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Name
HD 206222
AAVSO UID
000-BNR-355 (No observations)
Constellation
Cepheus
Sequence
J2000.0
21 38 45.77 +55 47 29.9 (324.69071 +55.79164)
Search nearby
B1950.0
21 37 08.89 +55 33 54.1
Galactic coord.
98.142 +2.487
Other names
(Internal only)
1SXPS J213845.8+554728
2MASS J21384574+5547299
AG+55 1484
BD+55 2612
BMAM-V752
CCDM J21388+5547AB
GSC 03971-02054
IDS J21356+5520AB
IPHAS J213845.87+554730.0
PPM 39700
SAO 33622
TDSC 59202AB
TIC 421714420
TYC 3971-2054-1
WDS J21388+5548AB
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Variability type
EA+DSCT+SPB:
Spectral type
A0
Mag. range
7.87 V (0.095)TESS
Discoverer
Mariusz Bajer
Epoch
23 Oct 2019 (HJD 2458780.191)
Ephemeris
Outburst
--
Period
41.124 d
Rise/eclipse dur.
0.96% (0.4 d)
Remarks
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1
Bajer, Mariusz
Pair AB is a visual binary (component A: V= 8.3; component B: V= 9.3; combined V= 7.87) with sep. 0.6". Eccentric system. Min II amplitude: 0.011 TESS at phase 0.489. Secondary eclipse duration 0.73%. SPB: period 0.520545 d., epoch HJD 2458779.776. DSCT period 0.0302957 d., epoch HJD 2458780.748. TESS magnitudes are for the blend of components A and B. Identification of the eclipsing binary is uncertain. Published spectral types range from B8 to A2. BP-G= -0.01; J-K= 0.03.
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References
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1
Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS)
2014SPIE.9143E..20R
2
Ochsenbein, F., 1980, SAO and Supplementary Data
1980BICDS..19...74O
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Images
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Copyright
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Size
5' x 5' (297 x 298 pixels)
Center
21 38 45.77 +55 47 29.9 (J2000)
Source
STScI
Survey
POSS2/UKSTU Red
POSS2/UKSTU Blue
POSS2/UKSTU IR
POSS1 Red
POSS1 Blue
Quick-V
HST Phase 2 (GSC2)
HST Phase 2 (GSC1)
Red, all sky, 1.0 arcsec/pixel
Negative
Supporting Documents
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5
View on secondary eclipse
Bajer, Mariusz
2020-09-29 22:54 UTC
Light curve showing SPB+DSCT varaiblity with view on secondary eclipse.
4
HD 206222 SPB phase plot
Bajer, Mariusz
2020-09-29 22:53 UTC
SPB phase plot data from TESS.
3
View on primary eclipse
Bajer, Mariusz
2020-09-29 22:52 UTC
Light curve showing SPB+DSCT varaiblity with view on primary eclipse.
2
HD 206222 DSCT phase plot
Bajer, Mariusz
2020-09-28 16:19 UTC
DSCT phase plot data from TESS (Residuals).
1
HD 206222 EA phase plot
Bajer, Mariusz
2020-09-28 14:54 UTC
EA phase plot data from TESS.
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Revision History
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1
Bajer, Mariusz
2020-09-30 03:14 UTC
Mean magnitude from Tycho. Spectral type from
1980BICDS..19...74O
. Gaia DR2 position.
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