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Name
  V0421 Cep  
AAVSO UID
000-BCN-683 (12 observations)  
Constellation
Cepheus Sequence
J2000.0
21 17 18.79 +58 36 41.4  (319.32829 +58.61150) Search nearby
B1950.0 21 15 56.42 +58 24 03.3
Proper motion
RA: -4.032 +/- 0.023 mas/yDec: -2.993 +/- 0.023 mas/ySource: Gaia DR1
Galactic coord. 97.997 +6.530
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
ADS 14832 ADS 14832 A ALS 11804
BD+57 2309 CSV 8645 GSC 03965-00595
HD 203025 HIP 105091 HR 8153
IRAS 21159+5823 LS III +58 6 MCW 979
MWC 365 NSV 13646 PPM 39313
SAO 33288 TIC 314576961 TYC 3965-595-1
Trumpler 37 909 WDS J21173+5837A  
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Variability type
SPBLERI:
Spectral type B3III(e)
Mag. range
6.38 - 6.45 V
Discoverer --
Epoch
09 Mar 2021 (HJD 2459282.9) Ephemeris
Outburst --
Period 1.4931 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Other period 0.80011 d.
2 GCVS Team SB, Porb1 = 5.4136d, Porb2 = 225.44d.
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References
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1 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
2 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200
1997yCat.1239....0E
3 Lesh, J. R., 1968, The Kinematics of the Gould Belt: an Expanding Group? 1968ApJS...17..371L
4 Simonson, S. C., 1968, A Spectroscopic and Photometric Investigation of the
Association Cepheus OB2
1968ApJ...154..923S
External Links
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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 = 5.92H = 5.92K = 5.88J - K = 0.04
AllWISE W1 = 5.73W2 = 5.46W3 = 5.27W4 = 3.59W1 - W2 = 0.27W3 - W4 = 1.68
Images
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Supporting Documents
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2 JD light curve Otero, Sebastian Alberto 2023-10-08 00:22 UTC Portion of TESS light curve to show the beating of several periods.
1 Phase plot Otero, Sebastian Alberto 2023-10-08 00:21 UTC Phase plot with TESS data.
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Revision History
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5 Otero, Sebastian Alberto 2023-10-08 00:21 UTC Type, period and epoch from TESS data. Spectral type from 1968ApJ...154..923S and 1968ApJS...17..371L.
4 Otero, Sebastian Alberto 2023-08-27 02:01 UTC Range derived from Hipparcos and GCPD data.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:53 UTC Added spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.