WD 1448+029

All names: SDSS J145104.76+024355.0, WD 1448+029, SDSS J145104.77+024355.1, GALEX J145104.8+024355, WDJ145104.77+024355.11, SDSS J145104.77+024355.0, Gaia DR2 1154456216681249536, Gaia DR3 1154456216681249536, Gaia EDR3 1154456216681249536, J1451+0243

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 Tremblay et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 14 51 04.81 (0.1) 14 51 04.77 14 51 04.80 (0.2) 14 51 04.81 14 51 04.77 (0.1) 14 51 04.80 14 51 04.77 14 51 03.53 14 51 04.77 14 51 04.77
Declination 02 43 54.50 (0.1) 02 43 55.14 02 43 54.52 (0.2) 02 43 54.50 02 43 55.11 (0.1) 02 43 54.52 02 43 55.12 02 43 52.32 02 43 55.04 02 43 55.06
Spectral type DA DA DA DA DA DA DA DA DA DA5.9 DA DA
Effective temperature [K] 8283.0 (54) 8302.0 (52) 8282.0 (54) 8252.0 8150.0 (70) 8290.0 (260) 8566.0 (44) 8107.0 (47) 8595.0 (40)
log(g) [cgs] 8.52 (0.01) 8.53 (0.02) 8.52 (0.02) 8.52 8.53 (0.1) 8.53 (0.05) 8.93 (0.07) 8.43 (0.07) 8.97 (0.04)
Mass [M] 0.93 (0.01) 0.933 (0.02) 0.931 (0.02) 0.927 0.93 (0.06) 0.936 (0.04) 0.859 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.7900 2.6390 2.8184
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] 13.37 (0.2) 13.40 (0.3) 13.40 (0.3) 13.37 13.37 (0.2) 13.40 (0.3)
Distance [pc] 74.80 (0.9) 74.63 (2) 74.64 (2) 74.80 74.80 (0.9) 74.64 (2)
Composition H H H H
Proper motion (right ascension) [mas/yr] 29.89646889 (0.1) 29.8715268 (0.3) 29.896 (0.1) 29.872 35.2 37.0
Proper motion (declination) [mas/yr] -38.09626499 (0.2) -37.88241517 (0.4) -38.096 (0.2) -37.882 -35.2 -36.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.60 (0.04) 17.57 (0.04)
H magnitude 17.52 (0.09) 17.52 (0.09)
K magnitude 17.47 (0.1) 17.50 (0.1)
u magnitude 18.49 (0.02) 18.48 (0.02) 18.49 (0.02) 18.52 (0.02) 18.50 (0.02) 18.50 18.49 (0.02) 18.50 (0.02)
g magnitude 18.10 (0.006) 18.10 (0.006) 18.12 (0.006) 18.11 (0.02) 18.11 18.10 (0.02) 18.11 (0.02)
r magnitude 18.06 (0.007) 18.06 (0.007) 18.08 (0.007) 18.08 (0.01) 18.08 18.06 (0.01) 18.08 (0.01)
i magnitude 18.09 (0.009) 18.09 (0.009) 18.10 (0.009) 18.10 (0.02) 18.10 18.09 (0.02) 18.10 (0.02)
z magnitude 18.22 (0.03) 18.22 (0.03) 18.14 (0.03) 18.23 (0.03) 18.23 18.22 (0.03) 18.23 (0.03)
G magnitude 18.02 (0.02) 18.04 18.02 18.02 (0.003) 18.04
BP magnitude 18.15 (0.02) 18.15 18.15
RP magnitude 17.83 (0.02) 17.80 17.80
Pan g magnitude 18.09 (0.005) 18.09 (0.006)
Pan r magnitude 18.09 (0.01) 18.09 (0.01)
Pan i magnitude 18.11 (0.006) 18.11 (0.005)
Pan z magnitude 18.21 (0.002) 18.21 (0.002)
Pan y magnitude 18.27 (0.01) 18.27 (0.02)
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.