WD 1446+28

All names: LAMOST J144814.08+282511.7, TON 214, WDJ144814.08+282511.64, J1448+2825, WIRED J144814.08+282511.7, SDSS J144814.07+282511.6, Gaia EDR3 1281410781322153216, Gaia DR3 1281410781322153216, Gaia DR2 1281410781322153216, WD 1446+28, WD 1446+286, Ton 214, SDSS J144814.08+282511.7, PG 1446+286, 1SWASP J144814.07+282511.6, 2MASS J14481408+2825117, uvby98 680144605, TIC 219840114

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Liebert et al. 2005 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 48 14.08 (0.02) 14 48 14.08 14 48 14.08 (0.03) 14 48 14.08 14 48 14.08 (0.02) 14 48 14.08 14 48 13.58 14 48 14.08
Declination 28 25 11.66 (0.03) 28 25 11.69 28 25 11.66 (0.04) 28 25 11.66 28 25 11.64 (0.03) 28 25 11.66 28 25 08.76 28 25 11.73
Spectral type DA DA DA DA DA DA DA2.1 DA DA2 DA DA
Effective temperature [K] 23703.0 (342) 23706.0 (342) 21445.0 23846.0 (121) 23860.0 (364) 22890.0 (348) 23533.0 (238) 23954.0 (91)
log(g) [cgs] 8.44 (0.01) 8.43 (0.01) 8.33 8.41 (0.02) 8.43 (0.05) 8.42 (0.05) 8.43 (0.008) 8.39 (0.01)
Mass [M] 0.897 (0.009) 0.891 (0.01) 0.827 0.88 (0.01) 0.89 (0.03) 0.89 (0.03) 0.89 (0.007) 0.852 (0.006)
log(Luminosity) [L] -1.64
Cooling age [Gyr] 0.1135 0.1259
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] 20.80 (0.04) 20.67 (0.05) 20.80 20.80 (0.04) 20.67 (0.05)
Distance [pc] 48.07 (0.09) 48.38 (0.1) 48.00 47.00 48.07 48.07 (0.09) 48.38 (0.1)
Composition H H H
Proper motion (right ascension) [mas/yr] 1.292915043 (0.03) 1.223884978 (0.08) 1.293 (0.03) 1.224
Proper motion (declination) [mas/yr] 1.00141913 (0.03) 1.267039612 (0.09) 1.001 (0.03) 1.267
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 14.54 14.71
R magnitude
I magnitude
J magnitude 15.17 (0.04)
H magnitude 15.27 (0.1)
K magnitude 15.54 (0.2)
u magnitude 14.25 (0.003) 14.25 (0.003) 14.25 (0.003) 14.25 14.27 (0.02)
g magnitude 14.37 (0.003) 14.37 (0.003) 14.37 (0.003) 14.39 14.42 (0.02)
r magnitude 14.79 (0.004) 14.79 (0.004) 14.79 (0.004) 14.82 (0.01)
i magnitude 15.09 (0.005) 15.09 (0.005) 15.09 (0.005) 15.09 (0.02)
z magnitude 15.42 (0.006) 15.42 (0.006) 15.42 (0.006) 15.43 (0.02)
G magnitude 14.58 (0.001) 14.60 14.58 14.58 (0.003) 14.60
BP magnitude 14.48 (0.001) 14.44 14.44
RP magnitude 14.80 (0.001) 14.80 14.80
Pan g magnitude 14.44 (0.003)
Pan r magnitude 14.79 (0.002)
Pan i magnitude 15.12 (0.002)
Pan z magnitude 15.39 (0.003)
Pan y magnitude 15.58 (0.004)
E(B-V) 0.005

* 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.