SDSS J155734.80+080819.3

All names: Gaia DR2 4454271618739392256, SDSS J155734.80+080819.3, Gaia EDR3 4454271618739392256, GALEX J155734.8+080819, Gaia DR3 4454271618739392256

Parameter Unit Gaia EDR3 SDSS DR12 Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 15 57 34.80 (0.9) 15 57 34.80 15 57 34.80 (0.9) 15 57 34.80 (0.9) 15 57 34.80
Declination 08 08 19.24 (0.7) 08 08 19.29 08 08 19.24 (1) 08 08 19.25 (0.7) 08 08 19.31
Spectral type DA DA
Effective temperature [K] 28047.0 (1732)
log(g) [cgs] 7.28 (0.4)
Mass [M☉] 0.415 (0.1)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.95 (1) 0.30 (1) 0.95 (1)
Distance [pc] 1055.97 (1144) 3380.71 (16554) 1055.97 (1144)
Composition
Proper motion (right ascension) [mas/yr] 5.111156519 (1) 5.385433259 (2) 5.111 (1)
Proper motion (declination) [mas/yr] -0.46837672 (0.8) -0.272872723 (2) -0.468 (0.8)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.18 (0.05) 20.29 (0.06) 20.29 (0.06)
g magnitude 20.36 (0.02) 20.39 (0.03) 20.39 (0.03)
r magnitude 20.80 (0.04) 20.80 (0.04) 20.80 (0.04)
i magnitude 21.11 (0.07) 21.24 (0.07) 21.24 (0.07)
z magnitude 21.60 (0.4) 21.35 (0.3) 21.35 (0.3)
G magnitude 20.57 (0.09) 20.64 20.57 (0.01)
BP magnitude 20.21 (0.09) 20.54
RP magnitude 20.64 (0.2) 20.78
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.038

* 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.