Wolf 672 A

All names: WDS J17187+0157A, Gaia DR2 4387171623850187648, WD 1716+020, PM J17185+0156N, LTT 15125, USNO 340, UCAC4 460-064257, 17185+0156N, LAWD 67, ** LDS 991A, WDJ171835.16+015653.21, G19-20, Gaia EDR3 4387171623850187648, LHS 3278, LAMOST J171835.17+015653.2, TIC 345065584, NLTT 44548, WD 1716+02, WDS J17208+0156A, CSI+02-17161 2, Ci 20 1031, JP11 5095, UCAC2 32393830, USNO-B1.0 0919-00355826, UBV 14748, Wolf 672, LSPM J1718+0156N, 2MASS J17183515+0156531, Gaia DR3 4387171623850187648, GEN# +9.80019020, Wolf 672 A, UBV M 42664, EGGR 123, G 19-20, LFT 1339

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 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 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 17 18 34.70 (0.02) 17 18 34.71 (0.03) 17 18 34.71 (0.03) 17 18 34.70 17 18 35.16 (0.02) 17 18 34.71 17 18 36.50
Declination 01 56 48.64 (0.01) 01 56 48.78 (0.03) 01 56 48.78 (0.03) 01 56 48.64 01 56 53.20 (0.01) 01 56 48.78 01 57 06.48
Spectral type DA DA DA DA DA DA DA DA DA3.7 DA4
Effective temperature [K] 12685.0 (185) 12461.6 (114) 12480.0 13255.0 (268) 13550.0 (345) 13630.0 (342) 13644.0 (39) 13620.0 13470.0 (900) 13003.0 (63)
log(g) [cgs] 7.91 (0.01) 7.89 (0.01) 7.89 7.88 (0.05) 7.91 (0.05) 7.89 (0.05) 7.64 (0.004) 7.79 8.11 (0.1) 7.94 (0.004)
Mass [M☉] 0.558 (0.009) 0.547 0.56 (0.2) 0.56 (0.03) 0.55 (0.03) 0.67 (0.08) 0.571 (0.003)
log(Luminosity) [L☉] -2.24 -2.37 (0.09)
Cooling age [Gyr] 0.2920 0.3200 (0.06)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-8.536
log(Li/H)
log(Be/H)
log(B/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(Cl/H)
log(K/H)
log(Sc/H)
log(Ti/H)
log(V/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Co/H)
log(Ni/H)
log(Cu/H)
log(Sr/H)
Parallax [mas] 26.20 (0.03) 26.20 (0.03) 26.07 (0.04) 26.07 (0.04) 28.10 (3) 28.10 (3) 26.20 26.20 (0.03) 26.07 (0.04) 25.00
Distance [pc] 38.17 (0.04) 38.17 (0.04) 38.36 (0.07) 38.36 (0.07) 40.80 (7) 35.60 (3) 39.00 35.59 (3) 38.17 38.17 (0.04) 38.36 (0.07) 40.00
Composition H H H H H
Proper motion (right ascension) [mas/yr] -436.0683348 (0.02) -436.0313725 (0.08) -436.068 (0.02) -436.0313725
Proper motion (declination) [mas/yr] -285.3538734 (0.02) -285.4578914 (0.08) -285.354 (0.02) -285.4578914
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity DDU
B magnitude 14.48
V magnitude 14.26 14.36
R magnitude 14.40 14.63 (0.08)
I magnitude 14.40
J magnitude 14.68 14.60 (0.06)
H magnitude 14.65 14.53 (0.07)
K magnitude 14.71 14.56 (0.1)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.40 (0.0008) 14.41 14.41 14.40 14.40 (0.003) 14.41
BP magnitude 14.39 (0.0008) 14.38 14.38
RP magnitude 14.44 (0.001) 14.44 14.44
Pan g magnitude 14.33 (0.002)
Pan r magnitude 14.55 (0.006)
Pan i magnitude 14.76 (0.008)
Pan z magnitude 14.73 (0.002)
Pan y magnitude 14.91 (0.06)
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.