Gaia DR2 1999411936053433856

All names: Gaia DR2 1999411936053433856, Gaia EDR3 1999411936053433856, SDSS J234427.15+585903.9, LSPM J2344+5859, Gaia DR3 1999411936053433856, USNO-B1.0 1489-00392086, WDJ234427.16+585903.90, SDSS J234427.15+585903.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 23 44 27.53 (0.09) 23 44 27.52 23 44 27.53 23 44 27.16 (0.09) 23 44 27.52
Declination 58 59 04.91 (0.09) 58 59 04.88 58 59 04.91 58 59 03.90 (0.09) 58 59 04.88
Spectral type DC DA D
Effective temperature [K] 5649.0 (62) 6407.0 6158.0 6485.0 (95)
log(g) [cgs] 7.87 (0.02) 8.23 8.10 8.23 (0.03)
Mass [M] 0.496 (0.02) 0.735 0.635 0.738 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 3.1810 2.8700
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 13.82 (0.1) 13.93 (0.2) 13.82 13.82 (0.1) 13.93 (0.2)
Distance [pc] 72.36 (0.6) 71.79 (0.9) 72.36 72.36 (0.6) 71.79 (0.9)
Composition He
Proper motion (right ascension) [mas/yr] 178.8004084 (0.1) 179.1643875 (0.3) 178.8 (0.1) 179.1643875
Proper motion (declination) [mas/yr] 63.33900681 (0.1) 63.27719355 (0.2) 63.339 (0.1) 63.27719355
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.20
V magnitude
R magnitude 18.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.08 (0.08) 20.08 (0.08)
g magnitude 21.95 (0.2) 21.95 (0.2)
r magnitude 19.93 (0.05) 19.93 (0.05)
i magnitude 18.46 (0.02) 18.46 (0.02)
z magnitude 18.41 (0.07) 18.41 (0.07)
G magnitude 18.35 (0.02) 18.38 18.35 18.35 (0.003) 18.38
BP magnitude 18.62 (0.02) 18.61 18.61
RP magnitude 17.95 (0.01) 17.92 17.92
Pan g magnitude 18.64 (0.02)
Pan r magnitude 18.37 (0.01)
Pan i magnitude 18.29 (0.01)
Pan z magnitude 18.31 (0.008)
Pan y magnitude 18.34 (0.01)
E(B-V) 0.006

* 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.