Search found 181 matches

by allhoest
Tue Jul 10, 2018 7:39 pm
Forum: This is SolarChat !!
Topic: No spot, some surface features
Replies: 5
Views: 97

Re: No spot, some surface features

Hi!
Thank you for the feedback.
The spicules look to me like a bush with a few trees.
I still wondering their shape.
CS
Alex
by allhoest
Mon Jul 09, 2018 5:25 pm
Forum: This is SolarChat !!
Topic: No spot, some surface features
Replies: 5
Views: 97

No spot, some surface features

Hi! One more period with no sunspot... Just a few filaments and protuberances: http://www.presencenet.be/nucleus2.0/media/13/20180709-20180708_S01_12_08-34-13_S035_..._Col.jpg and some surface strange features: http://www.presencenet.be/nucleus2.0/media/13/20180709-20180708_S03_13_10-30-34_S050_..._...
by allhoest
Wed Jul 04, 2018 8:04 pm
Forum: This is SolarChat !!
Topic: July 4th SM40 FD not much going on ...
Replies: 6
Views: 101

Re: July 4th SM40 FD not much going on ...

Your details are very fine.
Can you give a try on the protuberances?
There is probably more to see there.
CS
Alex
by allhoest
Wed Jul 04, 2018 7:35 pm
Forum: This is SolarChat !!
Topic: Sun and moon from July3
Replies: 6
Views: 108

Re: Sun and moon from July3

Hi! I'm happy to see that the protuberances are still active. Why didn't you straight continue imaging the sun in the morning? The seeing is expected to be better on the morning. At my last session, I really detected poor imaging conditions at 07:00 to 08:00, when the sun was too low, better from 08...
by allhoest
Tue Jul 03, 2018 7:14 pm
Forum: Solar Scope Modifications
Topic: Baader Telecentric - Lower flux in blue/CaK?
Replies: 4
Views: 718

Re: Baader Telecentric - Lower flux in blue/CaK?

From an other forum, I get that the coating was not the same on the different version of the TZ4
CS
Alex
by allhoest
Mon Jul 02, 2018 5:27 pm
Forum: This is SolarChat !!
Topic: Jun 26, T250, Telecentric x5, CaK
Replies: 8
Views: 168

Re: Jun 26, T250, Telecentric x5, CaK

Thank you Alexandra. TheSkyBurner, posting an unprocessed animation is quite heavy, but here is one frame. Some comments from my side. I'm testing various “barlow” combinations. Here, with a telecentric x5, thus the resulting data are F 8750mm, and F/D 35. These values are much too high for my local...
by allhoest
Mon Jul 02, 2018 12:17 pm
Forum: Solar Scope Modifications
Topic: Baader Telecentric - Lower flux in blue/CaK?
Replies: 4
Views: 718

Re: Baader Telecentric - Lower flux in blue/CaK?

Hi! The camera is a ZWO ASI174MM The CaK partially moded -> first 2 filters removed, replaced by a KLine. There is a prefilter. The scope is a Newton D250mm I have made several tests with the same setup, just changing the amplification with different “barlows”: powermate x2, x2.4, x4, TZ4 and custom...
by allhoest
Sun Jul 01, 2018 7:42 pm
Forum: Solar Scope Modifications
Topic: Baader Telecentric - Lower flux in blue/CaK?
Replies: 4
Views: 718

Baader Telecentric - Lower flux in blue/CaK?

Hi, While using a Baader TZ4 for CaK imaging, I noticed that the sensor exposure time was ~5x longer than it should normally be. Is the coating characteristics of these baader TZ2/TZ4 known? I guess that the TZ3 is designed for the new Triband-SCT, thus leaving the blue spectrum passing through. May...
by allhoest
Sun Jul 01, 2018 7:23 pm
Forum: This is SolarChat !!
Topic: Jun 26, T250, Telecentric x5, CaK
Replies: 8
Views: 168

Jun 26, T250, Telecentric x5, CaK

Hi!
Everything is in the subject: CaK pictures taken on June 26th with a 250mm newton combined with a TZ5.
CS
Alex.

Image





Image
by allhoest
Sun Jun 10, 2018 7:40 pm
Forum: This is SolarChat !!
Topic: Sol from the 4th of June 2018.
Replies: 14
Views: 405

Re: Sol from the 4th of June 2018.

Eric, I'm passing trough the posts.
I wonder the CaK proms on your pics.
Congrats!
CS
Alex
by allhoest
Sun Jun 10, 2018 7:37 pm
Forum: This is SolarChat !!
Topic: Dont fall out of your chair...
Replies: 6
Views: 402

Re: Dont fall out of your chair...

