WD 1416+229

All names: Gaia DR3 1253080691705594368, KUV 14161+2255, Gaia DR2 1253080691705594368, SDSS J141825.85+224132.39, WD 1416+229, SDSS J141825.83+224132.5, SDSS J141825.85+224132.3, Gaia EDR3 1253080691705594368, SDSS J141825.85+224132.4, GALEX J141825.8+224132

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Bergeron et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 14 18 25.85 (0.05) 14 18 25.83 14 18 25.83 14 18 25.85 (0.07) 14 18 25.85 14 18 25.82 (0.05) 14 18 25.92
Declination 22 41 32.43 (0.05) 22 41 32.52 22 41 32.52 22 41 32.43 (0.08) 22 41 32.43 22 41 32.67 (0.05) 22 41 30.48
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 17516.0 16366.0 15367.0 17554.0 (54) 17400.0 (50) 17410.0 (437) 17069.0 (604)
log(g) [cgs] 8.09 7.97 7.90 7.99 (0.03) 7.98 (0.02) 8.22 (0.1) 8.04 (0.04)
Mass [M] 0.644 0.577 0.535 0.58 (0.01) 0.73 (0.06) 0.618 (0.04)
log(Luminosity) [L] -2.00
Cooling age [Gyr] 0.1562 0.1862
log(H/He) -5.887 <-5.19 <-4.67 (0.2)
log(C/He)
log(Ca/He) <-6.59
log(Ca/H)
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(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] 6.42 (0.08) 6.47 (0.1) 6.42 6.42 (0.08)
Distance [pc] 155.82 (2) 154.65 (3) 163.00 116.00 155.82 155.82 (2)
Composition He He
Proper motion (right ascension) [mas/yr] 30.93186675 (0.06) 30.96750489 (0.2) 30.932 (0.06)
Proper motion (declination) [mas/yr] -15.45331827 (0.07) -15.23523658 (0.2) -15.453 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.70
V magnitude 16.60 16.90
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.76 (0.007) 16.76 (0.007) 16.76 (0.01) 16.76 (0.007)
g magnitude 16.83 (0.004) 16.83 (0.004) 16.84 (0.02) 16.83 (0.004)
r magnitude 17.18 (0.005) 17.18 (0.005) 17.17 (0.02) 17.18 (0.005)
i magnitude 17.42 (0.007) 17.42 (0.007) 17.41 (0.02) 17.42 (0.007)
z magnitude 17.66 (0.01) 17.66 (0.01) 17.67 (0.02) 17.66 (0.01)
G magnitude 17.00 (0.006) 17.04 17.00 17.00 (0.003)
BP magnitude 16.93 (0.006) 16.91
RP magnitude 17.14 (0.01) 17.12
Pan g magnitude 16.90 (0.004)
Pan r magnitude 17.18 (0.004)
Pan i magnitude 17.44 (0.003)
Pan z magnitude 17.67 (0.009)
Pan y magnitude 17.82 (0.004)
E(B-V) 0.014

* 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.