SDSS J232115.33-005835.5

All names: WD 2318-012, SDSS J232115.33-005835.5, GALEX J232115.3-005834, Gaia DR3 2644748914217658752, Gaia DR2 2644748914217658752, SDSS J232115.34-005835.5, Gaia EDR3 2644748914217658752

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 21 15.35 (0.3) 23 21 15.33 23 21 15.35 (0.5) 23 21 15.34 (0.3) 23 21 15.33 23 21 15.00 23 21 15.34 23 21 15.34
Declination -00 58 35.36 (0.2) -00 58 35.57 -00 58 35.37 (0.3) -00 58 35.61 (0.2) -00 58 35.56 -00 58 32.88 -00 58 35.53 -00 58 35.54
Spectral type DA DA5 DA DA4.0 DA DA
Effective temperature [K] 11787.0 12448.0 (341) 12326.0 (344) 12475.0 (343)
log(g) [cgs] 8.10 7.83 (0.1) 7.92 (0.2) 7.85 (0.1)
Mass [M] 0.664 0.564 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.4489
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] 3.26 (0.3) 3.51 (0.4) 3.26 (0.3)
Distance [pc] 306.70 (27) 284.82 (31) 306.70 (27)
Composition H
Proper motion (right ascension) [mas/yr] 10.37948584 (0.3) 9.597149685 (1) 10.379 (0.3) 13.9 12.0
Proper motion (declination) [mas/yr] 15.87363319 (0.2) 15.87400351 (0.5) 15.874 (0.2) 12.0 12.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.56 (0.03) 19.56 (0.03) 19.59 (0.03) 19.60 19.60 (0.03) 19.60 (0.03)
g magnitude 19.06 (0.01) 19.06 (0.01) 19.06 (0.04) 19.06 19.07 (0.04) 19.06 (0.04)
r magnitude 19.25 (0.01) 19.25 (0.01) 19.27 (0.02) 19.28 19.27 (0.02) 19.28 (0.02)
i magnitude 19.43 (0.02) 19.43 (0.02) 19.46 (0.03) 19.46 19.46 (0.03) 19.46 (0.03)
z magnitude 19.65 (0.08) 19.65 (0.08) 19.70 (0.08) 19.70 19.68 (0.08) 19.70 (0.08)
G magnitude 19.16 (0.03) 19.20 19.16 (0.004)
BP magnitude 19.17 (0.03) 19.17
RP magnitude 19.24 (0.07) 19.15
Pan g magnitude 19.06 (0.007)
Pan r magnitude 19.26 (0.007)
Pan i magnitude 19.46 (0.02)
Pan z magnitude 19.68 (0.02)
Pan y magnitude 19.69 (0.06)
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.