EGGR 360

All names: 13474+1021W, SDSS J134724.17+102137.5, GJ 1178.0, SDSS J134724.16+102137.5, LHS 2800, PM J13474+1021W, CNS5 3409, PG 1344+106, Gaia EDR3 3725570772761744384, GEN# +9.80063054, G 63-54, USNO 148, Gaia DR3 3725570772761744384, 2MASS J13472436+1021379, UBV M 53608, WDJ134724.37+102138.01, WD 1344+10, Gaia DR2 3725570772761744384, PSO J206.8484+10.3600, LSPM J1347+1021, NLTT 35240, LTT 18353, J1347+1021, WD 1344+106, G 65-1, GJ 1178, G63-54, TIC 379136588, EGGR 360, WD1344+106, PLX 3144.01, USNO-B1.0 1003-00219288

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Hardy et al. 2023a Caron et al. 2023 McCleery et al. 2020 Kilic et al. 2020 Blouin et al. 2019 Gaia DR2 Bedard et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Koester et al. 2009 Holberg et al. 2008 Farihi et al. 2008 Liebert et al. 2005 Zuckerman et al. 2003 Koester et al. 2001 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 13 47 23.40 (0.02) 13 47 23.43 (0.03) 13 47 23.43 (0.03) 13 47 24.24 13 47 24.50 13 47 23.40 13 47 24.37 (0.02) 13 47 23.43 13 47 27.24
Declination 10 21 35.76 (0.02) 10 21 35.83 (0.03) 10 21 35.83 (0.03) 10 21 36.00 10 21 37.00 10 21 35.76 10 21 38.01 (0.02) 10 21 35.83 10 21 39.60
Spectral type DAZ DAZ DA DAZ DAZ DA+DC? DAH DA DAH DA DAH7.1 DAZ DA DAZ DAZ DAZ DA DA DA DA7.1 DA7
Effective temperature [K] 6964.0 (17) 6926.0 (48) 6914.3 (52) 7030.0 (13) 6986.7 (21) 6995.0 (14) 6970.0 (65) 6968.0 (107) 7060.0 (168) 6940.0 (102) 7059.0 7059.0 (168) 7120.0 (106) 6480.0 (7) 7110.0 7140.0 (108) 6945.0 7404.0 (13) 7110.0 (170) 7001.0 (21)
log(g) [cgs] 8.00 (0.003) 7.98 (0.02) 8.00 (0.08) 8.02 (0.004) 8.01 (0.009) 8.01 (0.004) 8.01 (0.02) 8.00 (0.08) 8.02 (0.1) 7.91 (0.07) 8.09 (0.1) 7.98 (0.08) 7.08 (0.01) 8.12 (0.08) 7.99 8.31 (0.03) 8.10 (0.1) 8.01 (0.005)
Mass [M] 0.592 (0.003) 0.577 (0.01) 0.5933133346420272 (0.1) 0.606 (0.003) 0.597 (0.004) 0.596 (0.01) 0.52 (0.1) 0.61 (0.06) 0.54 (0.04) 0.65 (0.07) 0.58 (0.05) 0.67 (0.05) 0.79 0.65 (0.07) 0.595 (0.005)
log(Luminosity) [L] -3.42 -3.49 -3.49 -3.48 (0.06)
Cooling age [Gyr] 1.6100 1.5510 (0.06) 1.5900 1.6900 1.9055 1.6700 (0.3)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -11.13 -11.133
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] 48.06 (0.03) 48.06 (0.03) 48.08 (0.04) 48.08 (0.04) 48.08 (0.04) 48.08 (0.04) 49.90 (4) 49.90 (4) 49.90 (4) 49.90 (4) 49.90 (4) 48.06 48.06 (0.03) 48.08 (0.04) 48.00 (4)
Distance [pc] 20.81 (0.01) 20.81 (0.01) 20.80 (0.02) 20.80 (0.02) 20.80 (0.02) 20.80 (0.02) 19.70 (1) 20.04 (1) 20.00 (1) 20.04 20.00 (2) 21.00 19.50 19.00 20.04 (1) 20.81 20.81 (0.01) 20.80 (0.02) 20.83 (2)
Composition H H H H H H H H H H H
Proper motion (right ascension) [mas/yr] -898.6551637 (0.03) -898.6073938 (0.07) -898.655 (0.03) -898.6073938
Proper motion (declination) [mas/yr] -140.6508599 (0.03) -140.5426124 (0.07) -140.651 (0.03) -140.5426124
Variability
Magnetic yes yes
Bd [MG] <10
Infrared excess (disk)
Binarity
B magnitude 15.50 15.50 15.49
V magnitude 15.08 15.12 15.08 15.12 15.08 15.08 15.12
R magnitude 14.90 14.90 14.80
I magnitude 14.64 14.64
J magnitude 14.41 (0.04) 14.41 (0.04) 14.38 14.36 14.38 14.41 (0.04)
H magnitude 14.14 (0.05) 14.14 (0.05) 14.20 14.06 14.20 14.14 (0.05)
K magnitude 14.23 (0.08) 14.23 (0.08) 14.19 14.12 14.19 14.23 (0.08)
u magnitude 15.80 (0.005) 15.79 (0.005) 15.79 (0.005) 15.76
g magnitude 15.21 (0.009) 15.22 (0.003) 15.25
r magnitude 15.06 (0.002) 15.06 (0.004) 15.08
i magnitude 15.03 (0.004) 15.01 (0.004) 15.00
z magnitude 15.07 (0.004) 15.06 (0.005) 15.07
G magnitude 15.02 (0.002) 15.04 15.04 15.02 15.02 (0.003) 15.04
BP magnitude 15.22 (0.002) 15.22 15.22
RP magnitude 14.69 (0.002) 14.70 14.70
Pan g magnitude 15.21 (0.008) 15.21 (0.001) 15.21 (0.009)
Pan r magnitude 15.06 (0.002) 15.04 (0.003) 15.06 (0.002)
Pan i magnitude 15.03 (0.005) 15.05 (0.01) 15.03 (0.004)
Pan z magnitude 15.07 (0.004) 15.07 (0.003) 15.07 (0.004)
Pan y magnitude 15.09 (0.002) 15.10 (0.003) 15.09 (0.002)
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.