WD 1347+029

All names: SDSS J134956.22+024309.40, GALEX J134956.1+024309, Gaia DR2 3665065605662377088, SDSS J134956.22+024309.3, J1349+0243, Gaia EDR3 3665065605662377088, WD 1347+029, SDSS J134956.21+024309.2, SDSS J134956.22+024309.4, Gaia DR3 3665065605662377088

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Coutu et al. 2019 Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 49 56.19 (0.2) 13 49 56.22 13 49 56.22 13 49 56.19 (0.2) 13 49 56.19 13 49 56.22 (0.1) 13 49 56.22 13 49 56.26 13 49 56.22
Declination 02 43 09.28 (0.1) 02 43 09.36 02 43 09.36 02 43 09.29 (0.1) 02 43 09.28 02 43 09.35 (0.1) 02 43 09.34 02 43 02.28 02 43 09.42
Spectral type DBZ DB DBZH DBZA DBZA DBZH: DB
Effective temperature [K] 14253.0 13964.0 13408.0 (863) 14072.0 (90) 13536.0 (537) 15277.0 (241) 14626.0 (170)
log(g) [cgs] 8.05 8.11 8.06 8.00 (0) 8.10 (0.06) 8.67 (0.2) 8.55 (0.1)
Mass [M] 0.617 0.653 0.6251 0.647 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.3100
log(H/He) -5.655 <-6.0969 -5.47 (1)
log(C/He)
log(Ca/He) -8.0713 (0.2) -8.01 (0.3)
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] 4.45 (0.2) 4.39 4.39 (0.2) 4.45 4.45 (0.2)
Distance [pc] 224.64 (8) 227.96 (11) 227.96 (11) 244.00 224.64 224.64 (8)
Composition He
Proper motion (right ascension) [mas/yr] -29.57115101 (0.2) -29.17897975 (0.4) -29.571 (0.2) -22.8
Proper motion (declination) [mas/yr] -4.152512423 (0.1) -4.50709011 (0.3) -4.153 (0.1) -4.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.27 (0.01) 18.27 (0.01) 18.25 (0.02) 18.27 18.26 (0.02)
g magnitude 18.30 (0.007) 18.30 (0.007) 18.33 (0.02) 18.33 18.33 (0.02)
r magnitude 18.53 (0.009) 18.53 (0.009) 18.54 (0.02) 18.54 18.55 (0.02)
i magnitude 18.76 (0.01) 18.75 (0.01) 18.76 (0.02) 18.76 18.77 (0.02)
z magnitude 19.04 (0.06) 19.04 (0.06) 19.06 (0.07) 19.06 19.06 (0.07)
G magnitude 18.41 (0.01) 18.45 18.41 18.41 (0.003)
BP magnitude 18.37 (0.01) 18.37
RP magnitude 18.53 (0.02) 18.53
Pan g magnitude 18.34 (0.005)
Pan r magnitude 18.56 (0.007)
Pan i magnitude 18.78 (0.006)
Pan z magnitude 19.01 (0.01)
Pan y magnitude 19.06 (0.03)
E(B-V) 0.025

* 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.