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Name
Dauban V3
AAVSO UID
000-BKV-887 (No observations)
Constellation
J2000.0
B1950.0
18 56 11.89 +20 43 49.6
Galactic coord.
52.323 +7.864
Other names
(Internal only)
2MASS J18582107+2047574
ASAS J185821+2048.0
ASASSN-V J185821.03+204757.3
NSVS 11082431
UCAC4 554-077216
USNO-B1.0 1107-0360184
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Variability type
M
Spectral type
--
Mag. range
13.0 - <17.6 V
Discoverer
Jerome Caron, Francois Kugel
Epoch
Outburst
--
Period
271 d
Rise/eclipse dur.
--
Remarks
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1
Caron, Jerome
J-K=1.48. Period changes. The NSVS data (1999-2000) fits ASAS-3 data with a period of 276 d. (Epoch 2451335). Period in ASAS-3 data (2005-2008) alone is 273 d. (Epoch 2454653). Recent Dauban data (2012) shows a period of 271 d. (Epoch 2456272) when combined with ASAS-3. Dauban CR and NSVS R1 magnitudes have been shifted to match the ASAS-3 V scale. NSVS magnitudes were corrected for light contamination from nearby stars. Minimum magnitude from GSC2.3.
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References
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Catalog Data
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2MASS
J = 8.71 H = 7.79 K = 7.22 J - K = 1.48
AllWISE
W1 = 6.59 W2 = 6.08 W3 = 5.42 W4 = 4.77 W1 - W2 = 0.51 W3 - W4 = 0.65
SDSS-DR12
u = 18.59 g = 17.55 r = 15.05 i = 14.79 z = 12.35 u - g = 1.05 r - i = 0.26
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