HE 1338-2204

All names: Gaia EDR3 6192440730197235072, EC 13385-2204, GALEX J134117.2-221944, Gaia DR2 6192440730197235072, WD 1338-220, HE 1338-2204, Gaia DR3 6192440730197235072, USNO-B1.0 0676-00357661, USNO-A2.0 0675-12776173

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Voss et al. 2007 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 13 41 17.22 (0.07) 13 41 17.22 (0.1) 13 41 17.22 13 41 17.29 (0.07) 13 41 17.28
Declination -22 19 44.18 (0.06) -22 19 44.18 (0.1) -22 19 44.18 -22 19 44.18 (0.06) -22 19 38.64
Spectral type DB DBA He-sdB
Effective temperature [K] 13694.0 12970.0 (245)
log(g) [cgs] 8.00 7.97 (0.02)
Mass [M] 0.584 0.568 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.2100
log(H/He) -4.91
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 9.46 (0.08) 9.69 (0.1) 9.46 9.46 (0.08)
Distance [pc] 105.71 (0.9) 103.17 (1) 105.71 105.71 (0.9)
Composition
Proper motion (right ascension) [mas/yr] -57.63342218 (0.08) -57.81646725 (0.2) -57.633 (0.08)
Proper motion (declination) [mas/yr] 0.024798561 (0.07) 0.338908771 (0.2) 0.025 (0.07)
Variability
Magnetic yes
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.20 17.00
V magnitude 16.38
R magnitude 16.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.68 (0.006) 16.72 16.68 16.68 (0.003)
BP magnitude 16.66 (0.006) 16.65
RP magnitude 16.71 (0.008) 16.72
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.008

* Constant surface field

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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.