SDSS J075458.80+433405.3

All names: SDSS J075458.80+433405.33, SDSS J075458.80+433405.3, Gaia DR3 925694782343868160, SDSS J075458.79+433405.3, Gaia EDR3 925694782343868160, Gaia DR2 925694782343868160

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 07 54 58.81 (0.5) 07 54 58.80 07 54 58.81 (0.7) 07 54 58.80 (0.5)
Declination 43 34 04.91 (0.5) 43 34 05.32 43 34 04.92 (0.5) 43 34 05.35 (0.5)
Spectral type DC: DC: DC: DC DC
Effective temperature [K] 7834.0 7662.0 11660.0 (1500)
log(g) [cgs] 7.97 7.91 7.62 (0.05)
Mass [M] 0.579 0.522
log(Luminosity) [L]
Cooling age [Gyr] 1.0950 1.1020
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.93 (0.7) 3.95 (0.9) 4.93 (0.7)
Distance [pc] 202.87 (30) 252.90 (55) 202.87 (30)
Composition
Proper motion (right ascension) [mas/yr] 7.397575765 (0.7) 6.025392962 (1) 7.398 (0.7)
Proper motion (declination) [mas/yr] -27.48794268 (0.5) -29.17672465 (1) -27.488 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.50 (0.05) 20.50 (0.05) 20.50 (0.05)
g magnitude 20.08 (0.02) 20.08 (0.02) 20.08 (0.02)
r magnitude 20.01 (0.02) 20.01 (0.02) 20.01 (0.02)
i magnitude 20.06 (0.03) 20.06 (0.03) 20.06 (0.03)
z magnitude 20.19 (0.1) 20.19 (0.1) 20.19 (0.1)
G magnitude 20.00 (0.1) 20.04 20.00 (0.007)
BP magnitude 20.12 (0.1) 20.18
RP magnitude 19.83 (0.08) 19.73
Pan g magnitude 20.12 (0.01)
Pan r magnitude 20.03 (0.02)
Pan i magnitude 20.09 (0.02)
Pan z magnitude 20.14 (0.03)
Pan y magnitude 19.58 (0.3)
E(B-V) 0.013

* 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.