Search found 3251 matches

by Valery
Mon Jun 17, 2019 6:35 pm
Forum: This is SolarChat !!
Topic: Drama from 17 june
Replies: 11
Views: 64

Re: Drama from 17 june

Amazing prominences images! Congrats, Maurits.

Looks like your Quark is a keeper.


Valery
by Valery
Sat Jun 15, 2019 3:43 am
Forum: This is SolarChat !!
Topic: June 6th Session
Replies: 14
Views: 166

Re: June 6th Session

Valery and Christopher, thanks for your feedback :bow Valery...I got the Quark as a potential to DS the modded CR-150/DSII system, but so far I have been playing around with the Quark alone. I usually apply flats at capture, so these should be corrected. Brian Understand. OK. But the flat field cor...
by Valery
Fri Jun 14, 2019 1:44 am
Forum: This is SolarChat !!
Topic: June 6th Session
Replies: 14
Views: 166

Re: June 6th Session

Nice session, Brian!

BTW. Why have you switched from Lunt DS module to the Quark Combo?
Have you applied the Flat Field to Quark images?


Valery
by Valery
Wed Jun 12, 2019 6:16 am
Forum: This is SolarChat !!
Topic: Sunday Sun 9th June-Ha 250mm RCT
Replies: 25
Views: 280

Re: Sunday Sun 9th June-Ha 250mm RCT

Very nice results, Stu! BTW Can you send me the best raw stacked image? I guess it can be more deep processed with hope for more details seen. Valery Hi Valery, Image sent. Please confirm receipt. I’ve assumed the address I have for you is current. Cheers Stu. Hi Stu, Please, check your post box. T...
by Valery
Tue Jun 11, 2019 1:54 pm
Forum: This is SolarChat !!
Topic: Sunday Sun 9th June-Ha 250mm RCT
Replies: 25
Views: 280

Re: Sunday Sun 9th June-Ha 250mm RCT

Very nice results, Stu!

BTW Can you send me the best raw stacked image? I guess it can be more deep processed with hope for more details seen.


Valery
by Valery
Tue Jun 11, 2019 1:39 pm
Forum: This is SolarChat !!
Topic: Sun from Brazil - 2019/06/10
Replies: 10
Views: 154

Re: Sun from Brazil - 2019/06/10

Very well done, Ronnie! Nice series.

BTW. What the telescopes and etalons were used?


Valery
by Valery
Sat Jun 08, 2019 9:52 am
Forum: This is SolarChat !!
Topic: C11 vs Dunn Solat Telescope IBIS or how close can we get to best professionals in high res H-a.
Replies: 9
Views: 233

C11 vs Dunn Solat Telescope IBIS or how close can we get to best professionals in high res H-a.

Hi all, Browsing my older images taken with the first generation ARIES DERF, I have found a folder where I gazered many images in double stack. I found a picture which is very similar in morphology to the image taken with Dunn Solar Telescope (+ IBIS imaging spectrograph + adaptive closed loop optic...
by Valery
Fri Jun 07, 2019 6:10 pm
Forum: Solar Astronomy Shop and Swap
Topic: Ha Quark Daystar + Tecnosky 152 scope + D-ERF
Replies: 1
Views: 146

Re: Ha Quark Daystar + Tecnosky 152 scope + D-ERF

I may be interested in the case this Quark has good uniformity when centered at Ha core and is narrow enough for good contrast.

Send me PM.


Valery
by Valery
Fri Jun 07, 2019 10:53 am
Forum: This is SolarChat !!
Topic: Thursday Morning Sunshine 6th June
Replies: 8
Views: 138

Re: Thursday Morning Sunshine 6th June

Excellent morning session, Mark.
by Valery
Fri Jun 07, 2019 10:43 am
Forum: This is SolarChat !!
Topic: Thursday Evening Sunshine 6th June
Replies: 9
Views: 138

Re: Thursday Evening Sunshine 6th June

Nice FD and fantastic DS close up, Stu!

Hope you will have more sunshine with a good seeing.


Valery
by Valery
Thu Jun 06, 2019 2:32 am
Forum: This is SolarChat !!
Topic: Calcium with 6 "f8 and Ha
Replies: 19
Views: 273

Re: Calcium with 6 "f8 and Ha

Wrong post.
by Valery
Thu Jun 06, 2019 2:31 am
Forum: This is SolarChat !!
Topic: Calcium with 6 "f8 and Ha
Replies: 19
Views: 273

Re: Calcium with 6 "f8 and Ha

Welcome back Jozef!

Very nice captures in both H-a and CaK.

CaK has unusual appearance - very 3-D like granulation. I often seen such a granulation when watching moments of best seeing for recording CaK movies.

Valery
by Valery
Wed Jun 05, 2019 3:08 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: LS50c on a Tak?
Replies: 9
Views: 202

Re: LS50c on a Tak?

As as I know, the LS50c red etalon was intendent for double staking. So, it may require more tilt to come to Ha core and so, may produce banding.

