WD 2150+021

All names: Gaia DR3 2693914886618675456, USNO-B1.0 0923-00745092, PG 2150+021, GALEX J215330.1+022313, WD 2150+021, Gaia EDR3 2693914886618675456, Gaia DR2 2693914886618675456

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Koester et al. 2005 Liebert et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 53 30.12 (0.2) 21 53 30.13 (0.4) 21 53 30.12 21 53 30.16 (0.2) 21 53 22.39
Declination 02 23 11.83 (0.1) 02 23 11.85 (0.2) 02 23 11.83 02 23 12.36 (0.1) 02 21 16.20
Spectral type DA DA DA DA1.2 DA3
Effective temperature [K] 42150.0 (673) 40874.0 (158) 42300.0 41320.0 (668) 30764.0 (914)
log(g) [cgs] 7.83 (0.05) 7.66 (0.02) 7.60 7.72 (0.06) 7.59 (0.06)
Mass [M] 0.59 (0.02) 0.55 (0.02) 0.462 (0.03)
log(Luminosity) [L] -0.13
Cooling age [Gyr] 0.0038
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] 3.92 (0.2) 4.47 (0.5) 3.92 3.92 (0.2)
Distance [pc] 254.99 (13) 223.72 (23) 289.00 315.00 254.99 254.99 (13)
Composition H H
Proper motion (right ascension) [mas/yr] -37.69587107 (0.2) -36.84056196 (0.4) -37.696 (0.2)
Proper motion (declination) [mas/yr] -32.81510725 (0.2) -34.08536307 (0.4) -32.815 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity Ddu
B magnitude 16.12
V magnitude 16.40 16.40
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.37 (0.005) 16.39 16.37 16.37 (0.004)
BP magnitude 16.22 (0.005) 16.17
RP magnitude 16.58 (0.005) 16.59
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.071

* 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.