Mount Setup

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Graeme1858
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Mount Setup

#1

Post by Graeme1858 »

When I set up last night, I noticed the mount pointed the telescope about 15° away from the first alignment star. I messed about checking the clock, the daylight savings settings and even the location. It went on to align and polar align ok after slewing into position. Then it just occurred to me after seeing the US daylight saving time notice on the portal here that maybe my CGX thinks in US time. The clocks in the UK went back last week.

Has anyone else, non US I suppose, had this problem? If my suspicion is correct, the problem will go away after the US clocks go back.

It would be good if we stuck to GMT (+ or -) all year!

Regards

Graeme
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Re: Mount Setup

#2

Post by Lowjiber »

Graeme1858 wrote: Wed Oct 28, 2020 7:32 am It would be good if we stuck to GMT (+ or -) all year!
:lol: I agree. However, 99% of the people that I know US have zero-idea what GMT is... Let alone the + or -.
John (Urban Astronomer) Apertura AD10 Dob; XLT 150 Dob; XLT 120EQ; Lunt Solar 60 PT/B1200; ES AR102; SW Pro 100ED; 2 SW Pro 80ED's; 90mm Eq; WO Z-61; SW 90mm Virtuso Mak; 2 Orion ST-80's; Quark-C; Cams: Polemaster, ASI120MM-S, ASI174MM & ASI174MM-C
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Greenman
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Re: Mount Setup

#3

Post by Greenman »

Ah, I have been controlling through CPWI, but my AVX was out last time I used it. I wonder if the handset is truly overridden?

On the AVX menu I get down to daylight saving, but pressing enter doesn't do anything, it just drops you back to the menu with the time unchanged?
Cheers,

Tony.

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AP SCT: Celestron NexStar 6SE; Orion RACI 9x500 illuminated finder; Antares 0.63 reducer; Antares 2" Dielectic diagonal.

AP Refractor: Altair Starwave 80ED F7; 1x PlanoStar Flattener; Altair Starwave 0.8 FF/FR; Antares Versascope 60mm finder.

Celestron AVX Mount; Celestron SE6 Mount; Sky portal 2 WiFi; ZWO ASI 533 Pro TEC; ZWO ASI224MC; SvBony 305; Canon EOS 100 (Unmoded).X-cel LX eyepieces & Barlows 2x 3x, Celestron 8-24mm Zoom, ZWO 2” Filter holder.

Filters: Astronomik IR cut; Baader Semi Apo; Baader Fringe Killer; Optolong Pro CLS 1.25; SvBony CLS 2.0.

Binoculars: Celestron 15 x 70.

Latitude: 52.219853
Longitude: -1.034471
Accuracy: 5 m
Bortle 4 site. https://maps.google.com/?q=52.21985,-1.03447

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Re: Mount Setup

#4

Post by Graeme1858 »

Greenman wrote: Wed Oct 28, 2020 11:47 am Ah, I have been controlling through CPWI, but my AVX was out last time I used it. I wonder if the handset is truly overridden?

On the AVX menu I get down to daylight saving, but pressing enter doesn't do anything, it just drops you back to the menu with the time unchanged?

Yes, my CGX is the same. Through CPWI, no problem, pc clock is used and alignment is ok. For visual with the hand controller, daylight saving or not is a choice of two options from the up and down. The clock remains the same.

Regards

Graeme
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Celestron 9.25 f10 SCT, CGX mount.
ZWO ASI294MC Pro, Canon 600D, Altair GPCAM2 290C.
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Miranda 10x50 Binoculars.
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Re: Mount Setup

#5

Post by Graeme1858 »

Lowjiber wrote: Wed Oct 28, 2020 11:41 am
Graeme1858 wrote: Wed Oct 28, 2020 7:32 am It would be good if we stuck to GMT (+ or -) all year!
:lol: I agree. However, 99% of the people that I know US have zero-idea what GMT is... Let alone the + or -.

Sorry, a bit old school that. Does UT + or - work for your young friends? :)

Regards

Graeme
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Click Here for the AP Processing Challenge!
______________________________________________
Celestron 9.25 f10 SCT, CGX mount.
ZWO ASI294MC Pro, Canon 600D, Altair GPCAM2 290C.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
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Re: Mount Setup

#6

Post by Greenman »

Graeme1858 wrote: Wed Oct 28, 2020 12:24 pm
Lowjiber wrote: Wed Oct 28, 2020 11:41 am
Graeme1858 wrote: Wed Oct 28, 2020 7:32 am It would be good if we stuck to GMT (+ or -) all year!
:lol: I agree. However, 99% of the people that I know US have zero-idea what GMT is... Let alone the + or -.

