CSO 750

All names: SDSS J152356.57+542256.8, WD 1522+545, USNO-B1.0 1443-00241905, PSO J152356.591+542257.022, Gaia DR2 1599573467458776704, SDSS J152356.57+542256.87

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2016 SDSS DR12 Simbad
Right ascension 15 23 56.57 (0.1) 15 23 56.59 15 23 56.59
Declination 54 22 57.00 (0.2) 54 22 56.79 54 22 56.77
Spectral type DA DA DA
Effective temperature [K] 20610.0 21694.0 (136)
log(g) [cgs] 7.78 7.86 (0.02)
Mass [M☉] 0.51 0.5579999999999999 (0.009)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0372
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] 3.48 (0.1)
Distance [pc] 287.37 (10)
Composition H
Proper motion (right ascension) [mas/yr] -10.1507159354 (0.2) -16.0
Proper motion (declination) [mas/yr] 12.7182896703 (0.3) 16.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.30
V magnitude
R magnitude 17.70
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.45 (0.02) 17.42 (0.009) 17.43
g magnitude 17.47 (0.01) 17.45 (0.005) 17.47
r magnitude 17.89 (0.01) 17.87 (0.006) 17.89
i magnitude 18.18 (0.01) 18.17 (0.009) 18.17
z magnitude 18.50 (0.03) 18.47 (0.03) 18.50
G magnitude 17.71
BP magnitude 17.55
RP magnitude 17.90
Pan g magnitude 17.54 (0.005)
Pan r magnitude 17.88 (0.004)
Pan i magnitude 18.20 (0.006)
Pan z magnitude 18.47 (0.008)
Pan y magnitude 18.68 (0.03)

* 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.