Spent all night trying to focus

[dblcross]

I spent all night trying to use a bahtinov mask on my 6" 900mm refractor using prime focus and eyepiece projection with my nikkon 300d and could never get it right in live view zoom in. I'm a beginner so I don't have extra camera batteries to spend all night trying to focus.  I'm sure you understand my pain when I've taken 107, 30 second exposures in 32F weather and deep sky stacker tells me it sees no stars. Any tips would be great. And I was super excited I caught 3 meteorites in this shot btw!

Edited January 16, 2022 by dblcross

[Rallemikken]

You have serious star-trails there. I'd say focus looks decent. What mount? Is it tracking? Polar aligned? DSS will not stack unless stars are round, or almost round.

[ONIKKINEN]

I would agree with @Rallemikken with the focus and tracking. Your starshapes have an elongation along the DEC axis, indicating polar alignment issues. Could also be mount shakiness in your DEC axis if you touched the camera every time you took a picture. If the latter is true, figure out a way to shoot without physically touching the camera.

What mount was used and was it polar aligned? a 6'' refractor will be a heavy load for most mounts, so i am willing to bet this is a major part of the issues.

[Simon Pepper]

As above need more info also that’s Starlink not meteors 👍

[dblcross]

It's a celestron star navigator go to mount.

 

[dblcross]

I'm also using a wireless remote. No physical interaction with my mount. Maybe my exposure is to long?

[dblcross]

Celestron 900mm refractor telescope

 

[dblcross]

7 hours ago, Simon Pepper said:

As above need more info also that’s Starlink not meteors 👍

Even better!