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Latest Details
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Name
  PMAK V147  
AAVSO UID
000-BQH-256 (47 observations)  
Constellation
Andromeda Sequence
J2000.0
23 25 12.41 +42 22 56.1  (351.30171 +42.38225) Search nearby
B1950.0 23 22 48.18 +42 06 26.2
Galactic coord. 106.379 -17.701
Other names

(Internal only)
2MASS J23251242+4222561 GSC 03238-00575 TIC 174042954
UCAC4 662-113855 USNO-A2.0 1275-18387214 USNO-B1.0 1323-0593238
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Variability type
ELL
Spectral type G3
Mag. range
13.40 V (0.03)TESS
Discoverer Maksym Pyatnytskyy (PMAK (AAVSO))
Epoch
18 Oct 2022 (HJD 2459870.657) Ephemeris
Outburst --
Period 0.315048 d  (7.5612 h)
Rise/eclipse dur. --
Remarks
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1 Pyatnytskyy, Maksym J-K= 0.49, B-V= 0.84 (APASS DR9).
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References
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1 Su, T.; et al., 2024, Magnetic Activity of Millions of G-type Stars Based
on the LAMOST DR10 Low-resolution Spectral and TESS Light-curve Surveys and
the Future CSST Survey		 2024ApJS..271...60S
2 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source		 2022yCat.1355....0G
3 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I		 2020RNAAS...4..204H
External Links
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Images
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Supporting Documents
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2 Phase Plot Pyatnytskyy, Maksym 2025-09-23 17:16 UTC Phase plot with TESS and PMAK data.
1 TESS Light Curve Pyatnytskyy, Maksym 2025-09-23 17:08 UTC Fragment of the TESS light curve.
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Revision History
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1 Pyatnytskyy, Maksym 2025-10-09 22:17 UTC Gaia DR3 position. Mean magnitude derived from Gaia DR3 data. Spectral type from 2024ApJS..271...60S.

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