2QZ J142101.4-021221

All names: 2QZ J142101.4-021221, SDSS J142101.47-021221.0, SDSS J142101.49-021221.1, WD 1418-019, Gaia DR3 3646653115224642432, Gaia DR2 3646653115224642432, GALEX J142101.5-021220, Gaia EDR3 3646653115224642432, WDJ142101.47-021220.99, SDSS J142101.47-021220.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2026b MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 21 01.50 (0.3) 14 21 01.47 14 21 01.49 (0.3) 14 21 01.47 (0.3) 14 21 01.47 14 21 01.18 14 21 01.47
Declination -02 12 21.17 (0.2) -02 12 20.99 -02 12 21.16 (0.2) -02 12 20.98 (0.2) -02 12 21.02 -02 12 17.64 -02 12 20.92
Spectral type DB DC: DC: DC DC: DC: DC DB
Effective temperature [K] 11388.0 (202) 10440.0 10584.0 12326.0 (359) 11382.0 (375)
log(g) [cgs] 8.11 (0.07) 8.11 8.05 8.66 (0.3) 8.13 (0.3)
Mass [M] 0.649 (0.06) 0.665 0.612
log(Luminosity) [L]
Cooling age [Gyr] 0.6248 0.5778
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(Li/He)
log(Be/He)
log(B/He)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(K/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 4.41 (0.3) 4.50 (0.4) 4.41 (0.3)
Distance [pc] 226.96 (16) 221.98 (19) 226.96 (16)
Composition He
Proper motion (right ascension) [mas/yr] 23.73257545 (0.4) 23.34878766 (0.5) 23.733 (0.4) 37.5
Proper motion (declination) [mas/yr] -11.48844633 (0.3) -11.2111913 (0.5) -11.488 (0.3) -14.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.69
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.92 (0.02) 18.93 (0.02) 18.92 (0.03) 18.92 18.92 (0.03)
g magnitude 18.88 (0.009) 18.88 (0.009) 18.90 (0.03) 18.89 18.89 (0.03)
r magnitude 19.01 (0.01) 19.01 (0.01) 19.01 (0.02) 19.01 (0.02)
i magnitude 19.16 (0.02) 19.16 (0.02) 19.15 (0.03) 19.15 (0.03)
z magnitude 19.32 (0.07) 19.32 (0.07) 19.30 (0.06) 19.30 (0.06)
G magnitude 18.90 (0.03) 18.95 18.90 (0.004)
BP magnitude 18.97 (0.03) 18.99
RP magnitude 18.92 (0.05) 18.92
Pan g magnitude 18.90 (0.01)
Pan r magnitude 19.01 (0.005)
Pan i magnitude 19.19 (0.007)
Pan z magnitude 19.33 (0.03)
Pan y magnitude 19.48 (0.06)
E(B-V) 0.032

* 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.