LSPM J1534+0711

All names: SDSS J153418.29+071148.7, WD 1531+073, NLTT 40572, PSO J153418.368+071149.808, Gaia DR2 4430790968108076544, SDSS J153418.29+071148.77, WDJ153418.26+071148.33

Parameter Unit MWDD H MWDD HE Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad Gentile Fusillo et al. 2018
Right ascension 15 34 18.38 (0.2) 15 34 18.29 15 34 18.26 15 34 18.38
Declination 07 11 50.12 (0.2) 07 11 48.75 07 11 48.47 07 11 50.12
Spectral type DC DC DC DA
Effective temperature [K] 5144.0 4830.0 8000.0 (1000)
log(g) [cgs] 7.97 7.75 8.00 (0)
Mass [M] 0.563 0.431
log(Luminosity) [L]
Cooling age [Gyr] 4.5650 3.7680
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 16.98 (0.2) 16.98 (0.2)
Distance [pc] 58.89 (0.8) 58.89 (0.8)
Composition
Proper motion (right ascension) [mas/yr] 120.480531372 (0.4) 122.0 120.480531372
Proper motion (declination) [mas/yr] 115.184282342 (0.4) 124.0 115.184282343
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.60
V magnitude
R magnitude 18.40
I magnitude
J magnitude 17.44
H magnitude 17.09
K magnitude 17.06
u magnitude 20.57 (0.05) 20.57 (0.05) 20.58 20.62 (0.05)
g magnitude 19.15 (0.01) 19.15 (0.01) 19.14 19.16 (0.01)
r magnitude 18.50 (0.01) 18.50 (0.009) 18.50 18.50 (0.008)
i magnitude 18.26 (0.01) 18.26 (0.01) 18.25 18.27 (0.009)
z magnitude 18.16 (0.02) 18.16 (0.02) 18.16 18.18 (0.02)
G magnitude 18.57 18.57
BP magnitude 19.06 19.06
RP magnitude 17.98 17.98
Pan g magnitude 19.06 (0.005)
Pan r magnitude 18.50 (0.004)
Pan i magnitude 18.29 (0.004)
Pan z magnitude 18.20 (0.008)
Pan y magnitude 18.16 (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.