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I've been trying out astrophotography from home, where 220V socket is available with unlimited power.
I want to be taking my setup to the field next year, but I'm wondering how to power all the devices.
The mount (10micron GM1000) needs 24V@3A (peak 4A). To get 24V@3A I need 12V@6A DSLR that can run from batteries, and I have lots of spare batteries on standby Raspberry Pi to control the devices, 5V@3A, equivalent to 12V@1.25A Dew Heater that I've just got, but never used, needs 12V@1A I'm considering some upgrades in the near future:
An autofocuser, 12V. Power requirements should be minimal. Replace DSLR with a cooled camera, 12V. I don't know what I'll get, but top models need 3A. Don't know how much of it is used by cooling, and how much is used by the sensor. Questions:
Is it safe to power the mount from a DC hub? My mount's manual says "Please don’t use unregulated power supplies because the output voltage of these units is not good enough to operate the mount.". I didn't find anything that says the warranty is void if not using the pre-approved power supplies. If I don't want to power the mount from the DC hub, how can I power the mount and the DC hub from the same battery? I saw these funny devices on Aliexpress but don't know if they are any good: https://www.aliexpress.com/item/32911966417.html What kind of batteries do you use to provide multiple Amperes to all the equipment all night long? Mount needs 6A (at 12V), cooled CMOS camera needs 3A, dew heater needs 1A, Pi needs 1.25A. That's 11.25A at 12V, which is 135W of power. The battery must be huge. I saw discussions of various DC hubs here:
With new mount and upgraded scope features, now looking to venture into imaging.
Before I start, I'm not looking to get feedback on polar alignment, mono guidecam, better imaging cameras, etc; this is more a 'dummies guide' setup discussion! I'm not expecting to get great images at this stage, just more the options available, getting over some issues, so that I can jump outside on a clear night with an ideal, foolproof(!), setup for either imaging or visual as time would permit and what may work best for me. As you may guess from the topic name, I'm a mac user (Macbook Pro) and would rather keep to this if possible (whilst I do have Windows (and Ubuntu) via parallels, I'd rather not use these).
I've got a setup which has worked well for visual, and obviously want to have a couple of 'staple' setups that I can use depending on expectations of night observing or imaging. So far, the best one for me has been the Skywatcher Wifi Synscan controller, which has worked a treat with my Android phone - I use the Synscan app to complete alignment and GOTO stars/planets/DSO etc, or Stellarium_plus after completing alignment. This removes the need for the Synscan Handset and any USB cables to the mount altogether. But I don't know if this will work for guiding.
That then brings me to my issue on mac - connecting USB(A) between Macbook and Handset, I've attempted to control the mount through Stellarium. Trying each of the available connections (/dev/tty.usbsetial-1420, /dev/cu.usbsetial-1420, and just for sake of it, the /dev/tty.Bluetooth-Incoming-Port and /dev/cu.Bluetooth-Incoming-Port) in the dropdown menu under DeviceSettings/SerialPort, I cannot get the mount to connect (well, more like selecting the telescope and clicking the "Start" on the TelescopeControl just results in the spinning icon and I have to Force-Quit Stellarium and start again with the same result each time. Annoyingly (for fellow mac users!), Parallels/Windows/Stellarium connects and controls the mount fine! As the mount is the newer "pro" type, I also have a USB connection directly under the hand-controller RJ45 and AutoGuider ST4 sockets, but using this still results in the same issue. Another issue I have seen is that when I unplug the USB from the computer when connected to the handset, the date on the controller jumps significantly - for example, last night at ~23:30, I was transported through the local wormhole galaxy to Jan 2048 according to Synscan! Obviously unplugging isn't going to happen during a genuine session, but just wondering if this is a possible issue somewhere?!
Any other mac users connecting USB directly to the SW 'Pro' mounts?
Software wise, would folks generally suggest steering away from Stellarium towards KStars or SkySafari(Plus) for controlling the mount?
Can the Wifi dongle be used for controlling mount from computer (any OS) or do I need to go USB either to handset or directly to mount?
Is there an issue in using Mac USB to the telescope compared to 'straight' Windows (i.e. PC/laptop with Windows instead of virtual)?
