WD 2145-086

All names: WDJ214752.10-082436.87, SDSS J214752.10-082436.8, WD 2145-086, 2MASS J21475205-0824371, Gaia EDR3 2666306798185155200, Gaia DR3 2666306798185155200, J2147-0824, Gaia DR2 2666306798185155200, GALEX J214752.0-082435, TIC 333464751, SDSS J214752.09-082436.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 47 52.13 (0.09) 21 47 52.13 (0.1) 21 47 52.13 21 47 52.10 (0.09) 21 47 52.13 21 47 52.30
Declination -08 24 34.45 (0.09) -08 24 34.52 (0.1) -08 24 34.45 -08 24 36.87 (0.09) -08 24 34.52 -08 24 32.76
Spectral type DA DA DA DA DA DA DA8.4
Effective temperature [K] 6031.0 (20) 6022.0 (17) 6032.0 (20) 5942.0 6014.0 (48)
log(g) [cgs] 7.94 (0.009) 7.94 (0.01) 7.94 (0.01) 7.90 7.93 (0.02)
Mass [M] 0.55 (0.007) 0.554 (0.008) 0.554 (0.008) 0.531 0.545 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 2.1200 1.9780
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] 20.41 (0.1) 20.48 (0.1) 20.48 (0.1) 20.41 20.41 (0.1) 20.48 (0.1)
Distance [pc] 49.01 (0.3) 48.83 (0.3) 48.83 (0.3) 49.01 49.01 (0.3) 48.83 (0.3)
Composition H H H
Proper motion (right ascension) [mas/yr] 32.28409278 (0.1) 32.02874962 (0.2) 32.284 (0.1) 32.02874962
Proper motion (declination) [mas/yr] 151.3735005 (0.09) 151.5817322 (0.2) 151.374 (0.09) 151.5817322
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.43 (0.01) 16.47 (0.1)
H magnitude
K magnitude 16.13 (0.04) 15.46 (0.2)
u magnitude 18.59 (0.02) 18.58 (0.02) 18.58 (0.02) 18.34
g magnitude 17.75 (0.006) 17.75 (0.006) 17.59
r magnitude 17.37 (0.006) 17.37 (0.006) 17.27
i magnitude 17.22 (0.006) 17.22 (0.006) 17.13
z magnitude 17.18 (0.01) 17.18 (0.01) 17.14
G magnitude 17.38 (0.01) 17.39 17.38 17.38 (0.003) 17.39
BP magnitude 17.68 (0.01) 17.67 17.67
RP magnitude 16.90 (0.01) 16.91 16.91
Pan g magnitude 17.71 (0.005) 17.71 (0.004)
Pan r magnitude 17.38 (0.003) 17.38 (0.004)
Pan i magnitude 17.25 (0.003) 17.25 (0.003)
Pan z magnitude 17.23 (0.005) 17.23 (0.004)
Pan y magnitude 17.22 (0.007) 17.22 (0.007)
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.