Search found 207 matches

by allhoest
Fri Sep 14, 2018 6:17 pm
Forum: Solar Astronomy Shop and Swap
Topic: Truss Solar Newton T250 for Ha and CaK
Replies: 3
Views: 191

Re: Truss Solar Newton T250 for Ha and CaK

Thank you for the comments. Some words about the system. Optically, the design values are: F/D ~7, to be combined later to a telecentric x4 and come to high focal ratio number for imaging with a Halpha etalon. D is ~250mm; F is about 1700mm.   Some words about the system. The principle is a herschel...
by allhoest
Tue Sep 11, 2018 6:55 pm
Forum: Solar Astronomy Shop and Swap
Topic: Truss Solar Newton T250 for Ha and CaK
Replies: 3
Views: 191

Truss Solar Newton T250 for Ha and CaK

I'm renewing some of my equipment. I bought a camera and FSQ106 and will probably go for a bigger solar scope also. From my astrogear, the solar newton is for sale. Truss Solar Newton T250 for Ha and CaK Works also with the solar continuum Works also under the G band (430nm) The truss tube and mirro...
by allhoest
Tue Sep 11, 2018 6:55 pm
Forum: Solar Astronomy Shop and Swap
Topic: Solar Scintallation Monitor
Replies: 1
Views: 119

Solar Scintallation Monitor

This is the V1, original from Airylab
160Eur, which is 50% of current new price

Equipment available from Belgium.
Contact: allhoest@scarlet.be
by allhoest
Sun Aug 05, 2018 9:26 am
Forum: This is SolarChat !!
Topic: Denoise
Replies: 23
Views: 1081

Re: Denoise

Hello Bruce, Thank you for your comments on my image. To give some words on it, it has been made with a D250mm f7 newton coupled with a custom design telecentric x5. The resulting focal length is 8750mm, F/D35. These numbers are normally too big for my area where a very common seeing dominates. But ...
by allhoest
Mon Jul 30, 2018 3:38 am
Forum: This is SolarChat !!
Topic: Denoise
Replies: 23
Views: 1081

Re: Denoise

Maybe try this link for downloading the tif file:
download/file.php?id=33187

Alex
by allhoest
Mon Jul 30, 2018 3:35 am
Forum: This is SolarChat !!
Topic: Denoise
Replies: 23
Views: 1081

Re: Denoise

The post is back here :-) Thank you. Bruce, indeed a very long description, where I recognize the process. Maybe I was not patient enough with solar imaging to find out the right settings. I stopped using it in about 2014. Here is my last solar pic, stacked with 100 pics, sharpened with wavelets, an...
by allhoest
Sun Jul 29, 2018 8:11 pm
Forum: This is SolarChat !!
Topic: Sol from the 28th of July 2018.
Replies: 5
Views: 212

Re: Sol from the 28th of July 2018.

Very crispy CaK pics!
CS
Alex.
by allhoest
Sun Jul 29, 2018 8:07 pm
Forum: This is SolarChat !!
Topic: Dragon!
Replies: 9
Views: 269

Re: Dragon!

There is a lot of fine details! Great.
How did you managed the back disk? It is a bit non regular.
CS
Alex
by allhoest
Sun Jul 29, 2018 8:05 pm
Forum: This is SolarChat !!
Topic: Today's SUN (2018078) | HR granulation (TEC140)
Replies: 13
Views: 467

Re: Today's SUN (2018078) | HR granulation (TEC140)

Great granulation Pedro.
CS
Alex.
by allhoest
Sun Jul 29, 2018 8:02 pm
Forum: This is SolarChat !!
Topic: Solar Granulation with the Daystar Sodium Quark, Airylab HaT and SSM Firecapture Plugin - 26th July
Replies: 23
Views: 578

Re: Solar Granulation with the Daystar Sodium Quark, Airylab HaT and SSM Firecapture Plugin - 26th July

Good that fire capture supports the SSM.
I asked to the fire capture developer some year ago for it, but he had no interest and/or time.
Is the plugin working with the SSM from Airylab?

CS
Alex
by allhoest
Sun Jul 29, 2018 7:49 pm
Forum: This is SolarChat !!
Topic: What happened to the Denoise topic?
Replies: 9
Views: 302

Re: What happened to the Denoise topic?

