Hellriegel replied to the topic 'Re: Meridian in KStars - incorrectly positioned' in the forum. 2 months ago

Thank You, Eric, for clarifying.
And yes, sometimes user don't behave as expected ;) - I ought to know after having developed user applications for some years long ago.
CS
Michael

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Hellriegel replied to the topic 'Re:Meridian in KStars - incorrectly positioned' in the forum. 2 months ago

Hi Eric,
thanks for replying that fast.
.

How do you observe that the hour angle is offset?

My mount is parked at the meridian at DEC 0° and synchronized with KStars at that position. Comparing the actual sky with the sky map of KStars already showes the offset.
.

Is your real location really matching the geographic location setting in KStars ?

Well, at first look: yes it did. My location is 8° 30' east of Greenwich which I entered as -08 30 in the KStars location settings (as used to from other software).
Considering Your second question it struck me that if the minus sign was ignored the result would be the sky view shifted in KStars by about 17° which would result in an correct view.
Playing around with the longitude value in the locations settings I finally recognized that positions east of Greenwich are not indicated by a minus sign - that's all. Problem solved - Just another user error.
.
It might be a good idea to supplement the longitude tooltip with something like "Locations west of Greenwich must be prefixed with a minus sign"

CS Michael

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Hellriegel created a new topic ' Meridian in KStars - incorrectly positioned' in the forum. 2 months ago

I came back to KStars/Ekos/INDI just a couple of weeks ago.

Present Problem:
The KStars star map is 1h (15°) late with respect to the meridian. I.E. the hour angle of every object on the star map is off by -1 h.
I checked the system time/date information using the timedatectl command that gave correct values:
=> timedatectl

  • Local time: So 2018-09-30 16:05:01 CEST
  • Universal time: So 2018-09-30 14:05:01 UTC
  • RTC time: So 2018-09-30 14:05:01
  • Time zone: Europe/Berlin (CEST, +0200)
  • System clock synchronized: yes
  • systemd-timesyncd.service active: yes
  • RTC in local TZ: no
Local time as shown in the upper left corner of KStars is identical to the above local time from timedatectl.
The geographic location settings in KStars are
  • UT offset: 1 (which is correct ignoring the Daylight Saving Time DST
  • DST rule: EU (European union - which is correct as well)
There is no GPS device involved and the INDI tab in KStars settings has "KStars updates all devices" marked.
My mount controller (Astro-Electronic FS-2) does not communicate date/time to KStars

So, where is the cause of my problem?
I would be glad if anyone had any suggestion for me ;-)

CS
Michael

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Hellriegel replied to the topic 'Can anyone share Pictures of a RasPi astro setup' in the forum. 11 months ago

rlancaste,
thank You for the pictures of Your highly sophisticated setup, especially the compact "OTA module" as I would like to call it. This is almost exactly what we have been discussing at our last "Astro Stammtisch" just 2 weeks ago! (Annotation: The German word "Stammtisch" usually describes a get-together of (exclusively male) participants gossiping about high level politics with mainly low level contributions having at least one beer to many. However, in our case it is more of a meeting of astro nerds in high spirits with more ideas than digestible within a live time.)

We are still debating about some kind of a compact unified power distribution for a mobile setup including 19V (Laptop), 12V, and 5V rails (maybe worth a new topic).

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Hellriegel replied to the topic 'Can anyone share Pictures of a RasPi astro setup' in the forum. 11 months ago

@ petarm and @turki_alamri,
Thanks for Your immediate replies and pictures.
I included these in an ad hoc joint presentation about the RasPi aimed at an audience that was not familiar with the differences between the RasPi and an Arduino.
I myself took Your pictures as a suggestion for a better and neat cable placement. (Don't dare to show my cable chaos at my stationary mount.) ;-)

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Hellriegel replied to the topic 'What does Ekos mean?' in the forum. 11 months ago

pauledd, thanks for giving a hint towards the greek origin (oikos = home/house).
House it could be such as including a comfortable habitat for all our astro equipment. ;-)
Maybe Jasem had exactly this in mind ;-)

@ Jasem,
the presentation will not be held before March but when ready and translated (from German to English) I shall send it to You for further usage.

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Hellriegel created a new topic ' Can anyone share Pictures of a RasPi astro setup' in the forum. 11 months ago

Still in the process of preparing same presentations on KStars, Ekos and INDI I am in need of some pictures of a mobile setup including RasPi or StellarMate, telescope with mount, focuser, etc.
Since until now I only work with a stationary setup in my roll off roof observatory including two PC, two monitors and remote access via ethernet this is not exactly representative for a RasPi based mobile setup.:whistle:

So, can anyone share some pictures of a mobile setup and allow me to present them first to small astro nerds audience - of course citing the copyright owner.
However, since Jasem asked me to share the presentation once it is translated to English these picture would become public as well.

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Hellriegel replied to the topic 'What does Ekos mean?' in the forum. 11 months ago

Well, Jasem,
I could not retrace the name Ekos in Greek mythology (there are Eris, Eros, Echo, but none of these seem to hint to what You created with Ekos. ;-)
So I think we will have to some redefine it as some abbreviation for . . .
- well, here You all come in!
Any suggestions? Of course Jasem should approve before it get "official". ;-)

As to the presentation - it will be in German first. But if it proves to do the job I shall try and translate it to English.

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Hellriegel created a new topic ' What does Ekos mean?' in the forum. 11 months ago

I am presently preparing a presentation about KStars, Ekos and INDI (missionary act towards MS windows users ;-) )

Obviously KStars translates to KDE Star-something, INDI spells Instrument Neutral Distributed Interface, but what does Ekos abbreviate?
And who coined the term?

Can anybody tell me?

CS
Michael

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Hellriegel thanked Jasem Mutlaq in topic Re:Local Meridian 12 months ago

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