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Hi Tim, There is a better way to polar align your mount during the daytime than by using a compass. First, the mount needs to be aligned to true north and the difference between magnetic north and

Tim i don't use a compass that often, but you can get high quality ones on the cheap that also glow in the dark here's one now, and many more available:

Thanks for the info

I just use my phone and get it rough aligned. It doesn't have to be that precise. Then use Polaris to further align with my mounts head as centered as possible so I have plenty of East/West

Looking for a compass to daylight align my G11 to true north. ? Been using my smartphone but difficult to hold on a flat place on the mount. ? If anyone has found one to attach to the mount please

I'm inclined to agree with Paul...you could have mis-labelled a Flat file as a Dark and get dust mote shadows improperly subtracted from (or divided by) your Light images. But it could also be an

Great to hear! Where are these videos at? Didn’t see them in the files or database sections.

Brendan, Thankyou for the swift response. This issue started in early October after the scope had not been used for months. Works fine initially and then goes haywire after an increasingly short time.

Kenn, Probably best to post the dark, my guess is you have mixed up the calibration images. Paul

what camera are you using? -- Brian B

Do the dark spots match the dust motes on your flat?

Perhaps wrong group to post this to, but I assume most people here image the sky. When ever I use darks I always, without fail, get ugly dark spots in my calibrated images. I use Darks, Flats, Bias,

Slowly going through my backlog. This is about 1h worth of 90s streams in IR with the CN-212/ASI462MC and an Astronomik 742nm filter. I derotated 5 frames of 10min each so I have a very coarse loop

Dear Ian, I suspect this first: There is a "resettable thermal fuse" that is flat, soldered to the circuit board. It is usually labelled "F2". When that overheats, it will start to reset the CPU and

Hi Ian Are you handy wit ha multimeter??? I can supply quick guides and where to measure....what to look for but you need to be versed in some electronics. HC "Menu"......or more correctly its

After using Gemini 1 system on my Mi250 mount for many years it has developed a very odd fault. I am using it just with the hand controller and sidereal mode to slew to Mars for imaging. I just use it

I haven't done an Onstep. But when I was adapting my focuser (5 mm shaft), to my Refractors focuser, I got a 5 mm to 5 mm coupler for?the job, then bored out the shaft size for the focuser on my

For my OnStep controller I used the flex couplers that came with my older EQStar controller (see Astrogadget pages).? I don't have the exact dimensions right now but it is a matter of measuring the

Cloudy Nights Classifieds <https://www.cloudynights.com/> You have to be a member before posting an ad, but as a vendor I can do it for you as a consignment sale. I'd start at $1250 for everything

The standard places are CloudyNights (free) and Astromart (subscription), have always had good experiences with both.? We also have AstroBuySell in Canada, but probably won't be too many interested