Gaia DR2 1937913952906030848

All names: Gaia DR2 1937913952906030848, Gaia DR3 1937913952907165824, WDJ232027.47+451043.43, USNO-B1.0 1351-00510803, Gaia EDR3 1937913952907165824, WDJ232027.47+451043.44, LSPM J2320+4510

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 23 20 27.70 (0.06) 23 20 27.70 23 20 27.70 23 20 27.47 (0.06) 23 20 27.70
Declination 45 10 43.36 (0.05) 45 10 43.37 45 10 43.36 45 10 43.43 (0.05) 45 10 43.37
Spectral type DQ D
Effective temperature [K] 8692.0 8430.0 7695.0 (63)
log(g) [cgs] 8.22 8.13 7.83 (0.02)
Mass [M] 0.731 0.656 0.482 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.1910 1.1570
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.76 (0.08) 12.87 (0.1) 12.76 12.76 (0.08) 12.87 (0.1)
Distance [pc] 78.37 (0.5) 77.73 (0.8) 78.37 78.37 (0.5) 77.73 (0.8)
Composition
Proper motion (right ascension) [mas/yr] 151.622475 (0.07) 151.6272771 (0.3) 151.622 (0.07) 151.6272771
Proper motion (declination) [mas/yr] -4.362504437 (0.07) -4.478851935 (0.2) -4.363 (0.07) -4.478851935
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90
V magnitude
R magnitude 17.20
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.41 (0.004) 17.43 17.41 17.41 (0.003) 17.43
BP magnitude 17.50 (0.004) 17.49 17.49
RP magnitude 17.24 (0.007) 17.25 17.25
Pan g magnitude 17.50 (0.01)
Pan r magnitude 17.48 (0.001)
Pan i magnitude 17.56 (0.005)
Pan z magnitude 17.68 (0.008)
Pan y magnitude 17.77 (0.009)
E(B-V) 0.012

* 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.