Gaia DR2 4488575286315479424

All names: WDJ175658.25+093145.69, ** LEP 155B, Gaia DR3 4488575286315479424, Gaia EDR3 4488575286315479424, USNO-B1.0 0995-00322271, Gaia DR2 4488575286315479424, LSPM J1756+0931S, WDS J17570+0932B

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 17 56 58.17 (0.2) 17 56 58.17 17 56 58.17 17 56 58.25 (0.2) 17 56 58.17
Declination 09 31 42.27 (0.2) 09 31 42.37 09 31 42.27 09 31 45.69 (0.2) 09 31 42.37
Spectral type DA: DA
Effective temperature [K] 5267.0 4978.0 5367.0 (66)
log(g) [cgs] 7.86 7.65 7.95 (0.04)
Mass [M] 0.499 0.381 0.553 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.8630 2.8430
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 13.79 (0.2) 13.76 (0.3) 13.79 13.79 (0.2) 13.76 (0.3)
Distance [pc] 72.49 (1) 72.70 (2) 72.49 72.49 (1) 72.70 (2)
Composition
Proper motion (right ascension) [mas/yr] -70.43628117 (0.2) -70.69920469 (0.6) -70.436 (0.2) -70.69920469
Proper motion (declination) [mas/yr] -214.1150214 (0.2) -214.066038 (0.7) -214.115 (0.2) -214.066038
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.40
V magnitude
R magnitude 16.20
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.78 (0.07)
g magnitude 19.37 (0.01)
r magnitude 18.73 (0.01)
i magnitude 18.46 (0.01)
z magnitude 18.46 (0.03)
G magnitude 18.79 (0.02) 18.82 18.79 18.79 (0.003) 18.82
BP magnitude 19.15 (0.02) 19.19 19.19
RP magnitude 18.19 (0.02) 18.17 18.17
Pan g magnitude 19.22 (0.01)
Pan r magnitude 18.69 (0.02)
Pan i magnitude 18.50 (0.004)
Pan z magnitude 18.43 (0.02)
Pan y magnitude 18.30 (0.09)
E(B-V) 0.007

* 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.