SDSS J230752.92-000207.4

All names: Gaia DR3 2651256614304360576, Gaia EDR3 2651256614304360576, LAMOST J230752.91-000207.5, GALEX J230752.9-000206, SDSS J230752.92-000207.5, SDSS J230752.93-000207.4, SDSS J230752.92-000207.4, Gaia DR2 2651256614304360576

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 07 52.94 (0.3) 23 07 52.93 23 07 52.94 (0.4) 23 07 52.92 (0.3) 23 07 52.93 23 07 52.92
Declination -00 02 07.43 (0.2) -00 02 07.45 -00 02 07.43 (0.3) -00 02 07.46 (0.2) -00 02 07.43 -00 02 07.52
Spectral type sdB sdB DABZH SDB DABZH: sdOB
Effective temperature [K] 12616.0 13094.0 16772.0 (251) 16227.0 (308)
log(g) [cgs] 8.22 8.22 8.44 (0.1) 8.38 (0.2)
Mass [M] 0.741 0.722
log(Luminosity) [L]
Cooling age [Gyr] 0.4486 0.4274
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.08 (0.3) 3.48 (0.4) 3.08 (0.3)
Distance [pc] 324.82 (32) 287.37 (35) 324.81 (32)
Composition
Proper motion (right ascension) [mas/yr] 13.45458191 (0.3) 13.45763827 (0.6) 13.455 (0.3) 5.5
Proper motion (declination) [mas/yr] 2.278626328 (0.3) 1.57552211 (0.7) 2.279 (0.3) 2.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.02 (0.02) 19.02 (0.02) 19.01 (0.02) 19.02 (0.02)
g magnitude 19.07 (0.01) 19.07 (0.01) 19.09 (0.01) 19.10 (0.01)
r magnitude 19.33 (0.01) 19.33 (0.01) 19.32 (0.02) 19.31 (0.02)
i magnitude 19.57 (0.02) 19.57 (0.02) 19.52 (0.02) 19.51 (0.02)
z magnitude 19.67 (0.07) 19.67 (0.07) 19.84 (0.08) 19.84 (0.08)
G magnitude 19.21 (0.04) 19.24 19.21 (0.005)
BP magnitude 19.18 (0.04) 19.18
RP magnitude 19.39 (0.07) 19.15
Pan g magnitude 19.12 (0.01)
Pan r magnitude 19.35 (0.008)
Pan i magnitude 19.59 (0.008)
Pan z magnitude 19.75 (0.01)
Pan y magnitude 19.91 (0.06)
E(B-V) 0.048

* 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.