Uploaded by

BAA Comet Section

Observer

dbartlett

Observed

2025 May 02 - 00:00

Uploaded

2025 May 28 - 21:25

Objects

C/2023 A3 (Tsuchinshan-ATLAS)

Planetarium overlay

Constellation

Vulpecula

Field centre

RA: 20^h13^m
Dec: +24°08'
Position angle: +177°34'

Field size

2°28' × 1°38'

Full filename

2023a3/2023a3_20250502_dbartlett.jpg

Target name

C/2023 A3 (Tsuchinshan-ATLAS)

Title

Observational Info: scope: C14 fl729mm F/2 Camera: asi6200mcP image: 28x300sec Seeing: 3.5/5 Transparency: 8/10 Observer: DEBartlett Place: JuneLake California USA (Altitude +2434m) Image Info (widefield-both ): Down sampled 2x2 (CMOS = BIN 2x2) (All images processed solely using PixInsight) Projection ............... Gnomonic Projection origin ........ [2100.241356 1384.991102] px -> [RA: 20 13 52.287 Dec: +24 08 47.73] Resolution ............... 2.126 arcsec/px Rotation ................. 177.547 deg Reference system ......... ICRS Observation start time ... 2025-05-02 10:29:24 UTC Focal distance ........... 729.45 mm Pixel size ............... 7.52 um Field of view ............ 2d 28' 49.8" x 1d 38' 9.4" Image center ............. RA: 20 13 52.287 Dec: +24 08 47.72 ex: -0.009444 px ey: +0.009314 px Image bounds: top-left .............. RA: 20 08 38.786 Dec: +23 16 28.31 ex: -1.076898 px ey: -1.828262 px top-right ............. RA: 20 19 23.375 Dec: +23 22 47.66 ex: +1.211359 px ey: -1.085933 px bottom-left ........... RA: 20 08 16.455 Dec: +24 54 09.80 ex: -1.655273 px ey: -0.232179 px bottom-right .......... RA: 20 19 09.314 Dec: +25 00 23.77 ex: +1.138294 px ey: +0.075336 px Image Info (Comet Align-both ): Projection ............... Gnomonic Projection origin ........ [1296.900974 851.000113] px -> [RA: 20 14 15.259 Dec: +24 04 51.33] Resolution ............... 2.128 arcsec/px Rotation ................. 177.598 deg Reference system ......... ICRS Observation start time ... 2025-05-02 10:29:24 UTC Focal distance ........... 728.82 mm Pixel size ............... 7.52 um Field of view ............ 1d 32' 0.7" x 1d 0' 22.3" Image center ............. RA: 20 14 15.258 Dec: +24 04 51.33 ex: +0.000126 px ey: +0.006894 px Image bounds: top-left .............. RA: 20 11 00.626 Dec: +23 32 44.78 ex: -1.120251 px ey: -1.773083 px top-right ............. RA: 20 17 40.803 Dec: +23 36 36.83 ex: +0.001967 px ey: -1.101922 px bottom-left ........... RA: 20 10 47.945 Dec: +24 32 55.24 ex: -1.782481 px ey: +0.461361 px bottom-right .......... RA: 20 17 31.440 Dec: +24 36 42.72 ex: +0.005634 px ey: +0.440888 px Down sampled 2x2 (CMOS = BIN 2x2)