WD 1135+664

All names: SDSS J113751.54+661001.6, Gaia EDR3 1057010349402555520, SDSS J113751.53+661001.5, Gaia DR2 1057010349402555520, SDSS J113751.56+661001.7, Gaia DR3 1057010349402555520, SDSS J113751.45+661002.1, WD 1135+664

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE 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 11 37 51.43 (0.1) 11 37 51.54 11 37 51.43 (0.2) 11 37 51.43 11 37 51.55 (0.1) 11 37 51.54 11 37 50.38 11 37 51.56
Declination 66 10 02.14 (0.1) 66 10 01.64 66 10 02.13 (0.1) 66 10 02.14 66 10 01.57 (0.1) 66 10 01.57 66 09 59.40 66 10 01.66
Spectral type DB DB DB DB DB4.4 DC DB
Effective temperature [K] 10857.0 11161.0 (116) 11407.0 (420) 11576.0 (226) 11390.0 (242)
log(g) [cgs] 7.87 8.00 (0) 7.96 (0.06) 8.34 (0.3) 8.42 (0.3)
Mass [M] 0.507 0.558 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.4205
log(H/He) <-5.69
log(C/He)
log(Ca/He) <-10.47
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] 4.21 (0.2) 4.24 (0.2) 4.21 4.21 (0.2)
Distance [pc] 237.77 (9) 235.96 (10) 221.00 237.77 237.77 (9)
Composition He
Proper motion (right ascension) [mas/yr] -44.28564862 (0.1) -44.33392508 (0.3) -44.286 (0.1) -41.9
Proper motion (declination) [mas/yr] 35.81781143 (0.2) 35.57419733 (0.3) 35.818 (0.2) 38.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.77 (0.02) 18.77 (0.02) 18.75 (0.02) 18.75 18.78 (0.02)
g magnitude 18.69 (0.008) 18.69 (0.008) 18.70 (0.04) 18.71 18.71 (0.04)
r magnitude 18.86 (0.01) 18.86 (0.01) 18.85 (0.02) 18.85 18.85 (0.02)
i magnitude 19.03 (0.02) 19.03 (0.02) 19.01 (0.02) 19.02 19.02 (0.02)
z magnitude 19.34 (0.07) 19.34 (0.07) 19.33 (0.06) 19.34 19.33 (0.06)
G magnitude 18.73 (0.02) 18.77 18.73 18.73 (0.003)
BP magnitude 18.76 (0.02) 18.74
RP magnitude 18.76 (0.03) 18.70
Pan g magnitude 18.70 (0.01)
Pan r magnitude 18.83 (0.007)
Pan i magnitude 19.02 (0.009)
Pan z magnitude 19.19 (0.02)
Pan y magnitude 19.24 (0.03)
E(B-V) 0.017

* 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.