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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

Merry Christmas, Happy New Year and looking forward to a great solar cycle 25!

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 531 matches

by PDB
Wed Jan 15, 2020 8:31 am
Forum: Solar Software
Topic: Genika?
Replies: 3
Views: 89

Re: Genika?

And about the licence: it is camera dependent (cam serial numbers) not computer. So should move to new computer without problems if you also copy the license file (genie.bin) and keep using the same cameras.

Paul
by PDB
Wed Jan 15, 2020 8:27 am
Forum: Solar Software
Topic: Genika?
Replies: 3
Views: 89

Re: Genika?

Hi Alexandra,

have exchanged e-mails with Frederic in November about the time sync feature. And there have been updates around that time (current version 2.13.5.8)

Regards,

Paul
by PDB
Fri Jan 10, 2020 7:06 pm
Forum: Forum Support Issues
Topic: Very slow
Replies: 18
Views: 288

Re: Very slow

Rainer,

you might be correct. The image is on flickr and it is huge, (don't know if it is cached on the bbs server) but i get frequent relay-server timeouts. So there is something not good.

Paul
by PDB
Fri Jan 10, 2020 10:26 am
Forum: Forum Support Issues
Topic: Very slow
Replies: 18
Views: 288

Re: Very slow

Is it just you and me that reads this section
No, not only you ;)

Terribly slow lately. Takes me 10 minutes open and answer this ....

Regards,

Paul
by PDB
Thu Dec 19, 2019 7:40 pm
Forum: This is SolarChat !!
Topic: Cycle 25 first spot has formed.
Replies: 7
Views: 206

Re: Cycle 25 first spot has formed.

I noticed it on sdo (WL) yesterday evening, and it showed a small spot. This morning on SDO the spot was still there but already smaller. Got mu scope out, and by the time the Sun was in range of the scope (around 11:UT) the spot already gone. The AR was still brighter.

Paul
by PDB
Fri Dec 13, 2019 2:40 pm
Forum: Solar Software
Topic: Autostakkert How Paint Alignment Points
Replies: 6
Views: 207

Re: Autostakkert How Paint Alignment Points

Hi, thanks. Exactly what I thought. He is clicking in rapid succession while dragging the mouse over the limb. Good finger exercise :D You can even hear the clicks is you listen very carefully to the sound. So no magic :( For proms what I usually did was place a few (not to many) on areas of the pro...
by PDB
Fri Dec 13, 2019 8:03 am
Forum: Solar Software
Topic: Autostakkert How Paint Alignment Points
Replies: 6
Views: 207

Re: Autostakkert How Paint Alignment Points

Hi,

Mystery to me too. The only way I could think of is continous clicking while moving the mouse. Can you share an address of such a youtube video?

Paul
by PDB
Wed Dec 11, 2019 7:37 pm
Forum: Solar Software
Topic: LuSol Guiding software
Replies: 9
Views: 378

Re: LuSol Guiding software

Martin, if the Sun is moving in the LuSol guider window, then you probably need to adjust LuSol settings (Agressivity or min move). If the Sun drifts in the main scope and not in the guider then it is probably differentiel drift (or flexure in the guide scope). That happens to me me when guiding wit...
by PDB
Thu Dec 05, 2019 8:54 pm
Forum: Solar Software
Topic: LuSol Guiding software
Replies: 9
Views: 378

Re: LuSol Guiding software

Martin, I have the AZ_EQ5, that one is equipped with an USB port (with built-in FTDI chip) so I use a standard USB cable. (Type A -> B) An EQDIR cable connected to the port on the mount (where I suppose you now connect the WIFI) should also work. (But you need an EQDIR cable, a normal serial cable a...
by PDB
Tue Dec 03, 2019 1:03 pm
Forum: Solar Software
Topic: LuSol Guiding software
Replies: 9
Views: 378

Re: LuSol Guiding software

Martin, I was able to do some real test today. Connected Lusol to the synscan app and the zwo cam, did calibration and then did guided and unguided test. (had to change the track rate to Lunar instead of Solar to force guiding errors more quickly). Lusol and Synscan app seemed to work just fine, and...
by PDB
Tue Dec 03, 2019 7:36 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: How bring ASI174MM in focus with PST solar telescope
Replies: 5
Views: 349

Re: How bring ASI174MM in focus with PST solar telescope

Yes, that is the one but as you can see on this image the protective window is in the back parts that you need to unscrew to place the part. (other cams have that over the sensor) So you need an extra filter at least for dust protection.
Capture.JPG
Capture.JPG (27.04 KiB) Viewed 314 times

Paul
by PDB
Tue Dec 03, 2019 7:23 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: How bring ASI174MM in focus with PST solar telescope
Replies: 5
Views: 349

Re: How bring ASI174MM in focus with PST solar telescope

Mark,

suppose you mean ZWO's low profile nosepiece. That is prohlematic on an ASI174. (seems then you need to remove the protective window)
ZWO says: "PS: this new cover can not hold the protect window of ASI174MM/MC, so you need an external 1.25″ filter"

Paul
by PDB
Mon Dec 02, 2019 12:31 pm
Forum: Solar Software
Topic: LuSol Guiding software
Replies: 9
Views: 378

