SDSS J115149.92+452729.8

All names: LSPM J1151+4527, WD 1149+457, SDSS J115149.91+452729.8, J1151+4527, SDSS J115149.82+452730.3, Gaia DR3 773341881353587968, SDSS J115149.92+452729.8, GALEX J115149.9+452731, USNO-B1.0 1354-00230513, Gaia EDR3 773341881353587968, Gaia DR2 773341881353587968

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 51 49.73 (0.05) 11 51 49.92 11 51 49.97 11 51 49.73 (0.06) 11 51 49.73 11 51 49.97 (0.05) 11 51 49.58 11 51 49.92
Declination 45 27 30.69 (0.09) 45 27 29.83 45 27 29.53 45 27 30.65 (0.1) 45 27 30.69 45 27 29.53 (0.09) 45 27 24.84 45 27 29.84
Spectral type DQ DQ DQ DQ DQ5.7 DQ DQ
Effective temperature [K] 8698.0 (208) 8829.0 9154.0 (166) 10190.0 (103)
log(g) [cgs] 7.88 8.00 (0) 8.00 (0.03) 9.28 (0.5)
Mass [M] 0.5089 0.575 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.7670
log(H/He)
log(C/He) -4.8367 (0.06) -4.75 (0.04)
log(Ca/He)
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] 9.34 (0.1) 9.40 9.40 (0.1) 9.34 9.34 (0.1)
Distance [pc] 107.03 (1) 106.37 (2) 106.37 (2) 107.03 107.03 (1)
Composition He He
Proper motion (right ascension) [mas/yr] -162.3255373 (0.07) -162.2430139 (0.1) -162.326 (0.07)
Proper motion (declination) [mas/yr] 72.30556029 (0.1) 72.1942478 (0.2) 72.306 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.30
V magnitude
R magnitude 17.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.01 (0.01) 18.00 (0.01) 17.96 (0.03)
g magnitude 17.80 (0.005) 17.80 (0.005) 17.80 (0.02)
r magnitude 17.86 (0.006) 17.86 (0.006) 17.85 (0.04)
i magnitude 17.98 (0.008) 17.98 (0.008) 17.98 (0.02)
z magnitude 18.12 (0.02) 18.12 (0.02) 18.13 (0.02)
G magnitude 17.80 (0.008) 17.83 17.80 17.80 (0.003)
BP magnitude 17.85 (0.008) 17.79
RP magnitude 17.70 (0.01) 17.66
Pan g magnitude 17.84 (0.005)
Pan r magnitude 17.90 (0.007)
Pan i magnitude 18.00 (0.003)
Pan z magnitude 18.16 (0.01)
Pan y magnitude 18.28 (0.02)
E(B-V) 0.006

* 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.