David's Astronomy Pages Images - Session 1281 (2024-12-10)

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Images (S1282)

Objects	Session Notes
TBA C/2023 A3 (Tsuchinshan-ATLAS) - Comet             Variable Stars (photometric monitoring) - None     Nearby Stars (astrometric monitoring) - None	- Attempted All-Night Session (5.7 hr), interrupted by and ended early by cloud.  Cold night  (-3°C).     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -3°C (min) - CCD Temperature: -25°C - Notes from 2024-12-10 >>     -

Observing Result

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C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-10 (passing through Aquila) Sun Distance 1.64 AU (receeding) Earth Distance 2.23 AU (333.7 million km)		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-10 Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 43.29 arcsec/hr, Dec 7.71 arcsec/hr)
Annotated CCD Image (50% size, log scale) 2 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-12-10 17:49 UT (#1281005-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 6 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-12-10 17:50 UT (#1281005-10) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-10		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-10
False Color CCD Image (50% size, log scale) 6 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-12-10 17:50 UT (#1281005-10) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		False Color CCD Image (100% size, log scale, cropped) Image details as left
Images of C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>

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