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Name
  NSV 25843  
AAVSO UID
000-BCQ-036 (4944 observations)  
Constellation
Cepheus Sequence
J2000.0
22 09 15.47 +55 44 48.4  (332.31446 +55.74678) Search nearby
B1950.0 22 07 27.49 +55 30 02.9
Proper motion
RA: -4.670 +/- 1.215 mas/yDec: -4.218 +/- 0.684 mas/ySource: Gaia DR1
Galactic coord. 101.470 -0.215
Other names

(Internal only)
2MASS J22091545+5544484 ALS 18803 BD+55 2691
GSC 03973-01103 Gaia DR3 2197941787103709568 TIC 328866776
TYC 3973-1103-1 UCAC4 729-079982 [BBB73] 68
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Variability type
SPB
Spectral type B8IV
Mag. range
11.24 - 11.26 V
Discoverer --
Epoch
27 Mar 2024 (HJD 2460396.989) Ephemeris
Outburst --
Period 2.00712 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team Comparison star c for EE Cep.
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References
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1 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
2 Henden, A. A., 2014, AAVSO forum --
3 L.Baldinelli, S.Ghedini, IBVS N1225, 1976. 1976IBVS.1225....1B
4 L.Meinunger, IBVS N965, 1975. 1975IBVS..965....1M
5 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1973A&A....27..421B
External Links
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Location    Go   
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 10.61H = 10.47K = 10.49J - K = 0.12
AllWISE W1 = 10.42W2 = 10.44W3 = 10.24W1 - W2 = -0.02
APASS-DR9 B = 11.45V = 11.27g' = 11.33r' = 11.25i' = 11.30B - V = 0.18
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 22 09 15.47 +55 44 48.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2025-09-30 16:37 UTC Phase plot with TESS QLP data.
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Revision History
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4 Otero, Sebastian Alberto 2025-09-30 16:37 UTC Type, period and epoch from TESS QLP data. Range derived from TESS QLP data and ASAS-SN data. Gaia DR3 position.
3 Otero, Sebastian Alberto 2014-07-10 22:26 UTC Magnitude and type from AAVSO data taken with different telescopes. Tycho-2 position.
2 Admin, VSX 2007-04-04 09:55 UTC Position and spectral type from Brian Skiff's MKTypes.dat [http://vizier.u-strasbg.fr/viz-bin/Cat?III/233B].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.