PHL 386

All names: WD 2240-017, LP 640-69, G 28-13, PLX 5500.01, NLTT 54650, UBV M 53506, CSI-01-22405, GEN# +9.80028013, Gaia DR2 2652784694950778624, 2MASS J22430475-0127532, WDJ224304.77-012753.46, USNO 273, Gaia EDR3 2652784694950778624, G28-13, WD 2240-01, WD2240-017, USNO-B1.0 0885-00607509, Gaia DR3 2652784694950778624, PHL 386, TIC 250327946, J2243-0127, GCRV 73443, UBV 19439, PB 5137, EGGR 154, GALEX J224304.6-012754, LTT 18575

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Caron et al. 2023 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Koester et al. 2001 Bergeron et al. 1997 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 22 43 04.62 (0.05) 22 43 04.62 (0.06) 22 43 04.80 22 43 04.62 22 43 04.77 (0.05) 22 43 04.62 22 43 05.40
Declination -01 27 56.56 (0.04) -01 27 56.46 (0.05) -01 27 54.00 -01 27 56.56 -01 27 53.45 (0.04) -01 27 56.46 -01 27 39.60
Spectral type DA DA DA DA DA DA5.4 DA6
Effective temperature [K] 9126.0 (47) 8935.0 9250.0 (133) 9114.0 (10) 9174.0 (15) 9150.0 (520) 9258.0 (100)
log(g) [cgs] 8.00 (0.008) 7.95 8.26 (0.06) 8.05 (0.01) 8.10 (0.02) 8.00 (0) 8.02 (0.02)
Mass [M] 0.597 (0.007) 0.567 0.76 (0.04) 0.66 0.6 0.612 (0.01)
log(Luminosity) [L] -2.98
Cooling age [Gyr] 0.8000 0.7504 0.8100
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] 18.21 (0.05) 18.19 (0.07) 18.19 (0.07) 8.90 (6) 18.21 18.21 (0.05) 18.19 (0.07) 9.00 (5)
Distance [pc] 54.91 (0.2) 54.98 (0.2) 54.97 (0.2) 45.00 112.36 (72) 54.91 54.91 (0.2) 54.97 (0.2) 111.11 (62)
Composition H H H H
Proper motion (right ascension) [mas/yr] -144.9128915 (0.06) -144.8881368 (0.1) -144.913 (0.06) -144.8881368
Proper motion (declination) [mas/yr] -194.1946288 (0.05) -193.9693273 (0.09) -194.195 (0.05) -193.9693273
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.42 16.52
V magnitude 16.17 16.17 16.22 16.21
R magnitude 16.11 16.10
I magnitude 15.98
J magnitude 15.93 (0.008) 15.97 (0.07)
H magnitude 15.86 (0.01) 15.89 (0.1)
K magnitude 15.91 (0.03) 15.79 (0.2)
u magnitude 16.67 (0.007) 16.66 (0.007)
g magnitude 16.23 (0.004)
r magnitude 16.23 (0.004)
i magnitude 16.32 (0.005)
z magnitude 16.44 (0.008)
G magnitude 16.18 (0.005) 16.20 16.18 16.18 (0.003) 16.20
BP magnitude 16.26 (0.005) 16.26 16.26
RP magnitude 16.02 (0.005) 16.02 16.02
Pan g magnitude 16.23 (0.01) 16.23 (0.01)
Pan r magnitude 16.24 (0.004) 16.24 (0.004)
Pan i magnitude 16.35 (0.001) 16.35 (0.001)
Pan z magnitude 16.46 (0.003) 16.46 (0.003)
Pan y magnitude 16.55 (0.007) 16.55 (0.008)
E(B-V) 0.001

* 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.