2023-03-06, 11:40 PM
(This post was last modified: 2023-03-06, 11:54 PM by Dennis.
Edit Reason: Typo
)
Thanks for the heads up Phil, I finally managed to get out and set up once more after months of unfavourable conditions. 
Here is a 30 sec exposure of 2023 DQ tracked on the NEO, taken from Brisbane 2023-03-06 11:06 UTC (6th March 2023 at 9:06PM (AEST)). It is the faint, lonely dot towards the centre. There was a 98% Moon just over 30 degrees away flooding the field with moonlight.
I was using the Tak Mewlon 210 F11.5 fitted with the Tak x0.8 Reducer and the QHY268M CMOS camera Binned 2x2.
Using the image scale from the Plate Solve, I calculated the focal ratio to be F10.2, which translates to a focal length of 2142 mm. The Pixel scale is 0.724 arcsec/pixel
Cheers
Dennis
Unfortunately, as this was my first session for s few months I was a bit rusty and couldn’t find all the accessories I required, so I had to use a 2” push-fit clamp with a brass collar and 3 set screws to assemble the imaging train (rather than all screw threaded) and I think this assembly micro-shifted during the session so I had a few wobbly trails.
For those who prefer a bit of celestial dynamism, here we have the trail of 2023 DQ, a series of 30 sec exposures just tracking at the Sidereal Rate.
The 98% Moon lurking some 30 dgrees away made the trail quite difficult to dig out of the bright BG.
Brisbane QLD, 2023-03-06 11:15 UTC to 2023-03-06 11:34 UTC
(2023-03-06, 21:15 to 21:34 AEST)
Cheers
Dennis
Here is a 30 sec exposure of 2023 DQ tracked on the NEO, taken from Brisbane 2023-03-06 11:06 UTC (6th March 2023 at 9:06PM (AEST)). It is the faint, lonely dot towards the centre. There was a 98% Moon just over 30 degrees away flooding the field with moonlight.
I was using the Tak Mewlon 210 F11.5 fitted with the Tak x0.8 Reducer and the QHY268M CMOS camera Binned 2x2.
Using the image scale from the Plate Solve, I calculated the focal ratio to be F10.2, which translates to a focal length of 2142 mm. The Pixel scale is 0.724 arcsec/pixel
Cheers
Dennis
Unfortunately, as this was my first session for s few months I was a bit rusty and couldn’t find all the accessories I required, so I had to use a 2” push-fit clamp with a brass collar and 3 set screws to assemble the imaging train (rather than all screw threaded) and I think this assembly micro-shifted during the session so I had a few wobbly trails.
For those who prefer a bit of celestial dynamism, here we have the trail of 2023 DQ, a series of 30 sec exposures just tracking at the Sidereal Rate.
The 98% Moon lurking some 30 dgrees away made the trail quite difficult to dig out of the bright BG.
Brisbane QLD, 2023-03-06 11:15 UTC to 2023-03-06 11:34 UTC
(2023-03-06, 21:15 to 21:34 AEST)
Cheers
Dennis