SDSS J153231.95+204604.9

All names: Gaia DR2 1211236822501204096, Gaia DR3 1211236822501204096, SDSS J153231.95+204604.98, Gaia EDR3 1211236822501204096, GALEX J153231.9+204605, SDSS J153231.94+204605.0, SDSSJ153231.95+204605.0, SDSS J153231.95+204604.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Geier 2020 Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 15 32 31.94 (0.05) 15 32 31.95 15 32 31.95 15 32 31.94 (0.08) 15 32 31.95 (0.05)
Declination 20 46 05.00 (0.05) 20 46 05.00 20 46 05.00 20 46 05.00 (0.08) 20 46 05.06 (0.05)
Spectral type sdB DAB DAB
Effective temperature [K] 28630.0 (1391) 32791.0 (171)
log(g) [cgs] 5.07 (0.2) 5.57 (0.03)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.24 (0.08) 0.27 (0.1) 0.27 (0.1) 0.24 (0.08)
Distance [pc] 4142.60 (1420) 3660.32 (1444) 3660.00 (1444) 4142.50 (1421)
Composition
Proper motion (right ascension) [mas/yr] -7.32055477 (0.09) -7.364 (0.2) -7.364065636 (0.2) -7.321 (0.09)
Proper motion (declination) [mas/yr] -3.841983748 (0.09) -3.88 (0.2) -3.880227408 (0.2) -3.842 (0.09)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.27 (0.009) 17.27 (0.009) 17.25 (0.01) 17.27 (0.009)
g magnitude 17.26 (0.005) 17.26 (0.005) 17.28 (0.01) 17.26 (0.005)
r magnitude 17.48 (0.006) 17.48 (0.006) 17.49 (0.01) 17.48 (0.006)
i magnitude 17.62 (0.007) 17.62 (0.007) 17.63 (0.01) 17.62 (0.007)
z magnitude 17.78 (0.02) 17.78 (0.02) 17.78 (0.02) 17.78 (0.02)
G magnitude 17.34 (0.006) 17.36 (0.001) 17.36 17.34 (0.003)
BP magnitude 17.33 (0.006) 17.30 (0.007) 17.30
RP magnitude 17.32 (0.008) 17.30 (0.008) 17.30
Pan g magnitude 17.30 (0.005) 17.30 (0.005)
Pan r magnitude 17.49 (0.003) 17.49 (0.003)
Pan i magnitude 17.65 (0.004) 17.65 (0.004)
Pan z magnitude 17.76 (0.006) 17.76 (0.006)
Pan y magnitude 17.84 (0.01) 17.84 (0.01)
E(B-V) 0.052

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.