SDSS J114917.23+300016.1

All names: SDSS J114917.23+300016.0, SDSS J114917.23+300016.1, Gaia EDR3 4020400413408093056, GALEX J114917.2+300016, Gaia DR3 4020400413408093056, SDSS J114917.22+300016.0, Gaia DR2 4020400413408093056

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 49 17.23 (0.2) 11 49 17.23 11 49 17.23 (0.3) 11 49 17.23 11 49 17.23 (0.2) 11 49 17.23
Declination 30 00 15.87 (0.1) 30 00 16.07 30 00 15.88 (0.2) 30 00 15.87 30 00 16.18 (0.1) 30 00 16.08
Spectral type DA DAH DA DAH DAH DA
Effective temperature [K] 10254.7 (147) 9774.0 10108.0 (405) 9927.0 (66)
log(g) [cgs] 7.36 (0.2) 7.29 7.50 (0.1) 8.69 (0.07)
Mass [M☉] 0.3080799605072324 (0.1) 0.286 0.356 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.3230
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] 3.46 (0.2) 3.14 (0.5) 3.46 3.46 (0.2)
Distance [pc] 289.11 (18) 318.11 (47) 289.11 289.11 (18)
Composition H
Proper motion (right ascension) [mas/yr] 2.88482629 (0.2) 3.060947486 (0.5) 2.885 (0.2)
Proper motion (declination) [mas/yr] -19.15213918 (0.2) -18.96044792 (0.4) -19.152 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.24 (0.02) 19.23 (0.02) 19.21 (0.03)
g magnitude 18.76 (0.008) 18.76 (0.008) 18.77 (0.02)
r magnitude 18.84 (0.01) 18.84 (0.01) 18.84 (0.02)
i magnitude 18.95 (0.01) 18.95 (0.01) 18.97 (0.02)
z magnitude 19.12 (0.05) 19.12 (0.05) 19.14 (0.05)
G magnitude 18.76 (0.03) 18.80 18.76 18.76 (0.004)
BP magnitude 18.86 (0.03) 18.86
RP magnitude 18.67 (0.05) 18.66
Pan g magnitude 18.75 (0.009)
Pan r magnitude 18.85 (0.003)
Pan i magnitude 19.02 (0.02)
Pan z magnitude 19.18 (0.01)
Pan y magnitude 19.24 (0.02)
E(B-V) 0.020

* 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.