PG 1633+434

All names: G180-63, PLX 3775.01, PSO J248.7570+43.2924, SDSS J163501.43+431736.3, WD 1633+433, CNS5 4069, USNO 636, WDJ163501.43+431736.35, 2MASS J16350138+4317368, TIC 115173690, J1635+4317, G 180-63, WD 1633+43, NLTT 43145, PG 1633+434, uvby98 980180063, Gaia EDR3 1405343643196929536, Gaia DR3 1405343643196929536, WISEA J163501.64+431733.2, Gaia DR2 1405343643196929536, 16350+4317, USNO-B1.0 1332-00305959, G180-063, LHS 6309, GJ 3965, LSPM J1635+4317, PM J16350+4317, UCAC2 46709018

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H 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 Zuckerman et al. 2011 Holberg et al. 2008 Farihi et al. 2008 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 16 35 01.76 (0.01) 16 35 01.75 (0.02) 16 35 01.75 (0.02) 16 35 01.20 16 35 01.76 16 35 01.43 (0.01) 16 35 01.75 16 35 00.10
Declination 43 17 31.52 (0.01) 43 17 31.67 (0.02) 43 17 31.67 (0.02) 43 17 34.80 43 17 31.52 43 17 36.35 (0.01) 43 17 31.67 43 17 41.64
Spectral type DAZ DAZ DAZ DAZ DAZ DAZ DAZ DAZ DAZ7.7 DAZ DA DAZ DAZ DAZ DAZ DA DA DAZ7.6 DA8
Effective temperature [K] 6516.0 (36) 6543.0 (10) 6498.1 (19) 6525.0 (35) 6537.0 6625.0 (61) 6609.0 (148) 6560.0 (112) 6608.0 6608.0 (148) 6650.0 (112) 6600.0 6690.0 6569.0 6650.0 (150) 6610.0 (16)
log(g) [cgs] 8.15 (0.01) 8.15 (0.002) 8.15 (0.008) 8.17 (0.01) 8.17 7.92 (0.1) 8.11 (0.06) 7.93 (0.1) 8.14 (0.06) 8.07 (0.1) 8.08 8.08 8.14 (0.07) 8.19 (0.004)
Mass [M☉] 0.685 (0.009) 0.671 (0.003) 0.699 (0.009) 0.697 0.66 (0.04) 0.55 (0.08) 0.68 (0.04) 0.63 (0.09) 0.68 (0.04) 0.706 (0.004)
log(Luminosity) [L☉] -3.53 -3.63 -3.63 (0.04)
Cooling age [Gyr] 2.6100 2.6340 (0.1) 2.5950 2.3100 2.3100 2.2800 (0.3)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -9.2 -8.63 -8.63 -8.627
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H) -7.55
log(Al/H) -8.72
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H) -7.88
log(Ni/H)
Parallax [mas] 68.99 (0.02) 68.99 (0.02) 68.97 (0.02) 68.97 (0.02) 68.97 (0.02) 68.97 (0.02) 66.20 (3) 66.20 (3) 66.20 (3) 66.20 (3) 66.20 (3) 68.99 68.99 (0.02) 68.97 (0.02) 66.50 (3)
Distance [pc] 14.49 (0.003) 14.49 (0.004) 14.50 (0.004) 14.50 (0.004) 14.50 (0.004) 14.50 (0.004) 15.10 (0.7) 15.11 (0.7) 15.10 (0.7) 15.10 15.10 (0.7) 15.00 15.11 15.11 (0.7) 14.49 14.49 (0.003) 14.50 (0.004) 15.04 (0.7)
Composition H H H H H H H H H H H
Proper motion (right ascension) [mas/yr] 226.112075 (0.02) 226.1724734 (0.03) 226.112 (0.02) 226.1724734
Proper motion (declination) [mas/yr] -301.8456364 (0.02) -301.7771923 (0.03) -301.846 (0.02) -301.7771923
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 15.27 15.27 15.26
V magnitude 14.83 14.84 14.84 14.84
R magnitude 14.57 14.57 14.50
I magnitude 14.28 14.28
J magnitude 13.90 (0.003) 13.99 (0.03) 13.95 13.92 13.95 13.99 (0.03)
H magnitude 13.77 (0.04) 13.77 (0.04) 13.76 13.79 13.76 13.77 (0.04)
K magnitude 13.61 (0.04) 13.61 (0.04) 13.73 13.63 13.73 13.61 (0.04)
u magnitude 15.65 (0.005) 15.64 (0.005) 15.64 (0.005) 15.59
g magnitude 14.97 (0.002) 14.98 (0.004) 14.99
r magnitude 14.75 (0.003) 14.73 (0.004) 14.73
i magnitude 14.68 (0.002) 14.65 (0.004) 14.66
z magnitude 14.69 (0.004) 14.68 (0.005) 14.69
G magnitude 14.72 (0.001) 14.73 14.73 14.72 14.72 (0.003) 14.73
BP magnitude 14.95 (0.001) 14.95 14.95
RP magnitude 14.33 (0.001) 14.34 14.34
Pan g magnitude 14.97 (0.002) 14.97 (0.002) 14.97 (0.002)
Pan r magnitude 14.75 (0.002) 14.75 (0.003) 14.75 (0.003)
Pan i magnitude 14.68 (0.002) 14.68 (0.002) 14.68 (0.002)
Pan z magnitude 14.69 (0.004) 14.69 (0.004) 14.69 (0.004)
Pan y magnitude 14.72 (0.005) 14.72 (0.007) 14.72 (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.