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Latest Details
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Name
  ATO J312.2016+39.2575  
AAVSO UID
000-BNX-507 (No observations)  
Constellation
Cygnus Sequence
J2000.0
20 48 48.38 +39 15 26.8  (312.20158 +39.25744) Search nearby
B1950.0 20 46 55.12 +39 04 16.6
Galactic coord. 80.416 -2.817
Other names

(Internal only)
2MASS J20484838+3915269 GSC 03166-00715 UCAC4 647-090776
[A70] 78-0-143    
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Variability type
SR
Spectral type M5
Mag. range
12.61 - 12.83 V
Discoverer Stanislav Korotkiy, Kirill Sokolovsky, Olga Smolyankina
Epoch
29 Aug 2019 (HJD 2458725.013) Ephemeris
Outburst --
Period 43.93 d
Rise/eclipse dur. --
Remarks
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1 Sokolovsky, Kirill J-K = 1.7 +/-0.3. Spectral type from Ackermann (1970). Discovered while processing NMW survey images.
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References
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1 Tonry, J. L.; et al., 2018, ATLAS: A High-cadence All-sky Survey System 2018PASP..130f4505T
2 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
3 Sokolovsky, K.; Korotkiy, S.; Lebedev, A., 2014, The New Milky Way: A
Wide-Field Survey of Optical Transients near the Galactic plane
2014ASPC..490..395S
4 Ackermann, G., 1970, Extreme red stars in in Cygnus 1970A&A.....8..315A
External Links
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 48 48.38 +39 15 26.8 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 ASAS-SN V and g band and ATLAS cyan band lightcurves Sokolovsky, Kirill 2021-03-07 23:21 UTC
1 Phased ASAS-SN V and g band and ATLAS cyan band lightcurves shifted to a common zero-point Sokolovsky, Kirill 2021-03-07 23:21 UTC
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1 Sokolovsky, Kirill 2021-03-12 15:59 UTC Initial submission.