Gaia DR2 893633710472340992

All names: WDJ073056.80+341256.04, SDSS J073056.79+341256.0, Gaia EDR3 893633710472340992, Gaia DR2 893633710472340992, J0730+3412, GALEX J073056.8+341255, WDJ073056.8+341256.03, Gaia DR3 893633710472340992

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 07 30 56.85 (0.1) 07 30 56.84 07 30 56.85 07 30 56.80 (0.1) 07 30 56.84
Declination 34 12 55.09 (0.1) 34 12 55.12 34 12 55.09 34 12 56.03 (0.1) 34 12 55.12
Spectral type DA DA DA DA: DA
Effective temperature [K] 7060.0 (43) 7148.0 (41) 7060.0 (44) 6991.0 6732.0 7240.0 (156)
log(g) [cgs] 7.99 (0.02) 8.04 (0.02) 8.00 (0.02) 7.98 7.86 8.04 (0.04)
Mass [M] 0.583 (0.01) 0.615 (0.01) 0.594 (0.01) 0.581 0.494 0.617 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.5700 1.4860 1.4440
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] 12.08 (0.1) 12.22 (0.2) 12.22 (0.2) 12.08 12.08 (0.1) 12.22 (0.2)
Distance [pc] 82.77 (0.9) 81.83 (1) 81.84 (1) 82.77 82.77 (0.9) 81.84 (1)
Composition H H
Proper motion (right ascension) [mas/yr] 37.16286634 (0.1) 37.02491937 (0.3) 37.163 (0.1) 37.02491937
Proper motion (declination) [mas/yr] -58.87419402 (0.1) -59.17766162 (0.3) -58.874 (0.1) -59.17766162
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.35 (0.02)
H magnitude
K magnitude
u magnitude 18.68 (0.02) 18.70 (0.02) 18.68 (0.02)
g magnitude 18.18 (0.006) 18.18 (0.007)
r magnitude 18.01 (0.007) 18.00 (0.007)
i magnitude 17.96 (0.008) 17.96 (0.008)
z magnitude 17.98 (0.02) 18.00 (0.02)
G magnitude 17.96 (0.02) 17.99 17.96 17.96 (0.003) 17.99
BP magnitude 18.16 (0.02) 18.16 18.16
RP magnitude 17.64 (0.01) 17.65 17.65
Pan g magnitude 18.16 (0.006) 18.16 (0.007)
Pan r magnitude 18.00 (0.002) 18.00 (0.002)
Pan i magnitude 17.97 (0.005) 17.97 (0.004)
Pan z magnitude 18.02 (0.008) 18.02 (0.008)
Pan y magnitude 18.04 (0.008) 18.04 (0.007)
E(B-V) 0.002

* 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.