SDSS J103123.08+204719.8

All names: SDSS J103123.08+204719.8, Gaia DR3 720813851503489152, SDSS J103123.09+204719.6, SDSS J103123.10+204719.6, GALEX J103123.1+204720, SDSS J103123.09+204719.8, Gaia DR2 720813847207984512, Gaia EDR3 720813851503489152

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 31 23.10 (0.1) 10 31 23.09 10 31 23.10 (0.2) 10 31 23.10 10 31 23.09 (0.1) 10 31 23.09
Declination 20 47 19.68 (0.08) 20 47 19.83 20 47 19.69 (0.1) 20 47 19.68 20 47 19.97 (0.08) 20 47 19.85
Spectral type DA DA DA DA DA
Effective temperature [K] 18248.0 19994.0 (678) 20956.0 (166)
log(g) [cgs] 7.86 7.93 (0.04) 7.93 (0.03)
Mass [M] 0.542 0.584 (0.03) 0.59 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0745
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 4.47 (0.1) 4.54 (0.2) 4.47 4.47 (0.1)
Distance [pc] 223.69 (5) 220.32 (8) 223.69 223.69 (5)
Composition H
Proper motion (right ascension) [mas/yr] 7.741789569 (0.1) 7.601506982 (0.3) 7.742 (0.1)
Proper motion (declination) [mas/yr] -17.98485956 (0.09) -17.89012331 (0.2) -17.985 (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 17.29 (0.009) 17.29 (0.009) 17.34 (0.02)
g magnitude 17.24 (0.005) 17.24 (0.005) 17.25 (0.01)
r magnitude 17.63 (0.006) 17.63 (0.006) 17.64 (0.03)
i magnitude 17.95 (0.008) 17.95 (0.008) 17.95 (0.02)
z magnitude 18.24 (0.02) 18.24 (0.02) 18.23 (0.03)
G magnitude 17.48 (0.006) 17.49 17.48 17.48 (0.003)
BP magnitude 17.40 (0.006) 17.38
RP magnitude 17.64 (0.01) 17.63
Pan g magnitude 17.30 (0.003)
Pan r magnitude 17.64 (0.003)
Pan i magnitude 17.96 (0.007)
Pan z magnitude 18.20 (0.01)
Pan y magnitude 18.36 (0.02)
E(B-V) 0.016

* 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.