SDSS J042242.38+074122.0

All names: Gaia DR2 3287002380742315520, SDSS J042242.38+074122.0, SDSS J042242.38+074121.9, Gaia DR3 3287002380742315520, Gaia EDR3 3287002380742315520, GALEX J042242.4+074122

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 04 22 42.39 (0.5) 04 22 42.38 04 22 42.39 (0.6) 04 22 42.38 (0.5) 04 22 42.38
Declination 07 41 21.84 (0.4) 07 41 21.95 07 41 21.84 (0.4) 07 41 21.96 (0.4) 07 41 21.98
Spectral type DA DA DA DA
Effective temperature [K] 12047.0 19960.0 (490)
log(g) [cgs] 7.63 7.93 (0.08)
Mass [M] 0.415 0.587 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2310
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] 1.98 (0.6) 1.83 (0.7) 1.98 (0.6)
Distance [pc] 505.37 (166) 546.11 (214) 505.36 (166)
Composition H
Proper motion (right ascension) [mas/yr] 8.977581384 (0.8) 9.9265961 (1) 8.978 (0.8)
Proper motion (declination) [mas/yr] -7.430448898 (0.5) -7.850548215 (0.8) -7.43 (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 20.07 (0.04) 20.07 (0.04) 20.08 (0.04)
g magnitude 19.79 (0.01) 19.79 (0.01) 19.81 (0.02)
r magnitude 19.97 (0.02) 19.97 (0.02) 19.99 (0.02)
i magnitude 20.18 (0.03) 20.18 (0.04) 20.23 (0.03)
z magnitude 20.47 (0.1) 20.47 (0.1) 20.49 (0.1)
G magnitude 19.89 (0.06) 19.94 19.89 (0.006)
BP magnitude 19.96 (0.06) 19.96
RP magnitude 19.92 (0.08) 20.00
Pan g magnitude 19.78 (0.03)
Pan r magnitude 19.99 (0.01)
Pan i magnitude 20.18 (0.02)
Pan z magnitude 20.49 (0.04)
Pan y magnitude 20.26 (0.3)
E(B-V) 0.207

* 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.