Gaia DR2 3254857814706920064

All names: SDSS J042359.34+002118.4, WDJ042359.35+002118.27, Gaia DR2 3254857814706920064, SDSS J042359.34+002118.3, Gaia DR3 3254857814706920064, Gaia EDR3 3254857814706920064

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 04 23 59.40 (0.2) 04 23 59.40 04 23 59.40 04 23 59.35 (0.2) 04 23 59.40
Declination 00 21 16.62 (0.2) 00 21 16.67 00 21 16.62 00 21 18.26 (0.2) 00 21 16.67
Spectral type DA DA DA
Effective temperature [K] 5799.0 (54) 5734.0 5466.0 6156.0 (178)
log(g) [cgs] 8.23 (0.03) 8.13 7.97 8.38 (0.06)
Mass [M] 0.731 (0.03) 0.669 0.55 0.831 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 3.6460 3.7500
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] 11.45 (0.3) 10.96 (0.5) 11.45 11.45 (0.3) 10.96 (0.5)
Distance [pc] 87.37 (2) 91.28 (4) 87.37 87.37 (2) 91.28 (4)
Composition H
Proper motion (right ascension) [mas/yr] 54.77519281 (0.4) 55.27101196 (0.9) 54.775 (0.4) 55.27101196
Proper motion (declination) [mas/yr] -102.6342428 (0.3) -103.0694998 (0.4) -102.634 (0.3) -103.0694998
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.63 (0.05) 20.63 (0.05)
g magnitude 19.67 (0.01) 19.67 (0.01)
r magnitude 19.20 (0.01) 19.20 (0.01)
i magnitude 19.04 (0.01) 19.04 (0.01)
z magnitude 18.94 (0.04) 18.94 (0.04)
G magnitude 19.21 (0.05) 19.25 19.21 19.21 (0.004) 19.25
BP magnitude 19.48 (0.05) 19.64 19.64
RP magnitude 18.75 (0.03) 18.73 18.73
Pan g magnitude 19.58 (0.01)
Pan r magnitude 19.21 (0.007)
Pan i magnitude 19.03 (0.01)
Pan z magnitude 19.00 (0.01)
Pan y magnitude 19.02 (0.03)
E(B-V) 0.001

* 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.