Gaia DR2 2830734604590471424

All names: Gaia EDR3 2830734604590471424, WDJ230619.29+180953.43, SDSS J230619.32+180953.2, Gaia DR3 2830734604590471424, SDSS J230619.33+180953.3, WDJ230619.29+180953.42, Gaia DR2 2830734604590471424

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 23 06 19.35 (0.07) 23 06 19.34 23 06 19.35 23 06 19.29 (0.07) 23 06 19.34
Declination 18 09 53.10 (0.07) 18 09 53.11 18 09 53.10 18 09 53.43 (0.07) 18 09 53.11
Spectral type DC DC D
Effective temperature [K] 6399.0 (33) 6934.0 6673.0 6262.0 (94)
log(g) [cgs] 8.21 (0.01) 8.46 8.36 8.24 (0.02)
Mass [M] 0.703 (0.009) 0.889 0.806 0.727 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.7320 3.6130
log(H/He) -3.2
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 20.03 (0.1) 20.25 (0.1) 20.03 20.03 (0.1) 20.25 (0.1)
Distance [pc] 49.92 (0.3) 49.39 (0.3) 49.92 49.92 (0.3) 49.39 (0.3)
Composition
Proper motion (right ascension) [mas/yr] 51.28398956 (0.1) 51.04981502 (0.2) 51.284 (0.1) 51.04981502
Proper motion (declination) [mas/yr] -20.75206391 (0.1) -20.63537654 (0.2) -20.752 (0.1) -20.63537654
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.45 (0.02) 18.45 (0.02)
g magnitude 17.85 (0.006) 17.85 (0.006)
r magnitude 17.62 (0.006) 17.62 (0.006)
i magnitude 17.59 (0.007) 17.59 (0.007)
z magnitude 17.70 (0.02) 17.70 (0.02)
G magnitude 17.62 (0.01) 17.64 17.62 17.62 (0.003) 17.64
BP magnitude 17.83 (0.01) 17.83 17.83
RP magnitude 17.28 (0.009) 17.29 17.29
Pan g magnitude 17.83 (0.006)
Pan r magnitude 17.64 (0.005)
Pan i magnitude 17.62 (0.004)
Pan z magnitude 17.66 (0.006)
Pan y magnitude 17.69 (0.009)
E(B-V) 0.004

* 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.