SDSS J140821.99+443007.9

All names: SDSS J140821.99+443008.0, Gaia DR2 1505397066724973312, LAMOST J140822.00+443007.9, SDSS J140821.99+443007.9, SDSS J140822.00+443007.9, SDSS J140822.00+443008.0, Gaia DR3 1505397066724973312, GALEX J140821.9+443006, WD 1406+447, Gaia EDR3 1505397066724973312

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Guo et al. 2015 Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 08 21.94 (0.1) 14 08 22.00 14 08 21.94 (0.2) 14 08 22.02 (0.1) 14 08 22.00 14 08 21.98 14 08 22.00
Declination 44 30 08.30 (0.2) 44 30 08.02 44 30 08.29 (0.2) 44 30 07.94 (0.2) 44 30 07.96 44 30 00.72 44 30 07.96
Spectral type DA DA DA DA DA_auto DA DAH DA
Effective temperature [K] 11801.0 17350.0 (610) 15799.0 (272) 15859.0 (279)
log(g) [cgs] 7.03 7.38 (0.1) 7.15 (0.08) 7.21 (0.08)
Mass [M] 0.235 0.38 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.1451 0.1288
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] 1.96 (0.2) 1.77 (0.3) 1.96 (0.2)
Distance [pc] 511.48 (52) 566.17 (84) 511.48 (52)
Composition H H
Proper motion (right ascension) [mas/yr] -51.39412162 (0.2) -51.51481766 (0.3) -51.394 (0.2) -50.0
Proper motion (declination) [mas/yr] 22.86181858 (0.2) 23.28554505 (0.3) 22.862 (0.2) 28.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.35 (0.02) 19.35 (0.02) 19.33 (0.03) 19.32 19.33 (0.03)
g magnitude 19.00 (0.009) 19.00 (0.009) 19.02 (0.02) 19.01 19.02 (0.02)
r magnitude 19.28 (0.01) 19.28 (0.01) 19.26 (0.02) 19.26 19.27 (0.02)
i magnitude 19.53 (0.02) 19.53 (0.02) 19.52 (0.03) 19.52 19.52 (0.03)
z magnitude 19.59 (0.07) 19.59 (0.07) 19.59 (0.07) 19.59 19.60 (0.07)
G magnitude 19.14 (0.02) 19.18 19.14 (0.004)
BP magnitude 19.14 (0.02) 19.11
RP magnitude 19.25 (0.04) 19.17
Pan g magnitude 19.04 (0.008)
Pan r magnitude 19.27 (0.008)
Pan i magnitude 19.52 (0.01)
Pan z magnitude 19.73 (0.02)
Pan y magnitude 19.74 (0.04)
E(B-V) 0.020

* 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.