2SLAQ J231901.24-004949.6

All names: SDSS J231901.24-004949.7, SDSS J231901.25-004949.5, WIRED J231901.25-004949.5, GALEX J231901.2-004949, Gaia DR2 2644810452508393216, WD 2316-011, SDSS J231901.24-004949.5, SDSS J231901.24-004949.6, 2SLAQ J231901.24-004949.6, USNO-A2.0 0825-19912091, SDSS J231901.23-004949.4, SDSS J231901.24-004949.3, Gaia EDR3 2644810452508393216, SDSS J231901.25-004949.4, Gaia DR3 2644810452508393216, SDSS J231901.25-004949.3, SDSS J231901.23-004949.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 23 19 01.25 (0.3) 23 19 01.24 23 19 01.25 (0.4) 23 19 01.24 (0.3) 23 19 01.24 23 19 00.98 23 19 01.25 23 19 01.25
Declination -00 49 50.30 (0.3) -00 49 49.70 -00 49 50.27 (0.4) -00 49 49.55 (0.3) -00 49 49.64 -00 49 46.56 -00 49 49.38 -00 49 49.51
Spectral type DA+M DA+M DA+M DA5.2 DA+M DA+MS
Effective temperature [K] 8326.0 9728.0 (111) 9591.0 (102) 9760.0 (112)
log(g) [cgs] 7.28 8.00 (0.2) 7.98 (0.2) 8.02 (0.2)
Mass [M] 0.276
log(Luminosity) [L]
Cooling age [Gyr] 0.4837
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 3.48 (0.4) 3.36 (0.5) 3.48 (0.4)
Distance [pc] 287.32 (34) 297.70 (47) 287.32 (34)
Composition H
Proper motion (right ascension) [mas/yr] 12.38325307 (0.4) 10.67174903 (1) 12.383 (0.4) 13.9 13.0
Proper motion (declination) [mas/yr] -46.45798101 (0.3) -47.10319262 (0.7) -46.458 (0.3) -49.5 -49.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude 18.70 (0.3)
V magnitude
R magnitude 19.10 (0.3)
I magnitude
J magnitude 17.33 (0.03)
H magnitude 16.78 (0.04)
K magnitude 16.42 (0.04)
u magnitude 19.82 (0.03) 19.82 (0.03) 19.79 (0.05) 19.75 19.76 (0.05) 19.75 (0.05)
g magnitude 19.25 (0.01) 19.25 (0.01) 19.34 (0.02) 19.33 19.32 (0.02) 19.33 (0.02)
r magnitude 19.29 (0.01) 19.29 (0.01) 19.30 (0.02) 19.31 19.29 (0.02) 19.31 (0.02)
i magnitude 19.27 (0.02) 19.27 (0.02) 19.27 (0.02) 19.29 19.26 (0.02) 19.29 (0.02)
z magnitude 18.90 (0.04) 18.90 (0.04) 18.88 (0.05) 18.88 18.87 (0.05) 18.88 (0.05)
G magnitude 19.25 (0.03) 19.28 19.25 (0.006)
BP magnitude 19.32 (0.03) 19.35
RP magnitude 18.81 (0.03) 18.78
Pan g magnitude 19.26 (0.01)
Pan r magnitude 19.32 (0.004)
Pan i magnitude 19.29 (0.01)
Pan z magnitude 19.07 (0.02)
Pan y magnitude 18.75 (0.02)
E(B-V) 0.042

* 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.