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Thread: GMT Offsets

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  1. #1
    Join Date
    Nov 2005
    Location
    Virgil, NY
    Posts
    5,724

    Default GMT Offsets

    Hi Bob,

    Tell me, please, how Planner interacts with ACP and with theSky or Starry Night Pro with respect to the GMT offset set up in each. Particularly, does Planner override if the others are set to different GMT offsets?

    If I'm making plans sitting here in Washington DC, to run on a telescope at, say, New Mexico Skies, using SNP to select objects, what GMT offsets have to be set into which programs? In particular, does it matter if SNP/theSky has the observatory's time zone, or is set to the correct observatory latitude/longitude?
    Dick
    www.VirgilObservatory.us
    Pier-mounted Meade 12-inch SCT "classic"
    Optec TCF-S focuser
    SBIG CFW-8A and ST7-XMEv
    H-alpha, BVRI, RGB & Clear filters
    FOV ~15 x 10



  2. #2
    Join Date
    Oct 2005
    Location
    Mesa, AZ
    Posts
    31,425

    Default

    The planetarium needs to be set to the observatory's site, both location and time. Then, in Planner's preferences, set the UTC offset for the observatory. The result will be local times at the observatory.

    Is that what you were looking for? I may have misunderstood....
    -- Bob

  3. #3
    Join Date
    Nov 2005
    Location
    Virgil, NY
    Posts
    5,724

    Default

    Yes, thanks.

    The problem was in SNP (for me) trying to set the time correctly. You have to set the new location as the home location, making sure the GMT offset is correct. Even if you set the GMT correctly, unless you make it the home location, that GMT offset won't otherwise "stick."
    Dick
    www.VirgilObservatory.us
    Pier-mounted Meade 12-inch SCT "classic"
    Optec TCF-S focuser
    SBIG CFW-8A and ST7-XMEv
    H-alpha, BVRI, RGB & Clear filters
    FOV ~15 x 10



  4. #4
    Join Date
    Oct 2005
    Location
    Mesa, AZ
    Posts
    31,425

    Default

    Ah ha... OK. I've been confused by that too.
    -- Bob

 

 

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