LP 437-90

All names: Gaia DR2 3746958021973856768, NLTT 34226, Gaia DR3 3746958021973856768, SDSS J132835.23+190418.6, SDSS J132835.22+190418.6, LSPM J1328+1904, LP 437-90, SDSS J132835.23+190418.7, Gaia EDR3 3746958021973856768, GALEX J132835.1+190419, USNO-B1.0 1090-00215382

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 28 35.10 (0.1) 13 28 35.23 13 28 35.11 (0.2) 13 28 35.10 13 28 35.29 (0.1) 13 28 35.23
Declination 19 04 18.95 (0.09) 19 04 18.66 19 04 18.94 (0.1) 19 04 18.95 19 04 18.47 (0.09) 19 04 18.69
Spectral type DA DA DA DA DA
Effective temperature [K] 6250.0 6531.0 (109) 6517.0 (69)
log(g) [cgs] 7.76 7.92 (0.04) 8.37 (0.1)
Mass [M] 0.455 0.543 (0.03) 0.818 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 1.4530
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] 9.04 (0.2) 9.06 (0.2) 9.04 9.04 (0.2)
Distance [pc] 110.60 (2) 110.42 (3) 110.60 110.60 (2)
Composition H
Proper motion (right ascension) [mas/yr] -163.2854134 (0.2) -163.0300581 (0.4) -163.285 (0.2)
Proper motion (declination) [mas/yr] 30.37664394 (0.1) 30.24864311 (0.2) 30.377 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.10
V magnitude
R magnitude 18.90
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.70 (0.03) 19.70 (0.03) 19.74 (0.05)
g magnitude 19.04 (0.01) 19.04 (0.01) 19.11 (0.02)
r magnitude 18.75 (0.01) 18.75 (0.01) 18.84 (0.03)
i magnitude 18.67 (0.01) 18.67 (0.01) 18.77 (0.03)
z magnitude 18.67 (0.03) 18.67 (0.03) 18.76 (0.04)
G magnitude 18.81 (0.02) 18.84 18.81 18.81 (0.003)
BP magnitude 19.05 (0.02) 19.05
RP magnitude 18.40 (0.02) 18.40
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.006

* 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.