PHL 316

All names: USNO-B1.0 0634-00990767, EC 22312-2647, UCAC4 318-243547, HE2231-2647, GALEX J223402.6-263220, PHL 316, 2MASS J22340262-2632210, Gaia EDR3 6621374578563035776, HE 2231-2647, TIC 209363138, WDJ223402.63-263220.98, Gaia DR2 6621374578563035776, WD 2231-267, Gaia DR3 6621374578563035776

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Koester et al. 2014 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 22 34 02.70 (0.08) 22 34 02.69 (0.09) 22 34 02.70 22 34 02.63 (0.08) 22 34 02.69 22 34 02.26
Declination -26 32 20.94 (0.07) -26 32 20.94 (0.07) -26 32 20.94 -26 32 20.99 (0.07) -26 32 20.94 -26 32 17.52
Spectral type DA DA DA DA
Effective temperature [K] 15456.0 21126.0 (287) 21592.0 (41) 19011.0 (209)
log(g) [cgs] 7.48 7.80 (0.09) 7.70 (0.006) 7.68 (0.01)
Mass [M] 0.37 0.521 (0.04) 0.459 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.0888
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H) <-8.40
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H) -8.1 (0.1)
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] 12.17 (0.09) 12.50 (0.1) 12.17 12.17 (0.09) 12.50 (0.1)
Distance [pc] 82.17 (0.6) 79.97 (0.7) 82.17 82.17 (0.6) 79.97 (0.7)
Composition H
Proper motion (right ascension) [mas/yr] 54.85310658 (0.09) 53.44794633 (0.2) 54.853 (0.09) 53.44794633
Proper motion (declination) [mas/yr] 3.15708452 (0.08) 2.632379198 (0.2) 3.157 (0.08) 2.632379198
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.96 14.95 (0.01)
V magnitude 14.97 (0.04) 14.98 (0.06)
R magnitude 15.38 (0.2)
I magnitude
J magnitude 15.34 (0.04)
H magnitude 15.39 (0.09)
K magnitude 15.58 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.00 (0.002) 15.01 15.00 15.00 (0.003) 15.01
BP magnitude 14.92 (0.002) 14.89 14.89
RP magnitude 15.15 (0.002) 15.16 15.16
Pan g magnitude 14.88 (0.003)
Pan r magnitude 15.18 (0.002)
Pan i magnitude 15.48 (0.002)
Pan z magnitude 15.71 (0.004)
Pan y magnitude 15.87 (0.005)
E(B-V) 0.002

* 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.