SDSS J230846.19+233039.2

All names: SDSS J230846.18+233039.1, GALEX J230846.1+233039, Gaia EDR3 2842352044450078720, SDSS J230846.19+233039.2, Gaia DR2 2842352044450078720, Gaia DR3 2842352044450078720

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 23 08 46.20 (1) 23 08 46.19 23 08 46.20 (0.8) 23 08 46.18 (1) 23 08 46.19
Declination 23 30 39.15 (1) 23 30 39.16 23 30 39.15 (0.9) 23 30 39.26 (1) 23 30 39.18
Spectral type DA DA DA
Effective temperature [K] 29589.0 20144.0 (878)
log(g) [cgs] 7.32 8.01 (0.1)
Mass [M] 0.376 0.628 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.0100
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] 0.51 (1) 0.58 (1) 0.51 (1)
Distance [pc] 1942.16 (4264) 1711.47 (3380) 1942.12 (4264)
Composition H
Proper motion (right ascension) [mas/yr] 21.65618065 (2) 21.60001135 (2) 21.656 (2)
Proper motion (declination) [mas/yr] -7.287655625 (1) -8.492583974 (2) -7.288 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.85 (0.07) 20.85 (0.08) 20.85 (0.08)
g magnitude 20.62 (0.02) 20.62 (0.03) 20.62 (0.03)
r magnitude 20.85 (0.03) 20.88 (0.04) 20.88 (0.04)
i magnitude 21.13 (0.06) 21.17 (0.07) 21.17 (0.07)
z magnitude 21.22 (0.3) 21.22 (0.3) 21.22 (0.3)
G magnitude 20.74 (0.1) 20.84 20.74 (0.01)
BP magnitude 20.94 (0.1) 20.71
RP magnitude 20.19 (0.2) 20.78
Pan g magnitude 20.75 (0.02)
Pan r magnitude 20.87 (0.02)
Pan i magnitude 21.06 (0.05)
Pan z magnitude 21.37 (0.2)
Pan y magnitude
E(B-V) 0.052

* Constant surface field

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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.