SDSS J152938.72+182208.6

All names: SDSS J152938.71+182208.2, GALEX J152938.7+182208, Gaia EDR3 1209598339721988608, SDSS J152938.72+182208.6, Gaia DR2 1209598339721988608, Gaia DR3 1209598339721988608, SDSS J152938.72+182208.7, SDSS J152938.72+182208.66

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 15 29 38.69 (0.1) 15 29 38.72 15 29 38.69 (0.2) 15 29 38.69 15 29 38.74 (0.1)
Declination 18 22 08.07 (0.1) 18 22 08.64 18 22 08.10 (0.1) 18 22 08.07 18 22 08.95 (0.1)
Spectral type DC DC DC DC DC DC
Effective temperature [K] 9439.0 9340.0 9200.0 (1000) 9670.0 (354)
log(g) [cgs] 8.08 8.01 8.00 (0) 8.05 (0.07)
Mass [M] 0.648 0.586 0.612 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.7883 0.7559
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 6.81 (0.2) 6.75 (0.2) 6.81 6.81 (0.2)
Distance [pc] 146.89 (3) 148.15 (4) 146.89 146.89 (3)
Composition
Proper motion (right ascension) [mas/yr] -44.07510411 (0.2) -43.91164122 (0.3) -44.075 (0.2)
Proper motion (declination) [mas/yr] -54.81949017 (0.2) -54.8269453 (0.3) -54.819 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.46 (0.02) 18.46 (0.02) 18.46 (0.02)
g magnitude 18.32 (0.007) 18.32 (0.01) 18.32 (0.007)
r magnitude 18.39 (0.008) 18.39 (0.01) 18.39 (0.008)
i magnitude 18.54 (0.01) 18.54 (0.01) 18.54 (0.01)
z magnitude 18.65 (0.03) 18.65 (0.03) 18.65 (0.03)
G magnitude 18.33 (0.01) 18.36 18.33 18.33 (0.003)
BP magnitude 18.41 (0.01) 18.39
RP magnitude 18.29 (0.02) 18.27
Pan g magnitude 18.36 (0.003)
Pan r magnitude 18.41 (0.007)
Pan i magnitude 18.53 (0.008)
Pan z magnitude 18.69 (0.01)
Pan y magnitude 18.73 (0.03)
E(B-V) 0.036

* 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.