Anyway, back to topic... I've a Nikon DSLR to use for primary camera at this stage, which would be triggered independently from guiding software. PHD2 is my hopeful choice of guiding software (is EKOS with KStars similar?), with T7C guide-camera on 240mm f/4 guidescope, and at this stage, I can confirm PHD2 at least connects to the camera on OS-X. There is an ST4 port on the camera, but having read several topics, I think I want to pulse-guide directly - is this correct or is ST4 best for this setup? This sorta comes back to software and connections - my understanding is one of the following cable setups for guiding (as a minimum) :
Guiding-camera => USB(A) => Macbook => PHD2 => USB(A) => SynscanHandset => AZEQ6
Guiding-camera => USB(A) => Macbook => PHD2 => USB(A) => AZEQ6
Guiding-camera => USB(A) => Macbook => PHD2 => Wifi => SynscaWifi Adapter on AZEQ6
[using ST4: ST4_on_AZEQ6 => Guiding-camera => USB(A) => Macbook => PHD2] (no additional connections needed if ST4 is used)
Additionally, I'd like to use an observatory package, say Stellarium/KStars/SkySafari, to select objects and drive the mount, then use guiding software to keep good 'tracking'.
Where in this train does EQMac fit in, or when is it used?
What about the 2019 addition to EQMod (ASCOM Alpaca)? Can this be used or is it already in other packages?!
For Windows users, how does EQMod fit in (if I go down route of getting Windows laptop for controlling things, is the setup similar to above?
There may be bits in the above that repeat, and for that, I'm sorry, just want to get across the message that I'm new to the guiding but haven't quite settled down into the software/hardware I'm expecting to use for 'goto' and 'guiding'
For a mac user, what setup and software are folks using for guiding and observatory softwares for the newer USB-on-mount 'AZEQ6/EQ6-R Pro' mounts from SW?
I am looking for help and advice on my SynScan EQ5 pro problem which i am struggling with. Everything was working fine and as expected. I have never updated the firmware and thought while i had everything connected i would update the Hand Controller and the skywatcher WiFi dongle.
Everything updated first time without issue and i was pleased to be up to date. However i loaded SynScan app on the pc which connected fine through the handset and USB/Serial adaptor cable. I clicked on the movement arrows and nothing happened, i then went in to a random 1 star alignment and again no response from the motors.
I powered off again and instead of the PC i tried the hand controller, i tried a 1 star alignment and the hand controller was displaying the slewing but again no response from the motors. in panic i then did the same with the WiFi dongle and phone app, same thing the software is showing movement but the scope remains still.
Knowing all was well prior to firmware updates i reverted back to the previous firmware version and no difference, i tried it again in Lo mode and still nothing. I then noticed a firmware update for the Motor Control so thought i had nothing to loose i updated the Motor Control firmware and again no sign of life from the Motors. I have swapped the cables around, checked that they are all inserted correctly, the power is from mains not battery and the power source is plugged in to a a Power Filter and Surge protector.
I have little experience of circuit board electronics, i was struggling to find similar experiences online other than voltage issues due to batteries which is not the case. I have opened it up and no obvious loose cables of solder loose, but this was straight after the firmware update which seemed to have installed and updated very smoothly no crashes etc.
Any help would be really appreciated.
First post since my initial hello message due to a lot of cloudy nights and a small wait until I could afford my very entry level camera. I would like to apologise straight away for my lack of knowledge and the poor quality of my images. The framing is terrible and they're out of focus, but I'm also completely over the moon with them. I'm very eager for you guys to rip them apart and tell me all the ways I went wrong but I will always love these 4 images as they are the very first successful AP images I've taken
My equipment is as follows
skywatcher 150pds on a eq3-2 pro synscan mount
Super coma corrector
I have tuned the motor drives for the mount but haven't stripped down and cleaned and greased the mount itself yet but plan to. Also plan to upgrade to a heq5 Pro asap. I have no guiding other then synscan. Again something else I hope to change as soon as I can but for now its an oppurtunity to learn.
None of the images are stacked, they're single 30 sec exposures. I very slightly adjusted the raw files by placing a slight s curve on the linear channel but will leave any further processing if I bother until after a good nights sleep. I've included both the before and after image.
The first image is just of vega, I took it while star aligning. A awful pic for many reasons, especially the flare coming from the star, but my first so will keep it for sentimental reasons. The second I was very happy to catch some light from the ring nebula, and was equally happy to catch the dumbell nebula a little. The fourth is the globular cluster. All really bad framing but was suprised to catch the nebula on just a 30 sec exp with my light pollution.
Can't wait for your ideas,suggestions and criticisms. My apologies for a very long post but feel very hyped up even after such awful results.
Many thanks and clear skies
I want to build a multi voltage power supply to run scope, cameras, usb hub etc each device having different power requirements
I have done some searching round the internet and come up with the following circuit, can anyone provide any advice as to whether it is an OK design or have I got it completely round my neck (Wont be the first time) I have a 24Volt 10A regulated power supply and was looking to use this as the input.
I am sure I am not the only person to want to do this, are there designs out there, I dont want to reinvent the wheel
Any advice greatly appreciated