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Name
  NADA-V122  
AAVSO UID
000-BNH-063 (No observations)  
Constellation
Lacerta Sequence
J2000.0
22 17 20.74 +50 52 58.9  (334.33642 +50.88303) Search nearby
B1950.0 22 15 22.76 +50 37 57.4
Galactic coord. 99.704 -4.906
Other names

(Internal only)
2MASS J22172073+5052590 GSC 03618-03918 IPHAS J221720.74+505259.0
KPD 2215+5037 SBC9 3347 UCAC4 705-100729
UGPS J221720.73+505259.0 URAT1 705-461575 USNO-A2.0 1350-16270017
USNO-B1.0 1408-0446252    
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Variability type
R
Spectral type sdB
Mag. range
13.37 - 13.46 V
Discoverer Adam Nowak
Epoch
13 Jun 2018 (HJD 2458282.9531) Ephemeris
Outburst --
Period 0.3078344 d  (7.38803 h)
Rise/eclipse dur. --
Remarks
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1 Nowak, Adam U-B= -0.92, B-V= -0.26, J-K= -0.11
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References
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1 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive
2019PASP..131a8003M
2 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
3 Chambers, K. C.; et al., 2016,The Pan-STARRS1 Surveys 2016arXiv161205560C
4 Heber, U.; et al., 2002, Resolving subdwarf B stars in binaries by HST
imaging
2002A&A...383..938H
External Links
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Images
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Supporting Documents
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1 Phase plot Nowak, Adam 2019-10-13 16:24 UTC Phase plot with ASAS-SN, ZTF and Pan-STARRS1 data.
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Revision History
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1 Nowak, Adam 2019-10-14 21:23 UTC Gaia DR2 position. Spectral type from 2002A&A...383..938H