SDSS J151718.74+072609.2

All names: SDSS J151718.75+072609.2, SDSS J151718.75+072609.3, SDSS J151718.74+072609.2, PSO J151718.747+072609.206, Gaia DR2 1163490147812077696, SDSS J151718.75+072609.25

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 15 17 18.75 (0.4) 15 17 18.75 15 17 18.75
Declination 07 26 09.02 (0.4) 07 26 09.25 07 26 09.24
Spectral type DA+M4 DA+M4 DA
Effective temperature [K] 7570.0 15782.0 (455)
log(g) [cgs] 5.79 7.89 (0.1)
Mass [M☉] 0.025 0.557 (0.04)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1960
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] 1.95 (0.5)
Distance [pc] 513.01 (129)
Composition H
Proper motion (right ascension) [mas/yr] -3.9842028181 (0.8)
Proper motion (declination) [mas/yr] -14.8339293786 (0.8)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.30 (0.06) 20.30 (0.06) 20.23
g magnitude 19.61 (0.01) 19.61 (0.01) 19.59
r magnitude 19.82 (0.02) 19.82 (0.02) 19.85
i magnitude 19.90 (0.02) 19.90 (0.02) 19.86
z magnitude 19.63 (0.07) 19.63 (0.07) 19.59
G magnitude 19.70
BP magnitude 19.81
RP magnitude 19.27
Pan g magnitude 19.63 (0.01)
Pan r magnitude 19.77 (0.03)
Pan i magnitude 19.74 (0.01)
Pan z magnitude 19.70 (0.01)
Pan y magnitude 19.47 (0.04)

* 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.