PB 3660

All names: PB 3660, Gaia DR2 1280674894509973760, SDSS J143019.06+281100.9, WD 1428+284, Gaia DR3 1280674894509973760, GALEX J143019.1+281101, SDSS J143019.06+281100.8, Gaia EDR3 1280674894509973760, LAMOST J143019.03+281100.5, WDJ143019.06+281101.05, SDSS J143019.05+281100.8, J1430+2811, SDSS J143019.05+281100.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Ferrario et al. 2015 Kulebi et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 30 19.02 (0.04) 14 30 19.05 14 30 19.02 (0.07) 14 30 19.05 14 30 19.02 14 30 19.06 (0.04) 14 30 19.02 14 30 18.98 14 30 19.06
Declination 28 11 00.29 (0.07) 28 11 00.86 28 11 00.31 (0.1) 28 11 00.82 28 11 00.29 28 11 01.05 (0.07) 28 11 00.31 28 10 54.84 28 11 00.87
Spectral type DAH DAH DAH DA MagneticWD DA DAH DA: DAH DAH DAH5.6 DAH DAH
Effective temperature [K] 9163.0 (76) 9050.0 (73) 9163.0 (77) 8800.0 9000.0 8799.0 (112) 7906.0 (53)
log(g) [cgs] 8.56 (0.01) 8.53 (0.01) 8.55 (0.01) 8.49 8.00 (0) 8.51 (0.02) 9.48 (0.04)
Mass [M] 0.957 (0.01) 0.939 (0.01) 0.95 (0.01) 0.911 0.922 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 2.2300 2.1100
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
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] 14.17 (0.1) 14.04 (0.1) 14.04 (0.1) 14.17 14.17 (0.1) 14.04 (0.1)
Distance [pc] 70.55 (0.5) 71.23 (0.7) 71.22 (0.7) 70.55 70.55 (0.5) 71.22 (0.7)
Composition H H H H
Proper motion (right ascension) [mas/yr] -40.85330854 (0.09) -40.9841902 (0.2) -40.853 (0.09) -40.984
Proper motion (declination) [mas/yr] -47.54841963 (0.09) -47.59388445 (0.2) -47.548 (0.09) -47.594
Variability
Magnetic yes yes yes
Bd [MG] 9.34 (1) 9.34 (1)
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude
I magnitude
J magnitude 17.39 (0.04)
H magnitude
K magnitude
u magnitude 18.02 (0.01) 18.00 (0.01) 18.02 (0.01) 18.02 (0.01) 18.03 17.98 (0.02)
g magnitude 17.68 (0.005) 17.68 (0.005) 17.68 (0.005) 17.68 17.68 (0.02)
r magnitude 17.68 (0.006) 17.68 (0.006) 17.68 (0.006) 17.68 17.69 (0.01)
i magnitude 17.75 (0.007) 17.75 (0.007) 17.75 (0.007) 17.74 17.74 (0.02)
z magnitude 17.91 (0.02) 17.91 (0.02) 17.91 (0.02) 17.92 17.90 (0.02)
G magnitude 17.64 (0.007) 17.66 17.64 17.64 (0.003) 17.66
BP magnitude 17.74 (0.007) 17.73 17.73
RP magnitude 17.50 (0.01) 17.49 17.49
Pan g magnitude 17.71 (0.004) 17.71 (0.004)
Pan r magnitude 17.70 (0.006) 17.70 (0.006)
Pan i magnitude 17.78 (0.004) 17.78 (0.005)
Pan z magnitude 17.90 (0.009) 17.90 (0.009)
Pan y magnitude 17.99 (0.02) 17.99 (0.02)
E(B-V) 0.007

* 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.