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Hi everyone, not sure if this is the correct forum for this thread but thought it was close enough to topic 🙂
In prep for my Pulsar Obsy build a couple of months from now I’m looking to get ahead of software requirements for the dome. Can anybody provide advice on a decent ‘Skinny’ software stack for mount and dome control. Observing has been simple for me thus far, only need to worry about mount control. However, I got to thinking about how clumsy and inefficient things would be if goto commands were two separate unrelated actions one for mount control from my chosen planetarium software SkySafari, and then having to reach over and key in the Azimuth setting for dome position. As far as I know there is no dome control interface from SkySafari, so it looks like this will be achieved via an RDP session into my Intel NUC and thence to the dome controller. No big deal I guess this will just join my Atik Horizon control Software. What is my best solution for joint mount and dome control?
Wondering what a realistic load capy. is for a Vixen APZ. My biggest scope is an ST120 refractor that weighs about 5.5 kg with 8x50 finder and eyepiece. I'm thinking of upgrading to a Crayford focuser which I believe will add another half kilo or so.
I currently have a Twilight 1 which seems maxed out with the 120 and a SkyWatcher AZ5 which handles it a bit better, but it's also close to max load, I think.
I have a Manfrotto 475B and a stock TW1 tripod. I'd prefer not to use a counterweight, but if it's a necessity, so be it.
Hey guys, hoping to launch my Observatory build this year (2.7m Pulsar), and looking for some advice on electrical requirements. Apologies for the brain dump, but when I started typing this up, I just seemed to keep coming up with other questions:-)
My observatory site will require a 20m cable run from the house, which I am hoping will be as a spur off existing circuitry, although still to get my tame electrician to give me the low-down on the best solution.
Normal approach is to run a sub-surface conduit for both data and electricity supply, however it occurred to me that an alternative approach might be to have above surface conduits running from a supply point at the house to a receiving point at the observatory, somewhat along the lines of caravan hookups at camping sites. Would be interested to hear from folks on this approach, especially if anyone has gone down this route.
Assuming we go down the sub-surface route:
1/. What would be an appropriate depth to lay the power and data conduits?
2/. Has anybody had data quality issues when running Ethernet in close proximity to a power conduit? Data medium will be over CAT6, so I’m hoping that the more stringent specifications will be sufficient to remove this as a possible problem. I’m aware of general protocols, which advise against laying data cables parallel to power cables for extended lengths. In the event that this is still an issue what approaches have people taken to providing similar data solutions for their own observatories?
3/. I’m also interested in future proofing the obsy with regards to power sockets. Straight up, the following supply requirements spring to mind:
— Dew control (transformed to 12V DC). Possible I may continue to use my existing batteries for this purpose. How have you guys tackled this?
So I’m thinking 4 double sockets should cater for these and provide me with sufficient expansion for unforeseen circumstance. Is this sufficient? Am I missing something?
What is the maximum advisable current draw? Intention is to have all supplies run through a fuse box local to the observatory and of course all plugs will utilise standard domestic fuses as well.
With regards to lighting what solutions have you guys gone with? I was thinking about just using a single standard red outdoor light, but it occurred to me that shadows might be an issue and so got to thinking about a surround lighting approach, perhaps using something similar to this:
On the possibility of an entirely WIFI based approach to data. Is this realistic? This would likely require booster units for the existing house WIFI, however I’m thinking that even then, data transfer rates for imaging might be an issue if I graduate to remote operation.
After a long break, I'm getting back into Astrophotography and finding that I'm missing my old Vixen GPDX mount.
I'm quite interested to hear if anyone has anything similar for sale. I'd prefer a mount with GOTO but I'd definitely consider something with drives and a guide port.
Thanks for looking.
Someone a while back, most likely on a different site, was asking about the current draw of their mount so that they could factor it in.
Anyway, I decided to measure mine out of pure curiosity so here's my readings in case they are of any use whatsoever to anyone else...
CGEM DX + StarSense HC + StarSense Camera + Celestron GPS
(Measured using a regulated 12v supply and multi-meter)
Normal RA tracking: 470ma max (5.56W)
Full speed RA+DEC slew: 1550ma max (18.6W)
I suspect there is also a momentary surge as the motors start as the power supply needed to be set to give up to 3A otherwise it cut the voltage on a full speed slew and the motor controller objected (although the hand controller was fine as it regulates down to 5v or so anyway I suspect). This wasn't picked up by the meter so it wasn't sustained.