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Pointing Mount To Zenith To Take Flats

Jim Waters #69443 Edited I should know how to do this, but....? At the end of an imaging session I need to tell NINA to move the RA and DEC to the zenith.? I will then place the flat panel on the OTA and take the necessary flats.? What’s the best way to tell the Gemini-2 to move to DEC zenith and the necessary RA?? I would think DEC would be 90 degrees but what about the RA?? NINA has a slew to Alt/Az command.? Thx
Brian Valente Member Profile All Messages By This Member #69444 can you do hour angle? just enter HA = 0 toggle quoted message Show quoted text On Wed, Dec 23, 2020 at 6:50 PM Jim Waters <jimwaters@...> wrote: [Edited Message Follows] I should know how to do this, but....? At the end of an imaging session I need to tell NINA to move the RA and DEC to the zenith.? I will then place the flat panel on the OTA and take the necessary flats.? What’s the best way to tell the Gemini-2 to move to DEC zenith and the necessary RA?? I would think DEC would be 90 degrees but what about the RA?? NINA has a slew to Alt/Az command.? Thx -- Brian? Brian Valente portfolio
Brian Valente Member Profile All Messages By This Member #69445 Another possibility is setting a home position at zenith, but the problem is NINA probably doesn't know about multiple park positions. i wonder if there's an ability to script it? toggle quoted message Show quoted text On Wed, Dec 23, 2020 at 6:50 PM Jim Waters <jimwaters@...> wrote: [Edited Message Follows] I should know how to do this, but....? At the end of an imaging session I need to tell NINA to move the RA and DEC to the zenith.? I will then place the flat panel on the OTA and take the necessary flats.? What’s the best way to tell the Gemini-2 to move to DEC zenith and the necessary RA?? I would think DEC would be 90 degrees but what about the RA?? NINA has a slew to Alt/Az command.? Thx -- Brian? Brian Valente portfolio
Jim Waters #69446 NINA doesn't understand the Gemini-2 Home command.? I will try hour angle 0 this weekend. Have a good holiday Brian.
Brian Valente Member Profile All Messages By This Member #69447 Yeah I expect Nino will know about Park command and you can set Gemini to Park at home but that means All your parks will go to that position. Any rate have a good one Jim toggle quoted message Show quoted text On Wed, Dec 23, 2020 at 8:18 PM Jim Waters <jimwaters@...> wrote: NINA doesn't understand the Gemini-2 Home command.? I will try hour angle 0 this weekend. Have a good holiday Brian. -- Brian? Brian Valente portfolio
Les Niles All Messages By This Member #69449 开云体育 BTW, the zenith will be Dec = latitude.? ??-Les toggle quoted message Show quoted text On Dec 23, 2020, at 6:51 PM, Jim Waters <jimwaters@...> wrote: ? [Edited Message Follows] I should know how to do this, but....? At the end of an imaging session I need to tell NINA to move the RA and DEC to the zenith.? I will then place the flat panel on the OTA and take the necessary flats.? What’s the best way to tell the Gemini-2 to move to DEC zenith and the necessary RA?? I would think DEC would be 90 degrees but what about the RA?? NINA has a slew to Alt/Az command.? Thx
John Kmetz All Messages By This Member #69450 Jim, Sequence Generator Pro is what I use, but I have tried NINA briefly. When I go to do flats and place my light panel over the objective I just use Park at Zenith from the Hand Controller or from the virtual HC. But you don't have this? You don't have to control from NINA. Are we missing something here :>). Best Regards, John
Brian Valente Member Profile All Messages By This Member #69451 >>> When I go to do flats and place my light panel over the objective I just use Park at Zenith from the Hand Controller? This is the approach i use as well, although I have Home set as a custom park position. my flat panel is on a stand nearby, so i just slew the scope to point at that and then set Home there On another scope I have a flat man attached to the front, which automatically swings down and sets the proper light level when SGP sees i'm taking flats. very handy!? toggle quoted message Show quoted text On Wed, Dec 23, 2020 at 9:44 PM John Kmetz <jjkmetz54@...> wrote: Jim, Sequence Generator Pro is what I use, but I have tried NINA briefly. When I go to do flats and place my light panel over the objective I just use Park at Zenith from the Hand Controller or from the virtual HC. But you don't have this? You don't have to control from NINA. Are we missing something here :>). Best Regards, John -- Brian? Brian Valente portfolio
Jim Waters #69452 I am using the next-gen Sequencer and have an automated script.? When my targets are done for the night I want to park the OTA at the zenith so I can manually take flats.
John Kmetz All Messages By This Member #69456 Jim, Perhaps the NINA Discord forum might give you the solution you are seeking. Best Regards, John
Edward Beshore #69457 Hi Jim The Dec should be your latitude and the RA should be the current sidereal time, which is the current RA of the meridian. Do you have that available to you? Its a pretty simple calculation if not given your geographic coordinates and UT.

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