SDSS J115400.60+220239.3

All names: SDSS J115400.60+220239.2, Gaia DR3 4000651745759703168, Gaia DR2 4000651741463852288, SDSS J115400.60+220239.30, Gaia EDR3 4000651745759703168, SDSS J115400.60+220239.3, GALEX J115400.6+220239

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 11 54 00.60 (0.3) 11 54 00.61 11 54 00.60 (0.4) 11 54 00.60 11 54 00.61 (0.3)
Declination 22 02 38.79 (0.4) 22 02 39.29 22 02 38.81 (0.3) 22 02 38.79 22 02 39.45 (0.4)
Spectral type DC DC DC DA DC DA
Effective temperature [K] 7257.0 7014.0 7272.0 (140) 8011.0 (528)
log(g) [cgs] 8.20 8.11 8.00 (0) 8.40 (0.1)
Mass [M] 0.719 0.641 0.849 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 1.9300 1.8680
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 7.46 (0.5) 7.45 (0.6) 7.46 7.46 (0.5)
Distance [pc] 134.08 (8) 134.31 (11) 134.08 134.08 (8)
Composition
Proper motion (right ascension) [mas/yr] -3.967983512 (0.4) -3.535258905 (0.7) -3.968 (0.4)
Proper motion (declination) [mas/yr] -41.34731137 (0.4) -41.19267205 (0.6) -41.347 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.02 (0.04) 20.01 (0.06) 20.02 (0.04)
g magnitude 19.50 (0.01) 19.50 (0.06) 19.50 (0.01)
r magnitude 19.26 (0.01) 19.25 (0.02) 19.25 (0.01)
i magnitude 19.23 (0.02) 19.21 (0.03) 19.23 (0.02)
z magnitude 19.18 (0.06) 19.19 (0.07) 19.18 (0.06)
G magnitude 19.24 (0.04) 19.28 19.24 19.24 (0.004)
BP magnitude 19.37 (0.04) 19.36
RP magnitude 18.97 (0.04) 18.98
Pan g magnitude 19.39 (0.01)
Pan r magnitude 19.26 (0.01)
Pan i magnitude 19.27 (0.02)
Pan z magnitude 19.29 (0.02)
Pan y magnitude 19.34 (0.03)
E(B-V) 0.005

* 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.