GJ 699.1

All names: WISEA J174942.15+824700.8, PLX 4149.01, UBV M 43019, WD 1756+827, TIC 288405379, LP 9-231, G 259-21, Gaia DR2 1711005951573009792, GEN# +9.80259021, uvby98 980259021, UBV 15423, GJ 699.1, PM J17498+8246, LSPM J1749+8246, USNO-B1.0 1727-00046963, UBV M 53839, CSI+82-17576, NLTT 45755, EGGR 199, LHS 56, WDJ174950.15+824626.06, CNS5 4412, USNO 61, Gaia EDR3 1711005951573009792, GJ 9610, WD 1756+82, J1749+8247, Gaia DR3 1711005951573009792, 2MASS J17495059+8246242, PSO J267.4224+82.7845, CSI+82-17570, G259-21, 17498+8246

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery 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 Holberg 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 17 49 37.96 (0.01) 17 49 38.34 (0.01) 17 49 38.34 (0.01) 17 49 49.92 17 49 37.96 17 49 50.15 (0.01) 17 49 38.34 17 50 12.96
Declination 82 47 19.10 (0.01) 82 47 17.45 (0.02) 82 47 17.45 (0.02) 82 46 22.80 82 47 19.10 82 46 26.06 (0.01) 82 47 17.45 82 44 42.72
Spectral type DA DA DA DA DA DA DA DA6.9 DA DA DA DA DA DA DA6.8 DA7
Effective temperature [K] 7188.0 (47) 7260.0 (0) 7202.8 (28) 7170.0 (45) 7227.0 (106) 7215.0 (146) 7230.0 (106) 7214.0 7214.0 (146) 7380.0 (109) 7087.0 7270.0 (330) 7259.0 (19)
log(g) [cgs] 7.87 (0.02) 7.90 (0) 7.88 (0.01) 7.88 (0.01) 7.89 (0.07) 7.88 (0.07) 7.89 (0.07) 7.97 (0.07) 7.97 (0.07) 7.85 7.98 (0.07) 7.89 (0.004)
Mass [M] 0.517 (0.01) 0.535 (0) 0.522 (0.008) 0.55 (0.1) 0.53 (0.03) 0.53 (0.04) 0.58 (0.04) 0.57 (0.04) 0.58 (0.04) 0.531 (0.004)
log(Luminosity) [L] -3.34 -3.39 -3.38 (0.04)
Cooling age [Gyr] 1.2400 1.2040 (0.03) 1.2700 1.3600 1.3500 (0.1)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-11.585
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] 61.18 (0.01) 61.18 (0.01) 61.16 (0.02) 61.16 (0.02) 61.16 (0.02) 61.16 (0.02) 63.90 (3) 63.90 (3) 63.90 (3) 63.90 (3) 63.90 (3) 61.18 61.18 (0.01) 61.16 (0.02) 57.00 (5)
Distance [pc] 16.35 (0.003) 16.35 (0.003) 16.35 (0.005) 16.35 (0.004) 16.35 (0.004) 16.35 (0.004) 16.90 (1) 15.65 (0.7) 15.60 (0.7) 15.64 15.70 (0.7) 17.00 15.55 15.65 (0.7) 16.35 16.35 (0.003) 16.35 (0.004) 17.54 (2)
Composition H H H H H H H H H
Proper motion (right ascension) [mas/yr] -1436.907761 (0.01) -1436.862836 (0.03) -1436.908 (0.01) -1436.862836
Proper motion (declination) [mas/yr] 3314.437236 (0.02) 3314.402075 (0.03) 3314.437 (0.02) 3314.402075
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.69 14.69 14.92
V magnitude 14.31 14.34 14.34
R magnitude 14.12 14.12 14.50
I magnitude 13.87 13.87
J magnitude 13.63 (0.03) 13.63 (0.03) 13.63 13.63 (0.03)
H magnitude 13.47 (0.03) 13.47 (0.03) 13.47 13.47 (0.03)
K magnitude 13.43 (0.05) 13.43 (0.05) 13.43 13.43 (0.05)
u magnitude
g magnitude 14.40 (0.002)
r magnitude 14.25 (0.005)
i magnitude 14.25 (0.0008)
z magnitude 14.28 (0.002)
G magnitude 14.22 (0.001) 14.23 14.23 14.22 14.22 (0.003) 14.23
BP magnitude 14.39 (0.001) 14.39 14.39
RP magnitude 13.90 (0.0008) 13.92 13.92
Pan g magnitude 14.43 (0.0001) 14.43 (0.0001) 14.40 (0.002)
Pan r magnitude 14.23 (0.001) 14.23 (0.001) 14.25 (0.005)
Pan i magnitude 14.22 (0.002) 14.22 (0.002) 14.25 (0.001)
Pan z magnitude 14.27 (0.003) 14.27 (0.003) 14.28 (0.002)
Pan y magnitude 14.32 (5e-05) 14.32 (5e-05) 14.32 (0.003)
E(B-V) 0.000

* 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.