Sorry, a but old school that. Does UT + or - work for your young friends? :)

Regards

Graeme
GMT is time 0, genuinely we are the Time Lords. Before Greenwich, there was no time. :lol:
Cheers,

Tony.

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AP SCT: Celestron NexStar 6SE; Orion RACI 9x500 illuminated finder; Antares 0.63 reducer; Antares 2" Dielectic diagonal.

AP Refractor: Altair Starwave 80ED F7; 1x PlanoStar Flattener; Altair Starwave 0.8 FF/FR; Antares Versascope 60mm finder.

Celestron AVX Mount; Celestron SE6 Mount; Sky portal 2 WiFi; ZWO ASI 533 Pro TEC; ZWO ASI224MC; SvBony 305; Canon EOS 100 (Unmoded).X-cel LX eyepieces & Barlows 2x 3x, Celestron 8-24mm Zoom, ZWO 2” Filter holder.

Filters: Astronomik IR cut; Baader Semi Apo; Baader Fringe Killer; Optolong Pro CLS 1.25; SvBony CLS 2.0.

Binoculars: Celestron 15 x 70.

Latitude: 52.219853
Longitude: -1.034471
Accuracy: 5 m
Bortle 4 site. https://maps.google.com/?q=52.21985,-1.03447

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Re: Mount Setup

#7

Post by Greenman »

Graeme1858 wrote: Wed Oct 28, 2020 12:22 pm
Greenman wrote: Wed Oct 28, 2020 11:47 am Ah, I have been controlling through CPWI, but my AVX was out last time I used it. I wonder if the handset is truly overridden?

On the AVX menu I get down to daylight saving, but pressing enter doesn't do anything, it just drops you back to the menu with the time unchanged?

Yes, my CGX is the same. Through CPWI, no problem, pc clock is used and alignment is ok. For visual with the hand controller, daylight saving or not is a choice of two options from the up and down. The clock remains the same.

Regards

Graeme
Well, you can't criticise Celestron too much, at least they have consistentcy over the range :?
Cheers,

Tony.

Image

AP SCT: Celestron NexStar 6SE; Orion RACI 9x500 illuminated finder; Antares 0.63 reducer; Antares 2" Dielectic diagonal.

AP Refractor: Altair Starwave 80ED F7; 1x PlanoStar Flattener; Altair Starwave 0.8 FF/FR; Antares Versascope 60mm finder.

Celestron AVX Mount; Celestron SE6 Mount; Sky portal 2 WiFi; ZWO ASI 533 Pro TEC; ZWO ASI224MC; SvBony 305; Canon EOS 100 (Unmoded).X-cel LX eyepieces & Barlows 2x 3x, Celestron 8-24mm Zoom, ZWO 2” Filter holder.

Filters: Astronomik IR cut; Baader Semi Apo; Baader Fringe Killer; Optolong Pro CLS 1.25; SvBony CLS 2.0.

Binoculars: Celestron 15 x 70.

Latitude: 52.219853
Longitude: -1.034471
Accuracy: 5 m
Bortle 4 site. https://maps.google.com/?q=52.21985,-1.03447

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Re: Mount Setup

#8

Post by JayTee »

Greenman wrote: Wed Oct 28, 2020 1:35 pm GMT is time 0, genuinely we are the Time Lords. Before Greenwich, there was no time. :lol:
Not exactly true.

Throughout early Maritime map making history many prime meridians have been used. Paris was used, Beijing was used, and many other prime meridians based on that country's capital were also used.

It wasn't until 1884 when American president Chester A Arthur called for an international convention that finally agreed that Greenwich should be the only prime meridian for navigation. That international convention decided that Greenwich is the prime meridian. Most likely because Britain was the maritime superpower at the time.

Cheers,
JT
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Re: Mount Setup

#9

Post by bobharmony »

Lowjiber wrote: Wed Oct 28, 2020 11:41 am
Graeme1858 wrote: Wed Oct 28, 2020 7:32 am It would be good if we stuck to GMT (+ or -) all year!
:lol: I agree. However, 99% of the people that I know US have zero-idea what GMT is... Let alone the + or -.
Back in my days as a working stiff we ran all our network devices on Zulu time to make all the nationwide device logs be in sync all year long. Zulu time has the advantage of ignoring DST, staying on GMT Standard time all year round. It was amazing how much trouble newbies had figuring out how to deal with it :)

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Hardware: Celestron C6-N w/ Advanced GTmount, Baader MK iii CC, Orion ST-80, Canon 60D (unmodded), Nikon D5300 (modded), Orion SSAG
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Re: Mount Setup

#10

Post by KathyNS »

Graeme1858 wrote: Wed Oct 28, 2020 7:32 am It would be good if we stuck to GMT (+ or -) all year!
I know quite a few people who do exactly that. Tell your mount that your time zone is UTC+0, DST=No. Then use UTC for the date/time input, and you are good to go. Remember to have your lat/long set correctly to your location, so it can compute just how far you are from the centre of "your time zone".


