EGGR 64

All names: GCRV 60518, WD 0913+442, NLTT 21338, SDSS J091640.76+435941.0, CSI+44-09134, SDSS J091640.75+435941.1, TIC 56885227, SDSS J091640.75+435941.0, G 116-16, USNO 523, Pul -3 530372, WDJ091640.76+435941.59, WIRED J091640.76+435941.0, SDSS J091640.76+435941.1, PLX 2200.21, Gaia DR3 818602457173176192, LSPM J0916+4359, 09166+4359, J0916+4359, PG 0913+442, PM J09166+4359, EGGR 64, G116-16, GEN# +9.80116016, UCAC2 46824978, Gaia EDR3 818602457173176192, Gaia DR2 818602457173176192, USNO-B1.0 1339-00204985, UBV 8849, 2MASS J09164074+4359420, uvby98 980116016

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Kilic et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Tremblay et al. 2011 Liebert et al. 2005 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 16 40.76 (0.03) 09 16 40.75 09 16 40.76 (0.04) 09 16 40.76 (0.04) 09 16 40.76 09 16 40.76 (0.03) 09 16 40.76 09 16 40.76 09 16 42.41 09 16 40.76
Declination 43 59 37.29 (0.02) 43 59 41.12 43 59 37.42 (0.03) 43 59 37.42 (0.03) 43 59 37.29 43 59 41.59 (0.02) 43 59 37.42 43 59 41.09 43 59 56.40 43 59 41.06
Spectral type DA DA DA DA DA DA DA DA DA DA DA DA DA DA5.8 DA DA_auto DA5 DA DA
Effective temperature [K] 8671.0 (34) 8587.0 (71) 8695.0 (27) 8586.7 (35) 8671.0 (34) 8649.0 8614.0 (125) 8590.0 (123) 8690.0 (124) 8610.0 (10) 8680.0 (125) 8808.0 8490.0 (220) 8548.0 (31) 8739.0 (15) 8475.0 (16)
log(g) [cgs] 8.02 (0.006) 7.99 (0.02) 8.02 (0.005) 8.00 (0.01) 8.02 (0.005) 8.01 8.07 (0.05) 8.03 (0.05) 8.21 (0.05) 8.22 (0.02) 8.20 (0.05) 8.27 8.19 (0.2) 7.99 (0.007) 8.37 (0.02) 8.06 (0.02)
Mass [M] 0.607 (0.005) 0.592 (0.01) 0.61 (0.005) 0.607 (0.005) 0.604 0.51 (0.1) 0.62 (0.03) 0.73 (0.03) 0.73 (0.02) 0.72 (0.03) 0.71 (0.1) 0.588 (0.006) 0.63 (0.01)
log(Luminosity) [L] -3.12 -3.19 -3.23 (0.1)
Cooling age [Gyr] 0.9300 0.8932 1.2303 1.2882 1.2200 (0.3)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-10.794
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] 29.83 (0.04) 29.83 (0.04) 29.83 (0.05) 29.83 (0.05) 29.83 (0.05) 34.60 (4) 34.60 (4) 29.83 29.83 (0.04) 29.83 (0.05) 35.20 (39)
Distance [pc] 33.53 (0.04) 33.52 (0.04) 33.52 (0.06) 33.52 (0.05) 33.52 (0.05) 28.40 (3) 28.90 (3) 29.00 29.00 28.90 (3) 33.53 33.53 (0.04) 33.52 (0.05) 28.41 (31)
Composition H H H H H H H H
Proper motion (right ascension) [mas/yr] 4.976884628 (0.03) 4.85715709 (0.07) 4.977 (0.03) 4.857 10.1
Proper motion (declination) [mas/yr] -268.8217409 (0.02) -268.9063071 (0.06) -268.822 (0.02) -268.906 -263.8
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 15.59 15.56
V magnitude 15.35 15.37
R magnitude 15.22 15.30
I magnitude 15.07
J magnitude 15.01 (0.006) 15.04 14.96 14.96 (0.05)
H magnitude 14.86 (0.08) 14.90 14.84 14.86 (0.08)
K magnitude 14.91 (0.2) 14.81 14.87 14.91 (0.2)
u magnitude 15.80 (0.005) 15.79 (0.005) 15.80 (0.005) 15.80 (0.005) 15.77 (0.04) 15.72 15.78 (0.04)
g magnitude 15.37 (0.003) 15.37 (0.003) 15.37 (0.003) 15.41 (0.03) 15.41 15.41 (0.03)
r magnitude 15.38 (0.003) 15.38 (0.003) 15.38 (0.003) 15.35 (0.02) 15.35 15.36 (0.02)
i magnitude 15.42 (0.003) 15.42 (0.003) 15.42 (0.003) 15.38 (0.04) 15.39 15.38 (0.04)
z magnitude 15.57 (0.006) 15.57 (0.006) 15.57 (0.006) 15.58 (0.03) 15.60 15.58 (0.03)
G magnitude 15.31 (0.001) 15.33 15.33 15.31 15.31 (0.003) 15.33
BP magnitude 15.42 (0.001) 15.41 15.41
RP magnitude 15.12 (0.001) 15.13 15.13
Pan g magnitude 15.38 (0.004) 15.38 (0.004)
Pan r magnitude 15.38 (0.002) 15.38 (0.002)
Pan i magnitude 15.46 (0.005) 15.46 (0.004)
Pan z magnitude 15.56 (0.004) 15.56 (0.003)
Pan y magnitude 15.64 (0.003) 15.64 (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.