SDSS J234634.86+185139.1

All names: GALEX J234634.9+185139, SDSS J234634.86+185139.1, Gaia DR2 2822022005732244864, SDSS J234634.86+185139.11, Gaia DR3 2822022005732244864, Gaia EDR3 2822022005732244864, SDSS J234634.85+185139.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 23 46 34.87 (1) 23 46 34.86 23 46 34.87 (1) 23 46 34.85 (1)
Declination 18 51 39.19 (0.8) 18 51 39.12 18 51 39.18 (0.7) 18 51 38.89 (0.8)
Spectral type DA DA DA DA
Effective temperature [K] 7355.0 7919.0 (97)
log(g) [cgs] 8.86 8.10 (0.1)
Mass [M] 1.129 0.568 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 3.9750
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] 6.53 (1) 6.31 (1) 6.53 (1)
Distance [pc] 153.24 (28) 158.54 (37) 153.24 (28)
Composition H
Proper motion (right ascension) [mas/yr] 18.15382258 (2) 16.53908557 (3) 18.154 (2)
Proper motion (declination) [mas/yr] 18.51973384 (1) 18.86511105 (1) 18.52 (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 21.48 (0.2) 21.45 (0.1) 21.48 (0.2)
g magnitude 20.81 (0.03) 20.85 (0.04) 20.81 (0.03)
r magnitude 20.75 (0.04) 20.77 (0.04) 20.74 (0.04)
i magnitude 20.60 (0.06) 20.62 (0.06) 20.59 (0.06)
z magnitude 20.87 (0.3) 20.90 (0.3) 20.86 (0.3)
G magnitude 20.68 (0.1) 20.76 20.68 (0.01)
BP magnitude 20.47 (0.1) 20.53
RP magnitude 20.33 (0.1) 20.75
Pan g magnitude 20.85 (0.03)
Pan r magnitude 20.67 (0.02)
Pan i magnitude 20.76 (0.02)
Pan z magnitude 20.72 (0.08)
Pan y magnitude 20.74 (0.05)
E(B-V) 0.013

* 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.