EGGR 298

All names: G 166-58, SDSS J145806.53+293727.0, Gaia DR3 1281989124439286912, CSI+29-14560, WD 1455+29, WD 1456+29, USNO 155, 2MASS J14580648+2937297, PG 1456+298, Gaia EDR3 1281989124439286912, LHS 3007, WD 1455+298, WDJ145806.49+293729.52, EGGR 298, USNO-B1.0 1196-00229059, UBV 13009, GEN# +9.80166058, PSO J224.5276+29.6226, J1458+2937, G 167-8, NLTT 38938, UBV M 53820, WISEA J145806.66+293723.8, G166-58, 14581+2937, PM J14581+2937, TIC 229874190, LSPM J1458+2937, PLX 3384.01, SDSS J145806.54+293727.0, WIRED J145806.53+293727.0, SDSS J145806.53+293726.9, Gaia DR2 1281989124439286912, WD 1456+298

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H MWDD HE Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Farihi et al. 2010 Farihi et al. 2008 Liebert et al. 2005 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 58 06.66 (0.01) 14 58 06.54 14 58 06.66 (0.02) 14 58 06.66 (0.02) 14 58 06.66 14 58 06.49 (0.01) 14 58 06.66 14 58 06.14 14 58 06.54
Declination 29 37 19.94 (0.02) 29 37 26.94 29 37 20.24 (0.03) 29 37 20.24 (0.03) 29 37 19.94 29 37 29.52 (0.02) 29 37 20.24 29 37 50.52 29 37 27.00
Spectral type DAZ DAZ DAZ DA DA DA DA DAZ DAZ DA DA DA6.8 DA DA6 DA DA
Effective temperature [K] 7342.0 (53) 7381.0 (19) 7320.3 (19) 7335.0 (60) 7463.0 7191.0 7290.0 (105) 7290.0 (105) 7390.0 (106) 7500.0 7390.0 7390.0 (106) 7366.0 7310.0 (170) 7366.0 (21) 7266.0 (30)
log(g) [cgs] 7.97 (0.02) 7.98 (0.005) 7.97 (0.008) 7.99 (0.02) 8.02 7.91 7.90 (0.06) 7.90 (0.06) 7.99 (0.06) 7.97 (0.05) 7.58 7.66 (0.2) 7.98 (0.005) 7.89 (0.06)
Mass [M] 0.578 (0.01) 0.562 (0.004) 0.589 (0.01) 0.605 0.523 0.68 (0.2) 0.54 (0.03) 0.58 (0.03) 0.58 (0.03) 0.41 (0.1) 0.583 (0.004) 0.535 (0.03)
log(Luminosity) [L] -3.33 -3.34 -3.19 (0.1)
Cooling age [Gyr] 1.3800 1.3380 (0.05) 1.3250 1.2950 1.3804 0.8900 (0.2)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -9.31 -9.31 -9.312
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H) -8.22
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) -8.09
log(Ni/H)
Parallax [mas] 35.00 (0.03) 35.00 (0.03) 35.01 (0.03) 35.01 (0.03) 35.01 (0.03) 35.01 (0.03) 28.90 (4) 28.90 (4) 35.00 35.00 (0.03) 35.01 (0.03) 28.00 (4)
Distance [pc] 28.57 (0.02) 28.57 (0.02) 28.56 (0.02) 28.56 (0.03) 28.56 (0.03) 28.56 (0.03) 33.60 (5) 34.60 (5) 28.00 29.00 34.60 (5) 28.57 28.57 (0.02) 28.56 (0.03) 35.71 (5)
Composition H H H H H H H
Proper motion (right ascension) [mas/yr] 142.0949083 (0.03) 142.1118915 (0.05) 142.095 (0.03) 142.112
Proper motion (declination) [mas/yr] -598.3938041 (0.03) -598.3975581 (0.06) -598.394 (0.03) -598.398
Variability
Magnetic
Bd [MG]
Infrared excess (disk) yes yes
Binarity DDu
B magnitude 15.91 15.86
V magnitude 15.60 15.60 15.60
R magnitude 15.38 15.30
I magnitude 15.18
J magnitude 14.93 (0.006) 14.97 (0.05) 14.90 14.86 14.97 (0.05)
H magnitude 14.61 (0.07) 14.61 (0.07) 14.69 14.73 14.61 (0.07)
K magnitude 14.74 (0.1) 14.74 (0.1) 14.66 14.72 14.74 (0.1)
u magnitude 16.16 (0.005) 16.16 (0.006) 16.16 (0.005) 16.17 (0.006) 16.13 16.18 (0.02)
g magnitude 15.67 (0.004) 15.67 (0.003) 15.67 (0.004) 15.67 15.66 (0.03)
r magnitude 15.55 (0.004) 15.54 (0.003) 15.55 (0.004) 15.54 15.54 (0.01)
i magnitude 15.52 (0.005) 15.55 (0.001) 15.53 (0.004) 15.53 15.52 (0.01)
z magnitude 15.59 (0.006) 15.61 (0.004) 15.59 (0.006) 15.63 15.60 (0.01)
G magnitude 15.50 (0.002) 15.51 15.51 15.50 15.50 (0.003) 15.51
BP magnitude 15.66 (0.002) 15.66 15.66
RP magnitude 15.20 (0.001) 15.21 15.21
Pan g magnitude 15.65 (0.007) 15.67 (0.003) 15.67 (0.003)
Pan r magnitude 15.53 (0.003) 15.54 (0.003) 15.54 (0.003)
Pan i magnitude 15.53 (0.003) 15.55 (0.001) 15.55 (0.001)
Pan z magnitude 15.62 (0.01) 15.61 (0.005) 15.61 (0.005)
Pan y magnitude 15.65 (0.007) 15.65 (0.004) 15.65 (0.004)
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.