David's Astronomy Pages Images - Session 1356 (2025-09-02)

Images (S1355)

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Images (S1357)

Objects	Session Notes
C/2022 N2 (PANSTARRS) - Comet     T CrB - Variable Star (potential nova in 2025)     Variable Stars (photometric monitoring) - T CrB     Nearby Stars (astrometric monitoring) - None	- Attempted late-midnight session (x hr). Session ended earlier by cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature : x°C (min). - CCD Temperature:  -10°C - Notes from 2025-09-02 >>       Keogram Plot 2025-09-02 / 2025-09-03, showing aurora     - Aurora Images from previous night 2025-09-01 / 2025-09-02  >>

Observing Result

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C/2022 N2 (PANSTARRS) - Comet

C/2022 N2 (PANSTARRS) - 2025-09-02 (passing through Aries) Sun Distance 3.84 AU (receeding) Earth Distance 3.46 AU (518.0 million km)		C/2022 N2 (PANSTARRS) - 2025-09-02 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 18.58 arcsec/hr, Dec 8.27 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-09-02 23:24 UT (#1356015-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-09-02 23:26 UT (#1356015-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2022 N2 (PANSTARRS) on Comets 2025 Page >>

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T CrB - Variable Star (the 'Blaze Star')

T CrB (Corona Borealis) Alias: GCVS T CrB, HIP 78322, SAO 84129, HD 143454 Max Magnitude  2.0 Min Magnitude 10.8 Spectral: M3III+pec(NOVA) T CrB is a a binary star and a recurrent nova about 3000 ly distance ( T Coronae Borealis  Wikipedia ) ( VSX T CrB )

Latest Light Curve Graphs >> Latest Light Curve Graphs

T CrB - Earlier Image, 2024-09-06 (S1239)

Annotated CCD Image (70% size, linear scale) 2 x 20s exposure (average combine), 3x3 binning, Clear Filter 2024-09-06 20:54 UT (#1239020-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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