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Details for Revision 1
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Name
  HD 331222  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
19 47 27.64 +33 29 01.2  (296.86517 +33.48367) Search nearby
B1950.0 19 45 33.33 +33 21 32.0
Galactic coord. 68.704 +4.124
Other names

(Internal only)
2MASS J19472764+3329011 BD+33 3596 GSC 02660-00297
IRAS 19455+3321 TIC 59023080 TYC 2660-297-1
UCAC4 618-088165 USNO-A2.0 1200-13218917 USNO-B1.0 1234-0399496
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Variability type
SRB
Spectral type M2
Mag. range
9.60 - 9.88 V
Discoverer Adam Derdzikowski
Epoch
30 Aug 2014 (HJD 2456900.0) Ephemeris
Outburst --
Period 30.3 d
Rise/eclipse dur. --
Remarks
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1 Derdzikowski, Adam Other period: 26.8 d. J-K: 1.19. B-V: 1.86.
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References
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1 Oelkers, R. J.; et al., 2018, Variability Properties of Four Million
Sources in the TESS Input Catalog Observed with the Kilodegree Extremely
Little Telescope Survey
2018AJ....155...39O
2 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
3 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
2017PASP..129j4502K
4 LEE O.J., BALDWIN R.J., HAMLIN D.W., BARTLETT T.J., GORE G.D. and BALDWIN
T.J. Dearborn catalog of faint red stars : titanium oxide stars in zones
-4. 5[degrees] to +13.5[degrees]
1947AnDea...5....1L
External Links
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Supporting Documents
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2 HD 331222 phase plot Derdzikowski, Adam 2019-02-09 21:49 UTC Phase plot using ASAS-SN data
1 HD 331222 plot Derdzikowski, Adam 2019-02-09 21:49 UTC Plot using ASAS-SN data
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Derdzikowski, Adam 2019-12-22 17:15 UTC Gaia DR2 position
1 Derdzikowski, Adam 2019-02-13 01:41 UTC Initial submission.