SDSS J025049.44+343650.9

All names: Gaia EDR3 139882137028494720, Gaia DR2 139882137028494720, SDSS J025049.44+343650.9, Gaia DR3 139882137028494720, GALEX J025049.4+343650, SDSS J025049.44+343651.0, WIRED J025049.44+343651.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 02 50 49.46 (0.3) 02 50 49.44 02 50 49.46 (0.4) 02 50 49.43 (0.3) 02 50 49.44
Declination 34 36 50.93 (0.2) 34 36 51.00 34 36 50.93 (0.3) 34 36 51.02 (0.2) 34 36 51.02
Spectral type DA DA DA DA
Effective temperature [K] 13015.0 21790.0 (245)
log(g) [cgs] 7.82 8.03 (0.04)
Mass [M] 0.51 0.642 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.2344
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] 2.88 (0.3) 3.25 (0.4) 2.88 (0.3)
Distance [pc] 347.42 (30) 307.39 (38) 347.43 (30)
Composition H
Proper motion (right ascension) [mas/yr] 24.0871289 (0.4) 27.1133736 (1) 24.087 (0.4)
Proper motion (declination) [mas/yr] -5.69057314 (0.3) -6.82615344 (0.6) -5.691 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.73 (0.02) 18.73 (0.02) 18.76 (0.02)
g magnitude 18.60 (0.008) 18.60 (0.008) 18.64 (0.02)
r magnitude 18.84 (0.01) 18.84 (0.01) 18.90 (0.01)
i magnitude 19.10 (0.02) 19.10 (0.02) 19.16 (0.02)
z magnitude 19.34 (0.06) 19.34 (0.06) 19.43 (0.06)
G magnitude 18.76 (0.03) 18.79 18.76 (0.004)
BP magnitude 18.69 (0.03) 18.69
RP magnitude 18.78 (0.05) 18.79
Pan g magnitude 18.64 (0.01)
Pan r magnitude 18.90 (0.009)
Pan i magnitude 19.15 (0.008)
Pan z magnitude 19.33 (0.02)
Pan y magnitude 19.48 (0.03)
E(B-V) 0.064

* 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.