EC 04408-4558

All names: EC04408-4558, EC 04408-4558, Gaia DR2 4790219463802822912, SPM4.0 2740050272, GALEX J044220.1-455229, TIC 200436339, 2MASS J04422010-4552284, Gaia DR3 4790219463802822912, Gaia EDR3 4790219463802822912

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 04 42 20.15 (0.04) 04 42 20.13 04 42 20.15 (0.04)
Declination -45 52 29.23 (0.04) -45 52 28.63 -45 52 29.27 (0.04)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.60 (0.04) 0.55 (0.06) 0.60 (0.04)
Distance [pc] 1665.83 (118) 1823.15 (192) 1665.83 (118)
Composition
Proper motion (right ascension) [mas/yr] 0.049 (0.04) 0.027 (0.1) 0.049 (0.04)
Proper motion (declination) [mas/yr] 2.468 (0.05) 2.596 (0.1) 2.468 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.45
V magnitude 15.81
R magnitude
I magnitude
J magnitude 16.20 (0.1) 16.20 (0.1)
H magnitude 16.14 (0.2) 16.14 (0.2)
K magnitude 15.95 (0.3) 15.95 (0.3)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.72 (0.003) 15.73 (0.0008) 15.72 (0.003)
BP magnitude 15.54 (0.004) 15.45 (0.008)
RP magnitude 16.09 (0.005) 16.08 (0.004)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.011

* 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.