SDSS J011830.48+215902.2

All names: Gaia EDR3 2790730007885695232, SDSS J011830.48+215902.2, Gaia DR2 2790730007885695232, SDSS J011830.48+215902.21, Gaia DR3 2790730007885695232

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 01 18 30.49 (0.3) 01 18 30.49 01 18 30.49 (0.4) 01 18 30.48 (0.3)
Declination 21 59 02.14 (0.2) 21 59 02.26 21 59 02.14 (0.3) 21 59 02.18 (0.2)
Spectral type sdA sdA
Effective temperature [K] 6868.0 (51)
log(g) [cgs] 5.67 (0.2)
Mass [M☉] 0.14525 (0.0006)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.21 (0.3) -0.01 (0.5)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 2.377234829 (0.3) 2.218117252 (0.8) 2.377 (0.3)
Proper motion (declination) [mas/yr] -2.337744541 (0.2) -1.855167023 (0.6) -2.338 (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 20.20 (0.04) 20.23 (0.04) 20.23 (0.04)
g magnitude 19.31 (0.01) 19.33 (0.02) 19.33 (0.02)
r magnitude 19.05 (0.01) 19.04 (0.02) 19.04 (0.02)
i magnitude 18.89 (0.01) 18.87 (0.02) 18.87 (0.02)
z magnitude 18.91 (0.04) 18.89 (0.04) 18.89 (0.04)
G magnitude 19.04 (0.04) 19.07 19.04 (0.004)
BP magnitude 19.30 (0.04) 19.35
RP magnitude 18.65 (0.04) 18.56
Pan g magnitude 19.28 (0.01)
Pan r magnitude 19.04 (0.005)
Pan i magnitude 18.94 (0.007)
Pan z magnitude 18.92 (0.02)
Pan y magnitude 18.92 (0.02)
E(B-V)

* 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.