SDSS J173824.62+581801.6

All names: SDSS J173824.62+581801.7, Gaia DR2 1422532922652641408, PSO J173824.643+581801.711, SDSS J173824.62+581801.6

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 SDSS DR12 Simbad Eisenstein et al. 2006
Right ascension 17 38 24.63 (0.2) 17 38 24.63 17 38 24.63 (41) 17 38 24.63
Declination 58 18 01.62 (0.2) 58 18 01.67 58 18 01.67 (40) 58 18 01.67
Spectral type sdO sdO SDO
Effective temperature [K] 25571.0 98246.0 (4022)
log(g) [cgs] 7.16 5.05 (0.07)
Mass [M☉] 0.326
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0154
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.17 (0.2)
Distance [pc] 854.53 (122)
Composition
Proper motion (right ascension) [mas/yr] 3.727167702 (0.4) 1.0 (3) 5.9
Proper motion (declination) [mas/yr] -4.371864967 (0.4) -4.0 (3) -4.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.93 (0.01) 17.91 (0.03) 17.92 (0.03)
g magnitude 18.35 (0.007) 18.36 (0.02) 18.35 (0.02)
r magnitude 18.85 (0.01) 18.85 (0.01) 18.85 (0.01)
i magnitude 19.18 (0.02) 19.19 (0.02) 19.18 (0.02)
z magnitude 19.55 (0.07) 19.58 (0.07) 19.58 (0.07)
G magnitude 18.62
BP magnitude 18.38
RP magnitude 18.89
Pan g magnitude 18.41 (0.007)
Pan r magnitude 18.85 (0.005)
Pan i magnitude 19.20 (0.006)
Pan z magnitude 19.45 (0.03)
Pan y magnitude 19.62 (0.07)

* 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.