Gaia DR2 128436220983493632

All names: USNO-B1.0 1178-00056958, Gaia DR3 128436220983493632, Gaia DR2 128436220983493632, Gaia EDR3 128436220983493632, WDJ024738.98+275313.69, LSPM J0247+2753

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 02 47 38.98 (0.2) 02 47 38.98 02 47 38.98 02 47 38.97 (0.2) 02 47 38.98
Declination 27 53 10.52 (0.2) 27 53 10.62 27 53 10.52 27 53 13.69 (0.2) 27 53 10.62
Spectral type DC DC
Effective temperature [K] 4934.0 4654.0 4938.0 (85)
log(g) [cgs] 7.07 6.76 7.21 (0.06)
Mass [M] 0.187 0.109 0.227 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.5690
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.66 (0.2) 11.91 (0.3) 12.66 12.66 (0.2) 11.91 (0.3)
Distance [pc] 79.02 (1) 83.94 (2) 79.02 79.02 (1) 83.94 (2)
Composition
Proper motion (right ascension) [mas/yr] 4.808211283 (0.2) 4.581578341 (0.6) 4.808 (0.2) 4.581578341
Proper motion (declination) [mas/yr] -198.3369592 (0.2) -198.528463 (0.4) -198.337 (0.2) -198.528463
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.20
V magnitude
R magnitude 18.70
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.47 (0.04) 18.50 18.47 18.47 (0.004) 18.50
BP magnitude 19.05 (0.04) 19.03 19.03
RP magnitude 17.87 (0.03) 17.83 17.83
Pan g magnitude 19.06 (0.01)
Pan r magnitude 18.43 (0.004)
Pan i magnitude 18.18 (0.004)
Pan z magnitude 18.08 (0.004)
Pan y magnitude 18.03 (0.008)
E(B-V) 0.005

* 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.