Gaia DR2 2589614865714845312

All names: SDSS J012039.87+123154.7, NLTT 4454, Gaia DR3 2589614865714845312, WDJ012039.80+123156.55, SDSS J012039.87+123154.6, Gaia EDR3 2589614865714845312, USNO-B1.0 1025-00015891, LP 467-46, LSPM J0120+1231, Gaia DR2 2589614865714845312, WDJ012039.8+123156.55

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 01 20 39.93 (0.1) 01 20 39.93 01 20 39.93 01 20 39.80 (0.1) 01 20 39.93
Declination 12 31 53.07 (0.1) 12 31 53.18 12 31 53.07 12 31 56.55 (0.1) 12 31 53.18
Spectral type DA DC DC
Effective temperature [K] 5037.0 (42) 5033.0 4717.0 5116.0 (54)
log(g) [cgs] 7.99 (0.02) 7.99 7.77 8.04 (0.03)
Mass [M] 0.574 (0.02) 0.573 0.439 0.603 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 5.3840 4.1710
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] 19.41 (0.2) 19.43 (0.2) 19.41 19.41 (0.2) 19.43 (0.2)
Distance [pc] 51.51 (0.5) 51.46 (0.6) 51.51 51.51 (0.5) 51.46 (0.6)
Composition H
Proper motion (right ascension) [mas/yr] 118.130802 (0.2) 117.7768626 (0.4) 118.131 (0.2) 117.7768626
Proper motion (declination) [mas/yr] -217.7929221 (0.1) -217.8467443 (0.3) -217.793 (0.1) -217.8467443
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.00
V magnitude
R magnitude 17.70
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.59 (0.06) 20.59 (0.06)
g magnitude 19.02 (0.01) 19.02 (0.01)
r magnitude 18.34 (0.008) 18.34 (0.008)
i magnitude 18.07 (0.009) 18.07 (0.009)
z magnitude 17.99 (0.02) 17.99 (0.02)
G magnitude 18.37 (0.02) 18.40 18.37 18.37 (0.003) 18.40
BP magnitude 18.85 (0.02) 18.92 18.92
RP magnitude 17.77 (0.01) 17.80 17.80
Pan g magnitude 18.95 (0.02)
Pan r magnitude 18.33 (0.008)
Pan i magnitude 18.10 (0.004)
Pan z magnitude 17.98 (0.01)
Pan y magnitude 18.00 (0.01)
E(B-V) 0.002

* 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.