Gaia DR2 2844308831549635840

All names: WDJ231223.05+252911.62, SDSS J231223.09+252910.6, Gaia DR3 2844308831549635840, LSPM J2312+2529S, WDJ231223.05+252911.61, SDSS J231223.08+252910.6, USNO-B1.0 1154-00564257, Gaia EDR3 2844308831549635840, Gaia DR2 2844308831549635840

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 23 12 23.17 (0.2) 23 12 23.16 23 12 23.17 23 12 23.05 (0.2) 23 12 23.16
Declination 25 29 08.28 (0.2) 25 29 08.39 25 29 08.28 25 29 11.62 (0.2) 25 29 08.39
Spectral type DA DA
Effective temperature [K] 5022.0 4700.0 4492.0 (88)
log(g) [cgs] 7.97 7.75 7.54 (0.06)
Mass [M] 0.561 0.426 0.339 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 5.1860 3.9820
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.77 (0.3) 13.06 (0.4) 12.77 12.77 (0.3) 13.06 (0.4)
Distance [pc] 78.34 (2) 76.58 (2) 78.34 78.34 (2) 76.58 (2)
Composition
Proper motion (right ascension) [mas/yr] 97.41718146 (0.3) 97.23818209 (0.5) 97.417 (0.3) 97.23818209
Proper motion (declination) [mas/yr] -208.7359825 (0.3) -208.394828 (0.5) -208.736 (0.3) -208.394828
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.90
V magnitude
R magnitude 19.00
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.73 (0.1) 21.73 (0.1)
g magnitude 19.93 (0.01) 19.93 (0.01)
r magnitude 19.22 (0.01) 19.22 (0.01)
i magnitude 18.94 (0.01) 18.94 (0.01)
z magnitude 18.80 (0.04) 18.80 (0.04)
G magnitude 19.24 (0.03) 19.27 19.24 19.24 (0.004) 19.27
BP magnitude 19.74 (0.03) 19.77 19.77
RP magnitude 18.66 (0.02) 18.65 18.65
Pan g magnitude 19.78 (0.02)
Pan r magnitude 19.21 (0.002)
Pan i magnitude 18.95 (0.01)
Pan z magnitude 18.85 (0.02)
Pan y magnitude 18.80 (0.02)
E(B-V) 0.008

* 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.