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Here is a 30x60 sec exposure of Comet C/2025 N1 (ATLAS) taken with a Celestron 11 Edge HD at F10 from our backyard in Brisbane.
I downloaded an Ephemeris for 19th July for our back garden and imported it into The Sky X Pro as a custom database (SDB) which plotted the position in TSX.
TSX reports the comet as 16.98 mag based on the JPL Horizons data.
Celestron 11 Edge HD at F10
ASI 2600 MM Duo
Paramount MX+
30x60 sec exposures.
The 1st image is a full res 1280x960 crop around the comet trail.
The 2nd image has been inverted
The 3rd image has been up sampled by x2.
From TSX for the full FOV:
******** ASTROMETRIC SOLUTION RESULTS ********
Center RA (2000.0): 17h 25m 14.53s
Center Dec (2000.0): -18° 13' 35.3"
Scale: 0.5470 arcseconds/pixel
Size (pixels): 3124 x 2088
Angular Size: 0° 28' 29" x 0° 19' 02"
Position Angle: 0° 16' from north through east
Number of Stars Used in Solution: 1000 (100%)
FWHM: 4.59 pixels, 2.51 arcseconds
*********************************** ************
Dennis
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