SDSS J153419.42+372557.2

All names: Gaia DR3 1375718878637792000, Gaia EDR3 1375718878637792000, SDSS J153419.41+372557.2, SDSSJ153419.42+372557.2, Gaia DR2 1375718878637792000, SDSS J153419.42+372557.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Geier 2020 MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006
Right ascension 15 34 19.41 (0.1) 15 34 19.42 15 34 19.42 15 34 19.41 (0.2) 15 34 19.42 (0.1) 15 34 19.42
Declination 37 25 57.21 (0.2) 37 25 57.25 37 25 57.20 37 25 57.21 (0.2) 37 25 57.31 (0.2) 37 25 57.28
Spectral type He-sdOB sdO sdO SDO
Effective temperature [K] 22397.0 40645.0 (2294)
log(g) [cgs] 6.30 5.17 (0.2)
Mass [M] 0.144
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.52 (0.2) 0.60 (0.3) 0.60 (0.3) 0.52 (0.2)
Distance [pc] 1920.63 (709) 1660.85 (705) 1660.78 (705) 1920.49 (709)
Composition
Proper motion (right ascension) [mas/yr] -6.899767608 (0.2) -7.251 (0.4) -7.251376918 (0.4) -6.9 (0.2) 1.5
Proper motion (declination) [mas/yr] -5.916579309 (0.2) -6.427 (0.5) -6.426827524 (0.5) -5.917 (0.2) -11.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.48 (0.02) 18.48 (0.02) 18.48 (0.02) 18.50 (0.03)
g magnitude 18.83 (0.009) 18.83 (0.009) 18.83 (0.009) 18.77 (0.02)
r magnitude 19.33 (0.01) 19.33 (0.01) 19.33 (0.01) 19.34 (0.02)
i magnitude 19.66 (0.02) 19.66 (0.02) 19.66 (0.02) 19.75 (0.03)
z magnitude 20.06 (0.09) 20.06 (0.09) 20.06 (0.09) 20.24 (0.1)
G magnitude 19.09 (0.02) 19.13 (0.004) 19.13 19.09 (0.003)
BP magnitude 18.94 (0.02) 18.85 (0.03) 18.85
RP magnitude 19.34 (0.06) 19.38 (0.05) 19.38
Pan g magnitude 18.93 (0.01) 18.93 (0.01)
Pan r magnitude 19.34 (0.01) 19.34 (0.01)
Pan i magnitude 19.73 (0.01) 19.73 (0.01)
Pan z magnitude 19.94 (0.04) 19.94 (0.04)
Pan y magnitude 19.76 (0.02) 19.76 (0.02)
E(B-V) 0.024

* 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.