SDSS J145811.90+012140.2

All names: SDSS J145811.90+012140.2, SDSSJ145811.90+012140.2, GALEX J145811.9+012140, Gaia EDR3 1153270668268806784, Gaia DR3 1153270668268806784, Gaia DR2 1153270668268806784

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Geier 2020 MWDD H MWDD HE Gaia DR2 Simbad Eisenstein et al. 2006
Right ascension 14 58 11.90 (0.2) 14 58 11.91 14 58 11.90 14 58 11.90 (0.3) 14 58 11.91 (0.2) 14 58 11.91
Declination 01 21 40.22 (0.2) 01 21 40.28 01 21 40.20 01 21 40.22 (0.2) 01 21 40.25 (0.2) 01 21 40.27
Spectral type sdO sdO sdO sdO SDO
Effective temperature [K] 22383.0 27545.0 78383.0 (7924)
log(g) [cgs] 6.76 6.95 5.09 (0.1)
Mass [M] 0.23 0.267
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.76 (0.3) -0.89 (0.4) -0.89 (0.4)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -3.122119353 (0.3) -2.774 (0.6) -2.774086597 (0.6) -3.122 (0.3) -1.2
Proper motion (declination) [mas/yr] -1.911198594 (0.3) -1.595 (0.6) -1.595344207 (0.6) -1.911 (0.3) 2.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.19 (0.01) 18.18 (0.01) 18.18 (0.01) 18.23 (0.03)
g magnitude 18.58 (0.008) 18.58 (0.008) 18.58 (0.008) 18.63 (0.02)
r magnitude 19.05 (0.01) 19.05 (0.01) 19.05 (0.01) 19.07 (0.02)
i magnitude 19.42 (0.02) 19.42 (0.02) 19.44 (0.02) 19.44 (0.02)
z magnitude 19.71 (0.09) 19.71 (0.09) 19.75 (0.09) 19.75 (0.09)
G magnitude 18.82 (0.02) 18.86 (0.004) 18.86 18.82 (0.004)
BP magnitude 18.68 (0.02) 18.69 (0.03) 18.69
RP magnitude 19.13 (0.05) 19.09 (0.04) 19.09
Pan g magnitude 18.66 (0.007) 18.66 (0.007)
Pan r magnitude 19.06 (0.008) 19.06 (0.008)
Pan i magnitude 19.46 (0.01) 19.46 (0.01)
Pan z magnitude 19.64 (0.03) 19.64 (0.03)
Pan y magnitude 19.70 (0.05) 19.70 (0.05)
E(B-V)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.