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Latest Details
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Name
  PMAK V150  
AAVSO UID
000-BQL-091 (No observations)  
Constellation
Cassiopeia Sequence
J2000.0
23 17 52.80 +60 50 05.8  (349.47000 +60.83494) Search nearby
B1950.0 23 15 41.39 +60 33 41.3
Galactic coord. 111.777 +0.006
Other names

(Internal only)
2MASS J23175281+6050059 Gaia DR3 2014109662039066880 TIC 269112631
UCAC4 755-078658 USNO-A2.0 1500-09620819 USNO-B1.0 1508-0358948
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Variability type
EA+BCEP:
Spectral type O
Mag. range
14.48 V (0.08)TESS
Discoverer Maksym Pyatnytskyy (PMAK (AAVSO))
Epoch
01 Nov 2024 (HJD 2460616.2154) Ephemeris
Outburst --
Period 41.0422 d
Rise/eclipse dur. 1.2%  (0.49 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Pyatnytskyy, Maksym J-K= 0.81, B-V= 1.58 (APASS DR9). Eccentric system, Min II depth 0.02 TESS at phase 0.293. Pulsations with elements BJD 2459898.1775 + 0.1328778 d x E, amplitude 0.01 TESS.
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References
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1 Creevey, O. L.; et al., 2023, Gaia Data Release 3: Astrophysical parameters
inference system (Apsis) I -- methods and content overview		 2023A&A...674A..26C
2 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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Location    Go   
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 23 17 52.80 +60 50 05.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 TESS Phase Plot P2= 0.1328778 days Pyatnytskyy, Maksym 2026-03-26 15:38 UTC Phase plot with TESS data, P2= 0.1328778 days.
1 TESS Phase Plot P= 41.0422 days Pyatnytskyy, Maksym 2026-03-26 15:37 UTC Phase plot with TESS data, P= 41.0422 days.
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Revision History
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1 Pyatnytskyy, Maksym 2026-04-14 19:57 UTC Gaia DR3 position. Maximum magnitude derived from Gaia DR3 data. Spectral type from 2023A&A...674A..26C.

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