 20 and 30 degrees agrees with my results in the last couple of days - I will try to confirm if that holds generally for my location, too. Is there an obvious reason/explanation for that?
by LTHB
Wed Apr 10, 2019 11:55 am
Forum: This is SolarChat !!
Topic: Proms and spot April 9, 2019
Replies: 12
Views: 358

Re: Proms and spot April 9, 2019

Very fine images, great resolution!
by LTHB
Wed Apr 10, 2019 11:53 am
Forum: This is SolarChat !!
Topic: AR12738 CaK April 07
Replies: 8
Views: 294

Re: AR12738 CaK April 07

Thanks, Christian, Bart, Stu and Maurits!

Yes, the picture is taken with the Mewlon and DS. The Mewlon should give better resolution when sky conditions are better - I hope to get some while AR127328 is still around...

Regards,

Frank
by LTHB
Mon Apr 08, 2019 6:40 pm
Forum: This is SolarChat !!
Topic: CaK April 1st
Replies: 3
Views: 166

Re: CaK April 1st

Thanks, Mark and Maurits!
by LTHB
Mon Apr 08, 2019 6:38 pm
Forum: This is SolarChat !!
Topic: AR12738 CaK April 07
Replies: 8
Views: 294

Re: AR12738 CaK April 07

Thanks, Mark and Paul!
by LTHB
Mon Apr 08, 2019 6:36 pm
Forum: This is SolarChat !!
Topic: CaK and H-alpha, 07042019, new AR
Replies: 13
Views: 354

Re: CaK and H-alpha, 07042019, new AR

Nice images! I prefer the new version of the h-alpha.

Regards,

Frank
by LTHB
Sun Apr 07, 2019 10:50 pm
Forum: This is SolarChat !!
Topic: AR12738 CaK April 07
Replies: 8
Views: 294

AR12738 CaK April 07

Seeing was good today, too good not to try imaging the new sunspot, but lots of haze in the sky, so no really sharp images. The best I could get from a bunch of videos:

Image

Regards,

Frank
by LTHB
Sun Apr 07, 2019 11:52 am
Forum: This is SolarChat !!
Topic: Saturday Sun 6th April
Replies: 15
Views: 480

Re: Saturday Sun 6th April

Great images, considering the conditions! I was clouded out yesterday afternoon when I had just set up the scope.

Regards,

Frank
by LTHB
Sat Apr 06, 2019 8:55 pm
Forum: This is SolarChat !!
Topic: Ca K images - March 31 - TOA150
Replies: 6
Views: 285

Re: Ca K images - March 31 - TOA150

Very fine images, Christian! You are very lucky with the seeing conditions at your location!

Frank
by LTHB
Sat Apr 06, 2019 8:53 pm
Forum: This is SolarChat !!
Topic: CaK April 1st
Replies: 3
Views: 166

CaK April 1st

First opportunity for me to image after weeks of cloudy skies. Seeing was mediocre and the sky quite hazy, so no chance for high resolution, but a little time in the sun at least and one shot of the new active region. https://live.staticflickr.com/7858/40585136473_c27627985e_h.jpg Kind regards, Frank
by LTHB
Sat Mar 02, 2019 2:30 pm
Forum: This is SolarChat !!
Topic: Coronado 70 CaK first light
Replies: 10
Views: 437

Re: Coronado 70 CaK first light

Thanks Alexandra, Mark, Pedro and Bart! Mark, some pictures: https://farm8.staticflickr.com/7850/40291853173_ddbd1e655a_z.jpg https://farm8.staticflickr.com/7916/47256597441_4d7691385e_z.jpg https://farm8.staticflickr.com/7843/47256602021_f4d5328dde_z.jpg https://farm8.staticflickr.com/7855/32314608...
by LTHB
Fri Mar 01, 2019 9:51 am
Forum: This is SolarChat !!
Topic: Coronado 70 CaK first light
Replies: 10
Views: 437

Coronado 70 CaK first light

Looking for a CaK PST to get a second CaK filter for double stacking I found a used Coronado 70 CaK on a german forum a couple of weeks ago. I did not expect it to be in working condition but hoped for the magical PST no.1 filter to be o.k. Resisting the impulse to take it apart immediately when it ...
by LTHB
Mon Feb 11, 2019 5:06 pm
Forum: This is SolarChat !!
Topic: The most remarkable spots of the Cycle 24 through a large aperture.
Replies: 8
Views: 375

Re: The most remarkable spots of the Cycle 24 through a large aperture.

Breathtaking! (And also making me a little bit jealous of your fabulous PST etalon...)

Regards,

Frank
by LTHB
Mon Feb 11, 2019 5:06 pm
Forum: SPoD Archive
Topic: The most remarkable spots of the Cycle 24 through a large aperture.
Replies: 7
Views: 432

Re: The most remarkable spots of the Cycle 24 through a large aperture.

Breathtaking! (And also making me a little bit jealous of your fabulous PST etalon...)

Regards,

Frank
by LTHB
Fri Feb 08, 2019 5:57 pm
Forum: Solar Software
Topic: ImPPG version 0.5.4
Replies: 15
Views: 1071

Re: ImPPG version 0.5.4

Thanks for your work, very useful!!

Frank
by LTHB
Mon Dec 24, 2018 11:59 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Helium Disk: 08Aug2018 Spectroheliogram
Replies: 14
Views: 1273

Re: Helium Disk: 08Aug2018 Spectroheliogram

Hi Peter,

another +100!!

And thanks for the concise and very informative summary on He lines, very much appreciated!

Frank
by LTHB
Mon Dec 17, 2018 5:03 pm
Forum: SPoD Archive
Topic: Helium Disk: 08Aug2018 Spectroheliogram
Replies: 13
Views: 874

Re: Helium Disk: 08Aug2018 Spectroheliogram

Great and interesting work! A new (at least to me) view of the sun!

Have you researched already which layer(s) of the solar atmosphere is/are depicted in this way (in addition to filaments and proms)?

Thanks for showing!

Frank
by LTHB
Mon Dec 17, 2018 5:03 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Helium Disk: 08Aug2018 Spectroheliogram
Replies: 14
Views: 1273

Re: Helium Disk: 08Aug2018 Spectroheliogram

Great and interesting work! A new (at least to me) view of the sun!

Have you researched already which layer(s) of the solar atmosphere is/are depicted in this way (in addition to filaments and proms)?

Thanks for showing!

Frank
by LTHB
Sun Dec 09, 2018 11:35 am
Forum: SPoD Archive
Topic: AR12674 through 304mm scope. Day two.
Replies: 9
Views: 684

Re: AR12674 through 304mm scope. Day two.

Yes, please keep posting! Helps us through the dark and rainy months.