Gaia DR2 5131505910262456448

All names: SDSS J022704.87-182025.8, SDSS J022704.86-182025.8, Gaia EDR3 5131505910262456448, WDJ02274.85-182025.99, Gaia DR2 5131505910262456448, Gaia DR3 5131505910262456448, WDJ022704.85-182025.99

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 02 27 04.88 (0.1) 02 27 04.88 02 27 04.88 02 27 04.86 (0.1) 02 27 04.88
Declination -18 20 25.48 (0.1) -18 20 25.50 -18 20 25.48 -18 20 26.00 (0.1) -18 20 25.50
Spectral type DA DA DA
Effective temperature [K] 5525.0 (26) 5483.0 5199.0 5535.0 (48)
log(g) [cgs] 8.03 (0.01) 8.01 7.82 8.04 (0.02)
Mass [M] 0.604 (0.01) 0.589 0.464 0.608 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.2880 3.5240
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] 17.91 (0.2) 17.89 (0.3) 17.91 17.91 (0.2) 17.89 (0.3)
Distance [pc] 55.84 (0.5) 55.88 (1) 55.84 55.84 (0.5) 55.88 (1)
Composition H
Proper motion (right ascension) [mas/yr] 22.8040492 (0.1) 23.42358411 (0.4) 22.804 (0.1) 23.42358411
Proper motion (declination) [mas/yr] 32.17930617 (0.2) 31.68903221 (0.4) 32.179 (0.2) 31.68903221
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.89 (0.04) 19.89 (0.04)
g magnitude 18.68 (0.008) 18.68 (0.008)
r magnitude 18.15 (0.008) 18.15 (0.008)
i magnitude 17.96 (0.008) 17.96 (0.008)
z magnitude 17.92 (0.02) 17.92 (0.02)
G magnitude 18.17 (0.02) 18.20 18.17 18.17 (0.003) 18.20
BP magnitude 18.55 (0.02) 18.54 18.54
RP magnitude 17.60 (0.01) 17.59 17.59
Pan g magnitude 18.60 (0.008)
Pan r magnitude 18.14 (0.006)
Pan i magnitude 17.97 (0.005)
Pan z magnitude 17.91 (0.005)
Pan y magnitude 17.89 (0.01)
E(B-V) 0.001

* 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.