Gaia DR2 2273004926219966976

All names: SDSS J213059.79+722736.8, USNO-B1.0 1624-00155157, Gaia DR3 2273004926219966976, Gaia DR2 2273004926219966976, LSPM J2130+7227, Gaia EDR3 2273004926219966976, WDJ213059.66+722736.06, WDJ213059.66+722736.07

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 21 31 00.27 (0.08) 21 31 00.25 21 31 00.27 21 30 59.66 (0.08) 21 31 00.25
Declination 72 27 39.29 (0.09) 72 27 39.19 72 27 39.29 72 27 36.06 (0.09) 72 27 39.19
Spectral type DA DA DA
Effective temperature [K] 6418.0 (26) 6272.0 6023.0 6519.0 (74)
log(g) [cgs] 7.95 (0.01) 7.90 7.75 7.99 (0.02)
Mass [M] 0.56 (0.008) 0.529 0.431 0.586 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.7120 1.6820
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] 14.76 (0.08) 14.79 (0.1) 14.76 14.76 (0.08) 14.79 (0.1)
Distance [pc] 67.74 (0.4) 67.62 (0.5) 67.74 67.74 (0.4) 67.62 (0.5)
Composition H
Proper motion (right ascension) [mas/yr] 172.6309929 (0.1) 172.3502164 (0.2) 172.631 (0.1) 172.3502164
Proper motion (declination) [mas/yr] 201.689542 (0.1) 201.3665697 (0.3) 201.69 (0.1) 201.3665697
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude 17.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.78 (0.02) 18.78 (0.02)
g magnitude 18.13 (0.007) 18.13 (0.007)
r magnitude 17.83 (0.006) 17.83 (0.006)
i magnitude 17.73 (0.007) 17.73 (0.007)
z magnitude 17.71 (0.02) 17.71 (0.02)
G magnitude 17.84 (0.01) 17.86 17.84 17.84 (0.003) 17.86
BP magnitude 18.09 (0.01) 18.07 18.07
RP magnitude 17.45 (0.02) 17.41 17.41
Pan g magnitude 18.14 (0.003)
Pan r magnitude 17.86 (0.003)
Pan i magnitude 17.78 (0.005)
Pan z magnitude 17.77 (0.005)
Pan y magnitude 17.78 (0.02)
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.