Gaia DR2 611074413433751680

All names: Gaia DR2 611074413433751680, SDSS J090834.33+172146.9, WDJ090834.39+172148.52, SDSS J090834.32+172146.8, WDJ090834.39+172148.53, Gaia DR3 611074413433751680, Gaia EDR3 611074413433751680

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 09 08 34.18 (0.05) 09 08 34.19 09 08 34.18 09 08 34.39 (0.05) 09 08 34.19
Declination 17 21 43.53 (0.04) 17 21 43.68 17 21 43.53 17 21 48.53 (0.04) 17 21 43.68
Spectral type DC DC DC: DC
Effective temperature [K] 4840.0 (16) 4945.0 (60) 4781.0 4486.0 5107.0 (20)
log(g) [cgs] 7.30 (0.007) 7.32 (0.05) 7.02 6.68 7.37 (0.01)
Mass [M] 0.312 (0.003) 0.282 (0.01) 0.172 0.094 0.28 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 1.6730
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] 30.68 (0.06) 30.68 (0.06) 30.65 (0.08) 30.68 30.68 (0.06) 30.65 (0.08)
Distance [pc] 32.60 (0.06) 32.59 (0.06) 32.62 (0.09) 32.60 32.60 (0.06) 32.62 (0.09)
Composition H
Proper motion (right ascension) [mas/yr] -192.5461986 (0.07) -192.568644 (0.1) -192.546 (0.07) -192.568644
Proper motion (declination) [mas/yr] -312.5637988 (0.05) -312.613968 (0.1) -312.564 (0.05) -312.613968
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.89 (0.02) 18.89 (0.02)
g magnitude 17.21 (0.005) 17.21 (0.005)
r magnitude 16.46 (0.004) 16.46 (0.004)
i magnitude 16.16 (0.004) 16.16 (0.004)
z magnitude 16.11 (0.009) 16.11 (0.009)
G magnitude 16.59 (0.01) 16.61 16.59 16.59 (0.003) 16.61
BP magnitude 17.02 (0.01) 17.04 17.04
RP magnitude 15.91 (0.009) 15.93 15.93
Pan g magnitude 17.18 (0.008)
Pan r magnitude 16.51 (0.008)
Pan i magnitude 16.27 (0.005)
Pan z magnitude 16.12 (0.02)
Pan y magnitude 16.01 (0.004)
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.