SDSS J081907.37+125455.7

All names: Gaia DR2 649608890078555392, SDSS J081907.37+125455.7, SDSS J081907.38+125455.6, SDSS J081907.37+125455.73, GALEX J081907.3+125455, SDSS J081907.37+125455.5, Gaia EDR3 649608890078555392, Gaia DR3 649608890078555392, SDSS J081907.38+125455.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 08 19 07.37 (0.2) 08 19 07.38 08 19 07.37 (0.2) 08 19 07.37 08 19 07.39 (0.2)
Declination 12 54 55.79 (0.1) 12 54 55.58 12 54 55.78 (0.1) 12 54 55.79 12 54 55.54 (0.1)
Spectral type DA DA DA DA DA
Effective temperature [K] 19817.0 26249.0 (129) 25669.0 (2324)
log(g) [cgs] 7.97 8.06 (0.02) 8.08 (0.1)
Mass [M] 0.606 0.6659999999999999 (0.01) 0.684 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.0664
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] 2.18 (0.2) 2.47 (0.3) 2.18 2.18 (0.2)
Distance [pc] 458.78 (43) 404.38 (44) 458.78 458.78 (43)
Composition H
Proper motion (right ascension) [mas/yr] -16.24321646 (0.2) -15.72500279 (0.5) -16.243 (0.2)
Proper motion (declination) [mas/yr] 15.49616962 (0.1) 15.36045559 (0.3) 15.496 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.49 (0.02) 18.49 (0.02) 18.49 (0.02)
g magnitude 18.57 (0.008) 18.59 (0.02) 18.57 (0.008)
r magnitude 18.98 (0.01) 18.99 (0.01) 18.98 (0.01)
i magnitude 19.29 (0.02) 19.29 (0.03) 19.29 (0.02)
z magnitude 19.75 (0.08) 19.72 (0.08) 19.75 (0.08)
G magnitude 18.80 (0.02) 18.84 18.80 18.80 (0.003)
BP magnitude 18.72 (0.02) 18.68
RP magnitude 19.06 (0.04) 19.05
Pan g magnitude 18.61 (0.005)
Pan r magnitude 19.00 (0.006)
Pan i magnitude 19.32 (0.007)
Pan z magnitude 19.55 (0.02)
Pan y magnitude 19.66 (0.03)
E(B-V) 0.024

* 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.