WD 0916+111

All names: USNO-B1.0 1009-00171593, J0918+1057, NLTT 21430, LSPM J0918+1057, Gaia DR3 592605431290049152, Gaia DR2 592605431290049152, SDSS J091837.87+105757.7, WD 0916+111, Gaia EDR3 592605431290049152, WDJ091837.94+105758.40, SDSS J091837.88+105757.8, LP 487-25

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 09 18 37.64 (0.1) 09 18 37.65 (0.2) 09 18 37.64 09 18 37.94 (0.1) 09 18 37.65 09 18 42.26
Declination 10 57 55.24 (0.1) 10 57 55.34 (0.2) 10 57 55.24 10 57 58.40 (0.1) 10 57 55.34 10 58 19.92
Spectral type DC DC DC DC DA DC DC
Effective temperature [K] 5103.0 (22) 5151.0 (22) 5123.0 4811.0 5227.0 (61)
log(g) [cgs] 7.91 (0.01) 7.94 (0.02) 7.90 7.68 7.99 (0.03)
Mass [M] 0.529 (0.01) 0.548 (0.01) 0.524 0.396 0.576 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 4.1500 3.8700 3.2720
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] 19.47 (0.2) 19.24 (0.2) 19.24 (0.2) 19.47 19.47 (0.2) 19.24 (0.2)
Distance [pc] 51.35 (0.4) 51.98 (0.6) 51.97 (0.6) 51.35 51.35 (0.4) 51.97 (0.6)
Composition H H
Proper motion (right ascension) [mas/yr] -281.3064278 (0.2) -281.4238829 (0.4) -281.306 (0.2) -281.4238829
Proper motion (declination) [mas/yr] -197.7044969 (0.2) -197.6925512 (0.4) -197.704 (0.2) -197.6925512
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 18.60
V magnitude
R magnitude 17.90
I magnitude
J magnitude 16.99 (0.02)
H magnitude 16.71 (0.02)
K magnitude 16.61 (0.03)
u magnitude 20.38 (0.06) 20.37 (0.06) 20.37 (0.06)
g magnitude 18.84 (0.009) 18.84 (0.009)
r magnitude 18.16 (0.007) 18.16 (0.007)
i magnitude 17.89 (0.007) 17.89 (0.007)
z magnitude 17.84 (0.02) 17.84 (0.02)
G magnitude 18.19 (0.02) 18.22 18.19 18.19 (0.003) 18.22
BP magnitude 18.65 (0.02) 18.71 18.71
RP magnitude 17.60 (0.01) 17.59 17.59
Pan g magnitude 18.74 (0.008) 18.74 (0.009)
Pan r magnitude 18.15 (0.005) 18.15 (0.004)
Pan i magnitude 17.94 (0.004) 17.94 (0.004)
Pan z magnitude 17.87 (0.004) 17.87 (0.005)
Pan y magnitude 17.81 (0.01) 17.81 (0.01)
E(B-V) 0.001

* 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.