SDSS J114829.00+482731.2

All names: WD 1145+487, GALEX J114829.0+482731, Gaia DR2 787574612699038208, SDSS J114829.00+482731.2, SDSS J114828.99+482731.2, Gaia EDR3 787574617001352832, Gaia DR3 787574617001352832, SDSS J114828.99+482731.1

Parameter Unit Gaia EDR3 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 48 29.00 (0.07) 11 48 28.99 11 48 29.00 (0.1) 11 48 29.00 11 48 29.00 11 48 28.99 (0.07) 11 48 28.99 11 48 28.99
Declination 48 27 31.22 (0.09) 48 27 31.18 48 27 31.22 (0.1) 48 27 31.21 48 27 31.22 48 27 31.24 (0.09) 48 27 25.56 48 27 31.23
Spectral type DAH DA DA DAH DA: DAP DAP1.8 DAH DAH
Effective temperature [K] 28966.7 (6860) 3961.0 27500.0 28992.0 (1394) 89520.0 (5406)
log(g) [cgs] 8.97 (0) 9.37 8.00 (0) 8.92 (0.05) 10.00 (0.008)
Mass [M] 1.194045143254163 (0.02) 1.319 1.17 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 4.1720
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] 4.75 (0.1) 5.04 (0.2) 4.75 4.75 (0.1)
Distance [pc] 210.64 (7) 198.34 (8) 210.64 210.64 (7)
Composition H H
Proper motion (right ascension) [mas/yr] 5.607208147 (0.08) 5.762158353 (0.2) 5.607 (0.08)
Proper motion (declination) [mas/yr] -0.984973399 (0.1) -1.276080787 (0.2) -0.985 (0.1)
Variability
Magnetic yes yes yes yes
Bd [MG] 34.92541536692062 32.47 (7) 32.47 (7)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.18 (0.02) 18.18 (0.03) 17.88 17.87 (0.02)
g magnitude 18.72 (0.02) 18.72 (0.02) 18.16 18.16 (0.03)
r magnitude 24.80 (4) 24.80 (4) 18.58 18.59 (0.06)
i magnitude 24.36 (4) 24.36 (4) 18.84 18.85 (0.04)
z magnitude 22.83 (3) 22.83 (3) 19.18 19.19 (0.05)
G magnitude 18.33 (0.01) 18.36 18.33 18.33 (0.003)
BP magnitude 18.19 (0.01) 18.11
RP magnitude 18.58 (0.02) 18.53
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.014

* 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.