LBQS 1241+0839

All names: SDSS J124421.44+082305.6, LBQS 1241+0839, WD 1241+086, PSO J124421.451+082305.737, Gaia DR2 3710732244870531968, SDSS J124421.44+082305.60

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 12 44 21.43 (0.08) 12 44 21.45 12 44 21.45
Declination 08 23 05.48 (0.05) 08 23 06.17 08 23 06.17
Spectral type DA DA DA
Effective temperature [K] 15785.0 18913.0 (66)
log(g) [cgs] 7.91 8.11 (0.01)
Mass [M☉] 0.5660000000000001 0.6779999999999999 (0.005)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1445
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] 5.88 (0.1)
Distance [pc] 170.02 (3)
Composition H
Proper motion (right ascension) [mas/yr] -18.099403706 (0.2) -20.0
Proper motion (declination) [mas/yr] -57.9160323508 (0.1) -62.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.65
H magnitude 17.74
K magnitude 17.90
u magnitude 17.22 (0.02) 17.23 (0.009) 17.23
g magnitude 17.08 (0.02) 17.07 (0.004) 17.07
r magnitude 17.40 (0.02) 17.40 (0.006) 17.40
i magnitude 17.67 (0.01) 17.66 (0.007) 17.66
z magnitude 17.95 (0.03) 17.95 (0.02) 17.95
G magnitude 17.26
BP magnitude 17.16
RP magnitude 17.37
Pan g magnitude 17.11 (0.005)
Pan r magnitude 17.40 (0.006)
Pan i magnitude 17.68 (0.007)
Pan z magnitude 17.92 (0.005)
Pan y magnitude 18.10 (0.01)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.