Re: LuSol Guiding software

Hello Martin, downloaded the trial version to give it a try, but will have to wait for the weather to improve. So I tested against the synscan app in emulator mode and could see RA & DEC figures change when applying the manual guide corrections. So in theory it should work, but need to connect to a ...
by PDB
Sun Oct 13, 2019 4:39 pm
Forum: This is SolarChat !!
Topic: Citizen Science
Replies: 3
Views: 286

Citizen Science

Lots of talking about the subject earlier this year so here is a chance: https://www.cloudynights.com/topic/6800 ... vember-11/

Paul
by PDB
Tue Sep 24, 2019 8:22 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Alignment procedure for EQ6-R Pro question
Replies: 8
Views: 527

Re: Alignment procedure for EQ6-R Pro question

Hello Franco, Never understood "solar align" for a mount. Isn't that just the same as just slewing to the sun (from the goto planet button) and then align with the control keys. I had to do something to make "Sun" appear as object under the planet button, but can't remember what. (think this was int...
by PDB
Wed Aug 28, 2019 11:52 am
Forum: This is SolarChat !!
Topic: Weekend Sunshine and OaCapture testing for Apple
Replies: 13
Views: 696

Re: Weekend Sunshine and OaCapture testing for Apple

Good job Alexancra. FD's are great. I used oaCapture for a while on unix machines. (but switched to windows again where I got better USB performance) Overall it is a very good capture software considering it seems to be about the only one for an Apple :) and at least I know James so maybe I can get ...
by PDB
Mon Jul 22, 2019 9:39 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Basler FireCapture settings?
Replies: 1
Views: 266

Re: Basler FireCapture settings?

Hi,

don't have a Basler cam myself but there some info on Christian Villadrich's pages : http://www.astrosurf.com/viladrich/astr ... ndree.html

P.
by PDB
Sat Jul 13, 2019 2:01 pm
Forum: This is SolarChat !!
Topic: Quark Users
Replies: 10
Views: 623

Re: Quark Users

You are right Mark. This looks strange. The hatches also look unsharp (like something in the image train), so this seems different from what I have seen with my cam. (Should have looked it bit better at the image. Maybe time for new glasses)

P
by PDB
Sat Jul 13, 2019 9:40 am
Forum: This is SolarChat !!
Topic: Quark Users
Replies: 10
Views: 623

Re: Quark Users

Hi Stu, Sony ICX178 or ICX183 chipped camera? With a 178 I get crosshatches that are visible in the image, depending on the zoom level; (They are there but getting more pronounced on certain zoom levels). This happens in narrow band imaging (small pixels, microlenses ...?) Never had it on the ASI120...
by PDB
Fri Jul 05, 2019 8:02 am
Forum: Solar Scope Modifications
Topic: 10 improvements to my solar telescope set up
Replies: 7
Views: 692

Re: 10 improvements to my solar telescope set up

That's a great video and setup Daniel. Specially liked: - the 90° gearboxes for the motor focus. Never would have come with that idea. - that you can handle 3 cameras in parallel. Your laptop / USB is very good Can you also record in parallel or does that slow framerates? Maybe an 11 th improvement....
by PDB
Fri Jul 05, 2019 7:54 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Basler Camera assistance
Replies: 2
Views: 434

Re: Basler Camera assistance

According to FireCapture website the Pylon SDK needs to be installed. (It's mentioned in the instruction video on FC's site). Don't think that is part of the Pylon Software suite.

Paul
by PDB
Tue Jul 02, 2019 10:33 am
Forum: This is SolarChat !!
Topic: Cycle 25 Bright Points
Replies: 12
Views: 811

Re: Cycle 25 Bright Points

Valery wrote:
Mon Jul 01, 2019 8:30 am
Thanks, Mark for your detailed info.

I still do not see any cycle 25 evidences in my telescope in Ha.

When will we see even pores related to C25?

Valery
Yesterday some evidence but very short visibility

http://spaceweather.com/archive.php?vie ... &year=2019
by PDB
Tue Jul 02, 2019 6:50 am
Forum: This is SolarChat !!
Topic: Flats from near full disk?
Replies: 18
Views: 1042

Re: Flats from near full disk?

The holy grail indeed ... I am surprised it even worked good, except for the solar edges. There is also some limb darkening effect that will "ruin" the flats (but maybe it helps to remove the gradient towards the limb?) Now I would try either one of the following: - Take the flats with the plastic b...
by PDB
Wed Jun 26, 2019 6:46 am
Forum: This is SolarChat !!
Topic: All things nice
Replies: 22
Views: 977

Re: All things nice

Hi Alexandra,

Good captures (and animation). I noticed these as well on Friday and it was indeed spectacular. For a short time these were even visible (very bright) almosts straight up. (Maybe 20 minutes, then only at lower degrees) Had no camera within reach. Pitty

Regards,

Paul
by PDB
Wed Jun 26, 2019 6:46 am
Forum: SPoD Archive
Topic: All things nice
Replies: 10
Views: 665

Re: All things nice

Hi Alexandra,

Good captures (and animation). I noticed these as well on Friday and it was indeed spectacular. For a short time these were even visible (very bright) almosts straight up. (Maybe 20 minutes, then only at lower degrees) Had no camera within reach. Pitty

Regards,

Paul