This image is sooooo fantastic.
But the video express so much the dynamics. Fan-tas-tic!
CS
Alex
by allhoest
Sun Jun 10, 2018 7:17 pm
Forum: This is SolarChat !!
Topic: Sol from the 9th of June 2018.
Replies: 7
Views: 224

Re: Sol from the 9th of June 2018.

Very fine pics Eric; my preference go for the CaK.
CS
Alex
by allhoest
Sun Jun 10, 2018 7:15 pm
Forum: This is SolarChat !!
Topic: Solar action 3rd June Ha
Replies: 7
Views: 214

Re: Solar action 3rd June Ha

Very fine pics!
CS
Alex
by allhoest
Mon May 28, 2018 7:22 pm
Forum: This is SolarChat !!
Topic: T250 + Telecentric x5
Replies: 9
Views: 319

Re: T250 + Telecentric x5

Thanks.
According to the local turbulence, I'm not sure that I could get better results.
I should find a site with better conditions.

CS
Alex.
by allhoest
Mon May 28, 2018 7:18 pm
Forum: This is SolarChat !!
Topic: Sunday Sun 27th May
Replies: 10
Views: 279

Re: Sunday Sun 27th May

Very contrasted 3D looking high res. pic.!
CS
Alex
by allhoest
Sun May 27, 2018 9:49 am
Forum: This is SolarChat !!
Topic: T250 + Telecentric x5
Replies: 9
Views: 319

T250 + Telecentric x5

Hi! Second trial of a TZ5. This time, the capture was made earlier on the morning in the hope for better turbulence. The picture is shown at full resolution. http://www.presencenet.be/nucleus2.0/media/13/20180527-20180520_02_S01_12..._j080.jpg CS Alex 2018May20 Solar Netwon T250 Telecentric X5 ASI 1...
by allhoest
Sun May 27, 2018 9:41 am
Forum: This is SolarChat !!
Topic: Sol 22-5-2018 Ha
Replies: 15
Views: 448

Re: Sol 22-5-2018 Ha

I wish you would have used a barlow to capture the prom. It looks to be liked to an eruptive event.
CS
Alex
by allhoest
Sun May 27, 2018 9:24 am
Forum: This is SolarChat !!
Topic: Monday Sun 21st May
Replies: 14
Views: 426

Re: Monday Sun 21st May

Fine pics!
CS
Alex
by allhoest
Sun May 27, 2018 9:16 am
Forum: This is SolarChat !!
Topic: April 29th Session
Replies: 14
Views: 419

Re: April 29th Session

Nice shots.
Personally, I like the active spots and high resolutions.
So my preference are the first and last images.
CS
Alex
by allhoest
Sun May 27, 2018 9:14 am
Forum: This is SolarChat !!
Topic: The Sun on May 5 2018 as seen with 280mm aperture.
Replies: 16
Views: 740

Re: The Sun on May 5 2018 as seen with 280mm aperture.

Great shot in CaK.
I look forward for your next posts with the new corrective lens.
CS
Alex.
by allhoest
Sun May 27, 2018 9:02 am
Forum: This is SolarChat !!
Topic: Sol from the 26th of May 2018.
Replies: 10
Views: 294

Re: Sol from the 26th of May 2018.

Very crispy pics.
Thanks Eric.
CS
Alex
by allhoest
Sun May 27, 2018 9:00 am
Forum: This is SolarChat !!
Topic: Today's SUN (20180526) | FDs (3 lights)
Replies: 9
Views: 325

Re: Today's SUN (20180526) | FDs (3 lights)

Thank Pedro.

We don't need to go to spaceweather to figure the sun activity. You have a wonderful survey!

CS
Alex
by allhoest
Sat May 26, 2018 7:18 pm
Forum: Solar Scope Modifications
Topic: Lunt CaK B1800, inside visual inspection
Replies: 16
Views: 942

Re: Lunt CaK B1800, inside visual inspection

The view through the front assembly shows a purple cast, in accordance with the curve of these filters, posted on this forum
The picture is "quickly" taken with a smart phone.
by allhoest
Sat May 26, 2018 7:17 pm
Forum: Solar Scope Modifications
Topic: Lunt CaK B1800, inside visual inspection
Replies: 16
Views: 942

Re: Lunt CaK B1800, inside visual inspection

2018May26 - Additional notes

I couldn't remove the adapter holding the 3rd filter.
Indeed, the parts connected to the diagonal look to be glued.

Image

CS
Alex