PG 1647+376

All names: FBS 1647+376, J1649+3728, KUV 433-9, FBS B 145, Gaia DR3 1351486711809893888, TIC 57333022, BPS BS 16552-0031, PG 1647+376, WD 1647+375, 2MASS J16492029+3728212, Gaia DR2 1351486711809893888, Balloon 83500003, SDSS J164920.29+372821.3, KUV 16476+3733, Gaia EDR3 1351486711809893888, SDSS J164920.29+372821.2, WDJ164920.30+372821.25

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Koester et al. 2014 Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 16 49 20.22 (0.02) 16 49 20.22 (0.04) 16 49 20.22 16 49 20.30 (0.02) 16 49 20.22 16 49 20.98
Declination 37 28 21.43 (0.03) 37 28 21.42 (0.04) 37 28 21.43 37 28 21.25 (0.03) 37 28 21.42 37 28 16.32
Spectral type DA DA DA DA DA DA2.2 DA2.5
Effective temperature [K] 22206.0 (217) 22209.0 (219) 20510.0 22803.0 (310) 22640.0 (357) 22575.0 (240)
log(g) [cgs] 7.95 (0.008) 7.93 (0.009) 7.84 7.90 (0.09) 7.93 (0.05) 7.96 (0.01)
Mass [M] 0.6 (0.006) 0.591 (0.006) 0.541 0.578 (0.05) 0.59 (0.03) 0.61 (0.007)
log(Luminosity) [L]
Cooling age [Gyr] 0.0418
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H) -5.5 (0.2)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H) -6.2 (0.1)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 12.74 (0.03) 12.60 (0.05) 12.74 12.74 (0.03) 12.60 (0.05)
Distance [pc] 78.52 (0.2) 79.34 (0.3) 82.00 78.52 78.52 (0.2) 79.34 (0.3)
Composition H H H
Proper motion (right ascension) [mas/yr] -60.12953166 (0.03) -60.0487533 (0.07) -60.13 (0.03) -60.0487533
Proper motion (declination) [mas/yr] 11.23412345 (0.03) 11.27548976 (0.1) 11.234 (0.03) 11.27548976
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.90
V magnitude 14.91 (0.04) 14.98
R magnitude
I magnitude
J magnitude 15.49 (0.007)
H magnitude 15.53 (0.02)
K magnitude 15.78 (0.05)
u magnitude 14.73 (0.004) 14.73 (0.004)
g magnitude 14.77 (0.003) 14.76 (0.003)
r magnitude 15.19 (0.003) 15.18 (0.003)
i magnitude 15.50 (0.004) 15.49 (0.004)
z magnitude 15.82 (0.006) 15.81 (0.006)
G magnitude 14.99 (0.001) 15.00 14.99 14.99 (0.003) 15.00
BP magnitude 14.89 (0.001) 14.85 14.85
RP magnitude 15.20 (0.002) 15.20 15.20
Pan g magnitude 14.83 (0.003)
Pan r magnitude 15.21 (0.002)
Pan i magnitude 15.52 (0.003)
Pan z magnitude 15.79 (0.002)
Pan y magnitude 15.95 (0.003)
E(B-V) 0.011

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.