SDSS J231004.23+123121.8

All names: Gaia DR3 2811847473021796864, SDSS J231004.23+123121.88, Gaia EDR3 2811847473021796864, Gaia DR2 2811847473021796864, SDSS J231004.23+123121.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 23 10 04.23 (0.2) 23 10 04.23 23 10 04.23 (0.4) 23 10 04.23 (0.2)
Declination 12 31 21.83 (0.2) 12 31 21.85 12 31 21.83 (0.3) 12 31 21.83 (0.2)
Spectral type sdA sdA
Effective temperature [K] 7867.0 (40)
log(g) [cgs] 5.76 (0.1)
Mass [M☉] 0.1511 (0.0004)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.18 (0.3) -0.20 (0.5)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 0.802597936 (0.3) 1.424727904 (0.8) 0.803 (0.3)
Proper motion (declination) [mas/yr] -0.105121578 (0.3) 0.13125574 (0.7) -0.105 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.44 (0.07) 20.38 (0.07) 20.38 (0.07)
g magnitude 19.37 (0.01) 19.39 (0.02) 19.39 (0.02)
r magnitude 19.22 (0.02) 19.23 (0.02) 19.23 (0.02)
i magnitude 19.11 (0.02) 19.12 (0.03) 19.12 (0.03)
z magnitude 19.06 (0.06) 19.08 (0.06) 19.08 (0.06)
G magnitude 19.20 (0.05) 19.23 19.20 (0.004)
BP magnitude 19.43 (0.05) 19.42
RP magnitude 18.94 (0.05) 18.82
Pan g magnitude 19.39 (0.01)
Pan r magnitude 19.21 (0.01)
Pan i magnitude 19.18 (0.01)
Pan z magnitude 19.20 (0.02)
Pan y magnitude 19.17 (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.