Gaia DR2 4250205872691106560

All names: Gaia DR3 4250205872691106560, SDSS J201939.71+074024.2, Gaia EDR3 4250205872691106560, WDJ201939.74+074024.33, Gaia DR2 4250205872691106560, SDSS J201939.70+074024.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 19 39.63 (0.3) 20 19 39.63 20 19 39.63 20 19 39.74 (0.3) 20 19 39.63
Declination 07 40 23.76 (0.2) 07 40 23.78 07 40 23.76 07 40 24.33 (0.2) 07 40 23.78
Spectral type DZ: DZ
Effective temperature [K] 4850.0 4526.0 4683.0 (67)
log(g) [cgs] 7.95 7.72 7.93 (0.06)
Mass [M] 0.551 0.414 0.526 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 5.8430 4.2620
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.66 (0.4) 12.59 (0.5) 12.66 12.66 (0.4) 12.59 (0.5)
Distance [pc] 78.96 (2) 79.44 (3) 78.96 78.96 (2) 79.44 (3)
Composition
Proper motion (right ascension) [mas/yr] -102.3350301 (0.4) -101.239451 (0.8) -102.335 (0.4) -101.239451
Proper motion (declination) [mas/yr] -35.75867317 (0.3) -35.50747415 (0.5) -35.759 (0.3) -35.50747415
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 22.32 (0.2) 22.32 (0.2)
g magnitude 20.19 (0.02) 20.19 (0.02)
r magnitude 19.42 (0.01) 19.42 (0.01)
i magnitude 19.11 (0.01) 19.11 (0.01)
z magnitude 18.99 (0.04) 18.99 (0.04)
G magnitude 19.44 (0.03) 19.48 19.44 19.44 (0.004) 19.48
BP magnitude 20.00 (0.03) 19.95 19.95
RP magnitude 18.84 (0.02) 18.76 18.76
Pan g magnitude 20.07 (0.01)
Pan r magnitude 19.43 (0.01)
Pan i magnitude 19.14 (0.01)
Pan z magnitude 19.03 (0.02)
Pan y magnitude 18.99 (0.04)
E(B-V) 0.008

* 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.