Valery
by Valery
Wed Jun 05, 2019 11:01 am
Forum: This is SolarChat !!
Topic: Sun 2019 6 4
Replies: 10
Views: 175

Re: Sun 2019 6 4

Montana wrote:
Wed Jun 05, 2019 9:13 am
Wow! I can feel the heat from here! up close and personal :bow :hamster:

Alexandra
Hah! I even thought to fry eggs!
by Valery
Wed Jun 05, 2019 7:17 am
Forum: This is SolarChat !!
Topic: Update: May 29, cycle 25?
Replies: 11
Views: 270

Re: Update: May 29, cycle 25?

Very interesting!

Thanks.
by Valery
Mon Jun 03, 2019 1:55 am
Forum: This is SolarChat !!
Topic: June 1st images
Replies: 15
Views: 195

Re: June 1st images

Excellent resolution at the edge. Fantastic spiculaes.

I see your etalon was somewhat off-band. Spiculaes better seen when an etalon is somewhat red shifted.

BTW. The seeing often is good just before clounds are rolled on.


Valery
by Valery
Wed May 29, 2019 6:39 am
Forum: This is SolarChat !!
Topic: Solar FD in CaK and plane transit
Replies: 6
Views: 152

Re: Solar FD in CaK and plane transit

Hi Stue,

Excellent images! Thanks for sharing.


Valery
by Valery
Mon May 27, 2019 1:08 pm
Forum: Solar Scope Modifications
Topic: Improving 1 angstrom Stage 1 to .5 angstrom
Replies: 6
Views: 140

Re: Improving 1 angstrom Stage 1 to .5 angstrom

I can encourage you even more, Jack. Typical PST etalon is far not 1A. They mostly close to 0.6A - 0.5A and some of them are even narrover, up to about 0.4A!


Valery
by Valery
Sun May 26, 2019 2:35 pm
Forum: This is SolarChat !!
Topic: AR2741 on 14May (New image 22 May)
Replies: 26
Views: 542

Re: AR2741 on 14May (New image 22 May)

I am still puzzled by how Christian is able to get very clean image with less than 10 frame stacking. Can Christian share shed some light on it? Alfred, I am not Christian, but I can express my guess how he does his excellent images with small number of stacked frames. Christian can obtain near per...
by Valery
Sat May 25, 2019 7:12 pm
Forum: This is SolarChat !!
Topic: For CaK funs. Mini activity at High Res 280mm aperture.
Replies: 7
Views: 201

For CaK funs. Mini activity at High Res 280mm aperture.

Hi solar imagers On a totally blank sun face the CaK and CaH offer more to see, especially at a high resolution. Here is a recent image of the sun (near the center of the disk) I took in CaK line at a high resolution. The angular resoluton at CaK line 393nm is 1.67x higher than at H-a 656nm. So, my ...
by Valery
Sat May 25, 2019 12:55 pm
Forum: This is SolarChat !!
Topic: Pro 2019.5.23
Replies: 9
Views: 198

Re: Pro 2019.5.23

Very nicely done! And the coloration is perfect.

Thanks for sharing.


Valery
by Valery
Fri May 24, 2019 3:32 pm
Forum: This is SolarChat !!
Topic: Newly arrived 295mm D-ERF
Replies: 17
Views: 1151

Re: Newly arrived 295mm D-ERF

Dear Valery, Agree that morning seeing is best before the Sun heats up. My 295mm DERF filter in about 2 years' time has picked up some dusts on the outer surface. Do you have any recommendations to clean off the dusts in addition to using air blower ? Suggestions from others are also welcome. Raymo...
by Valery
Mon May 20, 2019 4:42 pm
Forum: This is SolarChat !!
Topic: AR12741 Inside it's umbra in Ha
Replies: 6
Views: 209

Re: AR12741 Inside it's umbra in Ha

Montana wrote:
Mon May 20, 2019 9:07 am
Beautiful processing Valery, I never like to see the umbra presented as a black hole

:bow
Alexandra
Thank Alexandra,

Yes, me too. I always inteersted in what an umbra consist in it's guts.


Valery
by Valery
Mon May 20, 2019 4:39 pm
Forum: This is SolarChat !!
Topic: Newly arrived 295mm D-ERF
Replies: 17
Views: 1151

Re: Newly arrived 295mm D-ERF

Hello Raymond, Large aperture telescopes need good seeing to realize their advantages in resolution. The common rule is that good seeing much more often can be met early morning, not at hot day time. So, better if you have eastern horizon open for your telescope. Hope this helps and I wish you more ...
by Valery
Mon May 20, 2019 4:27 pm
Forum: This is SolarChat !!
Topic: AR2741 on 14May (New image 22 May)
Replies: 26
Views: 542

Re: AR2741 on 14May

I am still working on improving my post processing technique :) Alfred Alfred, If you do use the same Basler 1920-155 camera as I do, and the same FireCapture software, then always use gamma settings from 180 to 200 when imaging the surface details and 145 to 160 gamma when imaging near limb with i...