SDSS J212717.87+053527.6

All names: SDSS J212717.87+053527.6, Gaia DR2 2699328568341712640, Gaia EDR3 2699328568341712640, SDSS J212717.86+053527.5, SDSS J212717.87+053527.5, Gaia DR3 2699328568341712640, SDSS J212717.87+053527.53, GALEX J212717.9+053528

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 21 27 17.86 (0.09) 21 27 17.87 21 27 17.87 (0.1) 21 27 17.88 (0.09)
Declination 05 35 27.39 (0.08) 05 35 27.62 05 35 27.40 (0.1) 05 35 27.71 (0.08)
Spectral type DAO DAO DAO DAO
Effective temperature [K] 95289.0 (4583) 27086.0 100000.0 (9000)
log(g) [cgs] 7.14 (0.2) 5.94 7.85 (0.1)
Mass [M] 0.52 (0.04) 0.145
log(Luminosity) [L] 1.89 (0.2)
Cooling age [Gyr] 0.0001
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] 0.81 (0.1) 0.63 (0.2) 0.81 (0.1)
Distance [pc] 1231.94 (185) 1599.61 (469) 1231.98 (185)
Composition H H
Proper motion (right ascension) [mas/yr] -13.81413421 (0.1) -13.86133689 (0.3) -13.814 (0.1)
Proper motion (declination) [mas/yr] -20.52367828 (0.09) -20.38090286 (0.3) -20.524 (0.09)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.99 (0.009) 17.00 (0.02) 16.99 (0.009)
g magnitude 17.40 (0.005) 17.41 (0.01) 17.40 (0.005)
r magnitude 17.93 (0.007) 17.95 (0.01) 17.93 (0.007)
i magnitude 18.27 (0.009) 18.26 (0.02) 18.27 (0.009)
z magnitude 18.66 (0.03) 18.63 (0.04) 18.66 (0.03)
G magnitude 17.66 (0.008) 17.69 17.66 (0.003)
BP magnitude 17.51 (0.008) 17.46
RP magnitude 17.99 (0.02) 18.00
Pan g magnitude 17.50 (0.005)
Pan r magnitude 17.94 (0.002)
Pan i magnitude 18.30 (0.006)
Pan z magnitude 18.58 (0.007)
Pan y magnitude 18.76 (0.03)
E(B-V) 0.043

* 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.