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Name
  GSC 03693-01705  
AAVSO UID
000-BLF-835 (1801 observations)  
Constellation
Perseus Sequence
J2000.0
02 12 19.82 +57 00 16.4  (33.08260 +57.00457) Search nearby
B1950.0 02 08 50.81 +56 46 12.5
Proper motion
RA: 2.8 +/- 2.9 mas/yDec: 0.6 +/- 1.5 mas/ySource: UCAC4
Galactic coord. 133.811 -4.149
Other names

(Internal only)
2MASS J02121981+5700163 ASASSN-V J021219.88+570017.0 NSVS 1784520
NSVS 1901923 UCAC4 736-023475 USNO-B1.0 1470-0080938
ZTF J021219.82+570016.4    
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Variability type
HADS(B)
Spectral type --
Mag. range
13.41 - 13.80 V
Discoverer Alfonso Carreno
Epoch
20 Nov 2013 (HJD 2456617.27408) Ephemeris
Outburst --
Period 0.09108389 d  (2.186013 h)
Rise/eclipse dur. 40%  (0.8744 h)
Remarks
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1 Carreno, Alfonso Elements in the table correspond to the fundamental mode. First overtone period is 0.0704693 d. with Epoch 2456619.276. Period ratio = 0.7737. Carreno, APASS and NSVS magnitudes are contaminated by UCAC4 736-023470 (V=16.4), which lies 7" to the W. NSVS magnitudes also contaminated by UCAC4 736-023477 (V=16.5; 13.3" to the SE) and by several other nearby stars. Range has been corrected.
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References
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1 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
2 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars		 2020arXiv200508662C
3 Wozniak, P.R., et al., 2004, Northern Sky Variability 2004AJ....127.2436W
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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 = 12.05H = 11.83K = 11.76J - K = 0.29
AllWISE W1 = 11.54W2 = 11.58W3 = 11.41W4 = 8.76W1 - W2 = -0.04W3 - W4 = 2.65
APASS-DR9 B = 14.20V = 13.49g' = 13.82r' = 13.22i' = 13.01B - V = 0.71
Images
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Supporting Documents
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3 Curve Period P1 Combination NSVS-APASS-Carreno Carreno, Alfonso 2013-12-03 12:53 UTC Curve comparison with data from NSVS, APASS and Carreno. Work done by Sebastian Otero.
2 Curve Period P0 Combination NSVS-APASS-Carreno Carreno, Alfonso 2013-12-03 12:52 UTC Curve comparison with data from NSVS, APASS and Carreno. Work done by Sebastian Otero.
1 Curve Carreno, Alfonso 2013-11-27 20:39 UTC
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Revision History
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2 Otero, Sebastian Alberto 2021-10-26 07:43 UTC ZTF name from 2020arXiv200508662C added. Gaia EDR3 position.
1 Carreno, Alfonso 2013-12-04 04:33 UTC Initial submission.

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