EGGR 4

All names: PLX 97.11, UBV 451, WD 0033+013, GCRV 50507, UBV M 42401, CSI+01-00330, G 1-7, Gaia DR2 2544456862306151680, GALEX J003535.7+015306, USNO 212, EGGR 4, 2MASS J00353582+0153082, J0035+0153, G1-7, L 1011-71, PM J00355+0153, GSC2U J003536.0+015314, Gaia DR3 2544456862306151680, TIC 318716079, WD 0033+016, PB 6049, 00355+0153, NLTT 1919, Gaia EDR3 2544456862306151680, LAWD 5, LTT 10199, SDSS J003535.75+015305.4, WDJ003535.84+015308.62, SDSS J003535.76+015305.4, PG 0033+016, LSPM J0035+0153, LP 585-53, WD 0033+01, USNO-B1.0 0918-00006663

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Koester et al. 2009 Liebert et al. 2005 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 35 35.68 (0.04) 00 35 35.69 (0.06) 00 35 35.69 (0.06) 00 35 35.68 00 35 35.84 (0.04) 00 35 35.69 00 35 36.07
Declination 01 53 02.82 (0.02) 01 53 03.00 (0.05) 01 53 03.00 (0.05) 01 53 02.82 01 53 08.63 (0.02) 01 53 03.00 01 53 25.08
Spectral type DA DA DA DA DA DA DA DA DA DA DA DA4.6 DA5
Effective temperature [K] 10663.0 (20) 10805.0 (129) 10811.0 (20) 10662.0 (20) 10753.0 (80) 10479.0 10828.0 (160) 10830.0 (157) 11080.0 (161) 10669.0 (11) 10980.0 (158) 10700.0 (350) 10505.0 (74)
log(g) [cgs] 8.68 (0.003) 8.69 (0.02) 8.70 (0.004) 8.68 (0.003) 8.70 (0.01) 8.66 8.73 (0.05) 8.71 (0.05) 8.91 (0.05) 8.79 (0.006) 8.83 (0.05) 8.66 (0.2) 8.66 (0.009)
Mass [M] 1.029 (0.002) 1.04 (0.01) 1.046 (0.002) 1.033 (0.002) 1.02 1.22 (0.4) 1.05 (0.03) 1.16 (0.02) 1.12 (0.02) 1.02 (0.09) 1.021 (0.007)
log(Luminosity) [L] -3.16 -3.23 -3.14 (0.1)
Cooling age [Gyr] 1.8600 1.7660 2.0893 1.6700 (0.5)
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] 31.41 (0.04) 31.41 (0.04) 31.58 (0.07) 31.58 (0.07) 31.58 (0.07) 30.40 (4) 30.40 (4) 31.41 31.41 (0.04) 31.58 (0.07) 26.00 (5)
Distance [pc] 31.84 (0.04) 31.84 (0.04) 31.67 (0.07) 31.66 (0.07) 31.66 (0.07) 32.90 (4) 32.90 (4) 27.00 29.00 32.89 (4) 31.84 31.84 (0.04) 31.66 (0.07) 38.46 (7)
Composition H H H H H H H
Proper motion (right ascension) [mas/yr] -144.8029936 (0.05) -144.6821438 (0.2) -144.803 (0.05) -144.6821438
Proper motion (declination) [mas/yr] -363.2265147 (0.04) -362.9608244 (0.1) -363.227 (0.04) -362.9608244
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.79 15.76
V magnitude 15.52 15.61 15.61 15.52
R magnitude 15.59 15.60
I magnitude 15.53
J magnitude 15.63 (0.01) 15.63 15.65 (0.06)
H magnitude 15.58 (0.01) 15.60 15.52 (0.09)
K magnitude 15.66 (0.02) 15.63 15.65 (0.09)
u magnitude 15.89 (0.005) 15.87 (0.005) 15.87 (0.005)
g magnitude 15.56 (0.004) 15.56 (0.004)
r magnitude 15.68 (0.004) 15.68 (0.004)
i magnitude 15.81 (0.005) 15.81 (0.005)
z magnitude 16.01 (0.007) 16.01 (0.007)
G magnitude 15.62 (0.003) 15.63 15.63 15.62 15.62 (0.003) 15.63
BP magnitude 15.65 (0.003) 15.64 15.64
RP magnitude 15.55 (0.003) 15.56 15.56
Pan g magnitude 15.63 (0) 15.62 (0.0004)
Pan r magnitude 15.73 (0.004) 15.71 (0.003)
Pan i magnitude 15.87 (0.003) 15.86 (0.001)
Pan z magnitude 16.04 (0) 16.03 (0.003)
Pan y magnitude 16.15 (0.02) 16.16 (0.005)
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.