WD 1402+506

All names: Gaia DR3 1511457265578685440, LSPM J1404+5020E, SDSS J140409.27+502036.2, Gaia DR2 1511457265578685440, WD 1402+506, NLTT 36191, J1404+5020, WDJ140409.32+502035.80, ** LDS 1405B, LP 133-374, Gaia EDR3 1511457265578685440, WDS J14043+5022B

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2026b Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 14 04 09.09 (0.09) 14 04 09.10 (0.1) 14 04 09.09 14 04 09.32 (0.09) 14 04 09.10 14 04 16.25
Declination 50 20 37.25 (0.09) 50 20 37.21 (0.1) 50 20 37.25 50 20 35.80 (0.09) 50 20 37.21 50 21 39.60
Spectral type DA DC DC DC DC DA DC DC
Effective temperature [K] 5319.0 (41) 4987.0 (42) 4919.0 (41) 5270.0 4970.0 5286.0 (57)
log(g) [cgs] 7.89 (0.02) 7.64 (0.03) 7.56 (0.03) 7.81 7.59 7.82 (0.03)
Mass [M☉] 0.518 (0.01) 0.376 (0.02) 0.341 (0.02) 0.475 0.355 0.48 (0.02)
log(Luminosity) [L☉]
Cooling age [Gyr] 2.8100 2.5780 2.6210
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(Li/H)
log(Be/H)
log(B/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(Cl/H)
log(K/H)
log(Sc/H)
log(Ti/H)
log(V/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Co/H)
log(Ni/H)
log(Cu/H)
log(Sr/H)
Parallax [mas] 16.54 (0.1) 16.40 (0.1) 16.40 (0.1) 16.54 16.54 (0.1) 16.40 (0.1)
Distance [pc] 60.46 (0.4) 60.98 (0.6) 60.99 (0.6) 60.46 60.46 (0.4) 60.99 (0.6)
Composition H He He
Proper motion (right ascension) [mas/yr] -136.6277504 (0.1) -136.4974339 (0.2) -136.628 (0.1) -136.4974339
Proper motion (declination) [mas/yr] 90.65764776 (0.1) 90.78004355 (0.2) 90.658 (0.1) 90.78004355
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude
V magnitude 18.42
R magnitude 17.70
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.06 (0.04) 20.02 (0.04) 20.05 (0.05)
g magnitude 18.80 (0.008) 18.81 (0.01)
r magnitude 18.26 (0.007) 18.31 (0.009)
i magnitude 18.00 (0.009) 18.40 (0.01)
z magnitude 18.08 (0.02) 17.86 (0.03)
G magnitude 18.35 (0.01) 18.36 18.35 18.35 (0.003) 18.36
BP magnitude 18.70 (0.01) 18.68 18.68
RP magnitude 17.59 (0.02) 17.58 17.58
Pan g magnitude 18.75 (0.007) 18.75 (0.007)
Pan r magnitude 18.31 (0.005) 18.31 (0.005)
Pan i magnitude 18.01 (0.01) 18.01 (0.01)
Pan z magnitude 18.05 (0.03) 18.05 (0.03)
Pan y magnitude 17.78 (0.05) 17.78 (0.05)
E(B-V) 0.006

* 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.