Gaia DR2 920086173530528256

All names: SDSS J074837.20+384124.3, WDJ074837.2+384124.34, SDSS J074837.20+384124.4, Gaia DR2 920086173530528256, Gaia EDR3 920086173530528256, WDJ074837.20+384124.35

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Simbad Gentile Fusillo et al. 2018
Right ascension 07 48 37.32 (0.2) 07 48 37.32 07 48 37.20 (0.2) 07 48 37.32
Declination 38 41 22.69 (0.1) 38 41 22.75 38 41 24.35 (0.2) 38 41 22.75
Spectral type CND
Effective temperature [K] 5887.0 5643.0
log(g) [cgs] 7.94 7.78
Mass [M] 0.553 0.447
log(Luminosity) [L]
Cooling age [Gyr] 2.1390 2.2640
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 11.92 (0.2) 11.79 (0.3) 11.79 (0.3) 11.79 (0.3)
Distance [pc] 83.86 (1) 84.79 (2) 84.79 (2) 84.79 (2)
Composition
Proper motion (right ascension) [mas/yr] 88.0508034 (0.2) 88.63239333 (0.4) 88.632 (0.4) 88.63239333
Proper motion (declination) [mas/yr] -103.3670989 (0.1) -103.3004335 (0.3) -103.3 (0.3) -103.3004335
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.97 (0.03) 19.98 (0.04)
g magnitude 19.06 (0.01) 19.05 (0.01)
r magnitude 18.65 (0.009) 18.64 (0.01)
i magnitude 18.48 (0.01) 18.50 (0.01)
z magnitude 18.45 (0.03) 18.48 (0.04)
G magnitude 18.67 (0.03) 18.69 18.69 (0.003) 18.69
BP magnitude 18.98 (0.03) 19.06 19.06
RP magnitude 18.15 (0.03) 18.20 18.20
Pan g magnitude 19.01 (0.007)
Pan r magnitude 18.66 (0.007)
Pan i magnitude 18.54 (0.004)
Pan z magnitude 18.51 (0.009)
Pan y magnitude 18.45 (0.05)
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.