Optical 11 April 2022

From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 12 Apr 2022 12:07:21 +0200
Site 0435 Pinelands (Cape Town,South Africa)
18.5101 degrees east  33.9368 degrees south, altitude 25.5 metres

ZWO ASI 174MM cmos camera with new NIKKOR 50mm focal length lens
and aperture f/1.8. Field of view 12.5 x 7.9 degrees, 1x binning and
image scale 23.502 arcsec/pixel. Camera mounted on Celestron SLT
mount supported on outside of apartment window so no longer have to
observe through window glass or dodge window frames. Computer
controlled mount.

Timing provided by Dimension 4 and Network Time Synchronization (NTP) and
hopefully better than 0.1 seconds. SHARPCAP used to capture FITS
files,exposure 4.00 seconds and solved using ANSVR and ImageJ.

11 April 2022
-----------------

20691 90 050C   0435 F 20220411175710973 17 15 0936328+153351 85
20691 90 050C   0435 F 20220411175733935 17 15 0944051+123826 85
20691 90 050C   0435 F 20220411175747729 17 15 0948417+105114 85
22519 92 086C   0435 F 20220411173216837 17 15 0833167+111616 85
22519 92 086C   0435 F 20220411173239902 17 15 0845327+083640 85
22519 92 086C   0435 F 20220411173316569 17 15 0907378+035010 85
38773 12 048P   0435 F 20220411174527354 17 15 0920424+110843 85
38773 12 048P   0435 F 20220411174541246 17 15 0926455+135601 85
38773 12 048P   0435 F 20220411174550512 17 15 0930373+154134 85
38758 12 048A   0435 F 20220411174527354 17 15 0920268+093104 85
38758 12 048A   0435 F 20220411174541246 17 15 0926365+122526 85
38758 12 048A   0435 F 20220411174550512 17 15 0930295+141433 85
39462 13 072A   0435 F 20220411173747583 17 15 0920206+091653 85
39462 13 072A   0435 F 20220411173801477 17 15 0911187+064529 85
39462 13 072A   0435 F 20220411173815179 17 15 0901496+040531 85
45606 20 029A   0435 F 20220411180528270 17 15 0552216+384359 85
45606 20 029A   0435 F 20220411180546597 17 15 0610106+381523 85
45606 20 029A   0435 F 20220411180609755 17 15 0632289+372738 85

NOTES:
----------
Doing some "experimenting".

I believe I have sorted out my confusion about time of events.
I was wrong intitially.

Using SHARPCAP solves this problem and appears to do a better job
than ASICAP.



Cheers
Greg

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Received on Tue Apr 12 2022 - 05:08:32 UTC

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