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Latest Details
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Name
  IRAS 21540+5345  
AAVSO UID
000-BNL-354 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 55 49.05 +54 00 05.5  (328.95438 +54.00153) Search nearby
B1950.0 21 54 02.85 +53 45 48.8
Galactic coord. 98.877 -0.457
Other names

(Internal only)
2MASS J21554905+5400054 GSC2.2 N012212015164 GSC2.3 N1AW015164
Gaia DR2 2173717106395892864 IPHAS J215549.05+540005.5 USNO-A2.0 1425-12528859
USNO-B1.0 1440-0379952    
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Variability type
SRA
Spectral type M7.5III
Mag. range
14.8 - 15.7 r
Discoverer Adam Derdzikowski
Epoch
23 Jun 2018 (HJD 2458293): Ephemeris
Outburst --
Period 145: d
Rise/eclipse dur. --
Remarks
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1 Derdzikowski, Adam J-K: 1.87. BP-G: 4.29.
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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 Dorda, R.; Negueruela, I.; González-Fernández, C., 2018, The red supergiant
population in the Perseus arm
2018MNRAS.475.2003D
External Links
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 55 49.05 +54 00 05.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 Phase plot Derdzikowski, Adam 2020-03-08 20:57 UTC Phase plot using ZTF data
1 JD plot Derdzikowski, Adam 2020-03-08 20:57 UTC Plot using ZTF data
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Revision History
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1 Derdzikowski, Adam 2020-03-12 20:28 UTC Initial submission. Gaia DR2 position. Minimum magnitude from Pan-STARRS1. Spectral type from 2018MNRAS.475.2003D