Gaia DR2 239721228805415296

All names: SDSS J031907.60+423045.1, WDJ031907.61+423045.45, TIC 192838490, LAMOST J031907.57+423044.0, 2MASS J03190762+4230456, J0319+4230, SDSS J031907.60+423045.2, WDJ03197.61+423045.44, Gaia DR3 239721228805415296, UCAC4 663-016444, Gaia DR2 239721228805415296, Gaia EDR3 239721228805415296

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Kilic et al. 2020 McCleery et al. 2020 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 03 19 07.57 (0.02) 03 19 07.57 (0.04) 03 19 07.57 03 19 07.57 03 19 07.61 (0.03) 03 19 07.57
Declination 42 30 43.91 (0.02) 42 30 43.96 (0.03) 42 30 43.96 42 30 43.91 42 30 45.45 (0.02) 42 30 43.96
Spectral type DC DBA DC DC DC DB DC
Effective temperature [K] 11142.0 (75) 10965.0 (129) 11142.0 (74) 11020.0 (81) 11020.0 (80) 10986.0 11220.0 11131.0 (64)
log(g) [cgs] 8.25 (0.008) 8.22 (0.02) 8.25 (0.008) 8.23 (0.02) 8.23 (0.02) 8.32 8.28 8.27 (0.007)
Mass [M] 0.74 (0.008) 0.72 (0.01) 0.738 (0.008) 0.805 0.76 0.751 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.7654 0.7079
log(H/He) -5.0 -5
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 32.71 (0.03) 32.71 (0.03) 32.66 (0.06) 32.66 (0.06) 32.71 32.71 (0.03) 32.66 (0.06)
Distance [pc] 30.58 (0.03) 30.57 (0.03) 30.62 (0.06) 30.62 (0.06) 30.58 30.58 (0.03) 30.62 (0.06)
Composition He
Proper motion (right ascension) [mas/yr] -27.68544528 (0.04) -27.64654494 (0.1) -27.685 (0.04) -27.64654494
Proper motion (declination) [mas/yr] -96.24888374 (0.03) -96.30086789 (0.09) -96.249 (0.03) -96.30086789
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.85 (0.02)
V magnitude 14.79 (0.01)
R magnitude 14.94 (0.1)
I magnitude
J magnitude 14.87 (0.04)
H magnitude 14.97 (0.08)
K magnitude 15.02 (0.1)
u magnitude 14.80 (0.005) 14.81 (0.004)
g magnitude 14.73 (0.004) 14.73 (0.003)
r magnitude 14.92 (0.005) 14.89 (0.004)
i magnitude 15.07 (0.006) 15.05 (0.004)
z magnitude 15.27 (0.006) 15.27 (0.006)
G magnitude 14.79 (0.001) 14.81 14.81 14.79 14.79 (0.003) 14.81
BP magnitude 14.79 (0.001) 14.77 14.77
RP magnitude 14.76 (0.002) 14.77 14.77
Pan g magnitude 14.77 (0.002)
Pan r magnitude 14.92 (0.002)
Pan i magnitude 15.11 (0.002)
Pan z magnitude 15.28 (0.005)
Pan y magnitude 15.40 (0.004)
E(B-V) 0.000

* 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.