V* V344 Lyr

All names: ZTF18aakzafr, LAMOST J184439.18+432227.8, SV* SON 9329, KIC 7659570, V* V344 Lyr, ATO J281.1632+43.3745, Gaia DR2 2116887915892603520, 2MASS J18443917+4322280, V*V344Lyr, Gaia DR3 2116887920191163776, TIC 123234016

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 18 44 39.18 18 44 39.17 (0.05)
Declination 43 22 27.86 43 22 28.05 (0.05)
Spectral type sdB sdB
Effective temperature [K] 28846.0 (201)
log(g) [cgs] 5.94 (0.03)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.94 (0.08) 0.95 (0.06)
Distance [pc] 1063.83 (86) 1051.08 (69)
Composition
Proper motion (right ascension) [mas/yr] -3.161 (0.1) -3.123 (0.07)
Proper motion (declination) [mas/yr] 9.751 (0.1) 9.761 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.61 (0.05) 15.61 (0.05)
H magnitude 15.43 (0.1) 15.43 (0.1)
K magnitude 15.28 (0.2) 15.28 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.30 (0.09) 18.78 (0.06)
BP magnitude 15.98 (0.3)
RP magnitude 16.04 (0.3)
Pan g magnitude 18.81 (0.08)
Pan r magnitude 18.92 (0.1)
Pan i magnitude 18.62 (0.05)
Pan z magnitude 18.18 (0.4)
Pan y magnitude 18.77 (0.02)
E(B-V) 0.039

* 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.