JayTee wrote: Thu Oct 29, 2020 8:52 am That international convention decided that Greenwich is the prime meridian. Most likely because Britain was the maritime superpower at the time.
...And because using Greenwich as the Prime Meridian conveniently parks the International Date Line in the middle of the Pacific Ocean, where it causes minimal inconvenience.

Isaac Asimov wrote a short story about the problems the date line would cause if it were on dry land. It is set on a colonized Mars, and there is a city that straddles the date line. It causes problems for a thief who forgot about it and assumed his target would be vacant because it was a holiday. Except it wasn't.
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Re: Mount Setup

#11

Post by Lowjiber »

Graeme1858 wrote: Wed Oct 28, 2020 12:24 pm Sorry, a bit old school that. Does UT + or - work for your young friends?
Only one... My next-door neighbor is an environmental biologist. The rest probably think UT is what time it is in the universe.:lol:

In my little office the clock on the wall runs when it wants too. Rather than replace the clock, I put a sign beside it that says, "Notice! Time is what this stupid clock says (Sometimes)."
John (Urban Astronomer) Apertura AD10 Dob; XLT 150 Dob; XLT 120EQ; Lunt Solar 60 PT/B1200; ES AR102; SW Pro 100ED; 2 SW Pro 80ED's; 90mm Eq; WO Z-61; SW 90mm Virtuso Mak; 2 Orion ST-80's; Quark-C; Cams: Polemaster, ASI120MM-S, ASI174MM & ASI174MM-C
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Re: Mount Setup

#12

Post by Graeme1858 »

KathyNS wrote: Thu Oct 29, 2020 11:57 am I know quite a few people who do exactly that. Tell your mount that your time zone is UTC+0, DST=No. Then use UTC for the date/time input, and you are good to go. Remember to have your lat/long set correctly to your location, so it can compute just how far you are from the centre of "your time zone".

Good shout! That sounds like the way forward.

Thanks

Regards

Graeme
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Celestron 9.25 f10 SCT, CGX mount.
ZWO ASI294MC Pro, Canon 600D, Altair GPCAM2 290C.
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Miranda 10x50 Binoculars.
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Re: Mount Setup

#13

Post by bobharmony »

For my mount, I configured it to Eastern time and set it to a 24 hour clock. I did the same thing with my PC, so all I do at startup is display the time on the PC, and set the hand controller to the same time. The only thing I have to remember on the HC is whether I am in DST or not. So far, so good.

I'd chuck it all and go to UT on both devices, but that would make my better half cranky, and there is no fixing that.

Bob

Bob
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Re: Mount Setup

#14

Post by Graeme1858 »

Some great suggestions here but from Sunday I'll be on GMT for 6 months as will all of my clocks!

Come next Summer, the telescope will stay that way!

Regards

Graeme
______________________________________________
Click Here for the AP Processing Challenge!
______________________________________________
Celestron 9.25 f10 SCT, CGX mount.
ZWO ASI294MC Pro, Canon 600D, Altair GPCAM2 290C.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
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Re: Mount Setup

#15

Post by turboscrew »

Lowjiber wrote: Thu Oct 29, 2020 11:59 am
Graeme1858 wrote: Wed Oct 28, 2020 12:24 pm Sorry, a bit old school that. Does UT + or - work for your young friends?
Only one... My next-door neighbor is an environmental biologist. The rest probably think UT is what time it is in the universe.:lol:

In my little office the clock on the wall runs when it wants too. Rather than replace the clock, I put a sign beside it that says, "Notice! Time is what this stupid clock says (Sometimes)."
Well, even a stopped 12 hour clock shows the right time twice a day. ;-)
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Re: Mount Setup

#16

Post by turboscrew »

Graeme1858 wrote: Thu Oct 29, 2020 4:25 pm Some great suggestions here but from Sunday I'll be on GMT for 6 months as will all of my clocks!

Come next Summer, the telescope will stay that way!

Regards

Graeme
I wonder if a second cheapish clock that is always running GMT time would be a good idea?
I've always been against the DST. Changing the clocks is stupid as well as the change of the day-rhythm. Also, the winter time is closer to solar time.
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