Hi!
As it is now in the Solar Reference Library, is it so that we can’t reply to it anymore?
CS
Alex.
by allhoest
Fri Jul 20, 2018 5:57 pm
Forum: This is SolarChat !!
Topic: Denoise
Replies: 23
Views: 1081

Re: Denoise

I tried several denoising tools some years ago. I finally remained with neatimage. But I after some use, I was not convinced by the results, and stop using it. For solar imaging, we look for the finest detail. The noise is generally at a very high frequency level. There is no need to denoise low fre...
by allhoest
Thu Jul 19, 2018 8:46 pm
Forum: This is SolarChat !!
Topic: Mosiac of the active region 7/16
Replies: 7
Views: 265

Re: Mosiac of the active region 7/16

A mosaic at high resolution is very "hazardous" to me.
Too much depend on the seeing, especially for 6 frames. All frames must be good.
CS
Alex
by allhoest
Thu Jul 19, 2018 8:43 pm
Forum: This is SolarChat !!
Topic: 17 July: Some H alpha and Ca K shots
Replies: 10
Views: 343

Re: 17 July: Some H alpha and Ca K shots

Very contrasted!
CS
Alex
by allhoest
Thu Jul 19, 2018 8:42 pm
Forum: This is SolarChat !!
Topic: I keep trying
Replies: 15
Views: 436

Re: I keep trying

Every agrees on the excellent results for the aperture.
I should give a try with ImPPG...
CS
Alex
by allhoest
Thu Jul 19, 2018 8:39 pm
Forum: This is SolarChat !!
Topic: AR moving to the limb on July 18
Replies: 4
Views: 188

Re: AR moving to the limb on July 18

I like High res. shot, this one also :-)
For noise reduction I often apply a very noise reduction. I use a gaussian blur, starting at 0.3 pixel, then adjusting.
CS
Alex.
by allhoest
Thu Jul 19, 2018 8:39 pm
Forum: This is SolarChat !!
Topic: 15-07-2018 Daystar Quark very good seeing
Replies: 14
Views: 416

Re: 15-07-2018 Daystar Quark very good seeing

Very fine surface details.
CS
Alex
by allhoest
Thu Jul 19, 2018 8:32 pm
Forum: This is SolarChat !!
Topic: 14th July Ha and CaK sun
Replies: 12
Views: 363

Re: 14th July Ha and CaK sun

Your CaK also are very fine.
CS
Alex
by allhoest
Thu Jul 19, 2018 8:27 pm
Forum: This is SolarChat !!
Topic: Solar granulation and Ha 15th July
Replies: 12
Views: 410

Re: Solar granulation and Ha 15th July

Even for difficult seeing condition, the details of the chromosphere are well impressive.
I like the granulation too.
CS
Alex
by allhoest
Thu Jul 19, 2018 8:23 pm
Forum: This is SolarChat !!
Topic: AR from July 17
Replies: 9
Views: 297

Re: AR from July 17

A lot of details to be seen.
Great!
CS
Alex.
by allhoest
Thu Jul 19, 2018 8:22 pm
Forum: This is SolarChat !!
Topic: halpha sun of july 17th
Replies: 8
Views: 246

Re: halpha sun of july 17th

Stéphane, I always wonder your results with only 40mm aperture.
CS
Alex.
by allhoest
Thu Jul 19, 2018 8:20 pm
Forum: This is SolarChat !!
Topic: A Sunrise
Replies: 12
Views: 357

Re: A Sunrise

Nice :-)
CS
Alex
by allhoest
Thu Jul 19, 2018 8:19 pm
Forum: This is SolarChat !!
Topic: Trying Astra Image for Solar Images
Replies: 9
Views: 376

Re: Trying Astra Image for Solar Images

Extremly detailled chrom picture. Congrats.
The spicules are very fine also.
CS
Alex.
by allhoest
Thu Jul 19, 2018 4:55 pm
Forum: This is SolarChat !!
Topic: Who said there is no activity? (T250 + Ha)
Replies: 9
Views: 324

Re: Who said there is no activity? (T250 + Ha)

Thanks for the nice comments.
There is (was?) a nice active zone passing through since a few days.
I can't really say that it is a remainder of a former spot. I must confess that I'm not very active, nor watching everything day, unfortunately.

CS
Alex