PHL 459

All names: TIC 188619138, GALEX J231935.4-170526, Gaia EDR3 2405805697263561600, WDJ231935.39-170528.47, Gaia DR3 2405805697263561600, EGGR 264, GSC 06396-00118, GALEX J231935.5-170529, Gaia DR2 2405805697263561600, 2MASS J23193537-1705284, WD 2316-173, PHL 459, LTT 9491, WD 2317-17, LEHPM 5711, WD 2317-173, LP 822-50, WD2316-173, L791-40, NLTT 56486, G273-13, G 273-13, L 791-40

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 MWDD HE Gaia DR2 Stilism Bergeron et al. 2011 Voss et al. 2007 Koester et al. 2001 Weidemann and Koester 1995 Wegner et al. 1987 Koester et al. (1982b) Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Wegner 1983
Right ascension 23 19 35.66 (0.02) 23 19 35.65 (0.04) 23 19 35.66 23 19 35.39 (0.02) 23 19 35.65 23 19 34.51
Declination -17 05 28.30 (0.02) -17 05 28.31 (0.03) -17 05 28.30 -17 05 28.47 (0.02) -17 05 28.31 -17 05 28.32
Spectral type DBA DBA DBA DBQA4 DBQ DB DB3 DB3
Effective temperature [K] 11263.0 (142) 11227.0 12610.0 (424) 10868.0 12639.0 10800.0 12000.0 10800.0 11214.0 (65) 12000.0
log(g) [cgs] 8.04 (0.03) 8.07 9.11 (0.2) 8.00 8.05 (0.007)
Mass [M] 0.608 (0.01) 0.623 1.23 (0.07) 0.577 0.616 (0.006)
log(Luminosity) [L] -3.23
Cooling age [Gyr] 0.5057 1.5488 6.7080
log(H/He) -4.85 (0.6) -5.27 <-4.5
log(C/He) -6.5 -6.5
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 39.15 (0.02) 39.15 (0.02) 39.16 (0.04) 39.15 39.15 (0.02) 39.16 (0.04) 37.00
Distance [pc] 25.55 (0.02) 25.54 (0.01) 25.54 (0.03) 11.00 25.55 25.55 (0.02) 25.54 (0.03) 27.03
Composition He He He
Proper motion (right ascension) [mas/yr] 242.0735823 (0.03) 242.1431145 (0.09) 242.074 (0.03) 242.1431145
Proper motion (declination) [mas/yr] 10.22949839 (0.02) 10.40287176 (0.08) 10.229 (0.02) 10.40287176
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.13
V magnitude 14.08 14.04 14.11
R magnitude 14.07
I magnitude 14.05
J magnitude 14.17 (0.03)
H magnitude 14.19 (0.04)
K magnitude 14.26 (0.08)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.06 (0.002) 14.08 14.06 14.06 (0.003) 14.08
BP magnitude 14.06 (0.002) 14.04 14.04
RP magnitude 14.04 (0.001) 14.05 14.05
Pan g magnitude 14.06 (0.002)
Pan r magnitude 14.20 (0.002)
Pan i magnitude 14.38 (0.002)
Pan z magnitude 14.56 (0.004)
Pan y magnitude 14.69 (0.006)
E(B-V) 0.000

* 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.