WD J2346-0037

All names: SDSS J234639.77-003716.0, SDSS J234639.77-003716.1, Gaia DR2 2641873416432547456, WD 2344-008, Gaia DR3 2641873416432547456, Gaia EDR3 2641873416432547456

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Mukadam et al. 2004 Vincent et al. 2024 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 23 46 39.83 (0.2) 23 46 39.78 23 46 39.83 (0.2) 23 46 39.83 23 46 39.78 23 46 38.83 23 46 39.77 23 46 39.77
Declination -00 37 16.47 (0.1) -00 37 16.16 -00 37 16.46 (0.1) -00 37 16.47 -00 37 16.10 -00 37 13.80 -00 37 16.15 -00 37 16.14
Spectral type DA DA DA DA DA4.1 DA DA
Effective temperature [K] 11730.0 12780.0 (380) 12980.0 (330) 13504.0 (772) 12983.0 (334) 12854.0 (213) 12414.0 (232)
log(g) [cgs] 7.83 8.22 (0.09) 7.97 (0.08) 8.02 (0.07) 7.97 (0.08) 8.06 (0.08) 8.18 (0.08)
Mass [M] 0.512 0.75 (0.06) 0.622 (0.06) 0.64 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.3211 0.4786
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] 4.24 (0.2) 4.12 (0.2) 4.24
Distance [pc] 235.65 (11) 242.77 (13) 235.65
Composition H H
Proper motion (right ascension) [mas/yr] 49.70371474 (0.2) 49.7732053 (0.4) 45.6 44.0
Proper motion (declination) [mas/yr] -22.17006632 (0.1) -22.32860197 (0.3) -22.6 -23.0
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.76 (0.02) 18.77 (0.02) 18.66 18.74 (0.02) 18.66 (0.03)
g magnitude 18.34 (0.007) 18.34 18.36 (0.01) 18.34 18.34 (0.01) 18.34 (0.02)
r magnitude 18.52 (0.009) 18.55 (0.02) 18.54 18.54 (0.02) 18.54 (0.02)
i magnitude 18.76 (0.01) 18.75 (0.02) 18.75 18.73 (0.02) 18.75 (0.02)
z magnitude 19.01 (0.04) 18.98 (0.04) 18.98 18.96 (0.05) 18.98 (0.05)
G magnitude 18.43 (0.02) 18.47 18.43
BP magnitude 18.45 (0.02) 18.47
RP magnitude 18.51 (0.03) 18.48
Pan g magnitude 18.36 (0.004)
Pan r magnitude 18.53 (0.004)
Pan i magnitude 18.76 (0.005)
Pan z magnitude 18.97 (0.01)
Pan y magnitude 19.08 (0.03)
E(B-V) 0.026

* 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.