GJ 1211

All names: NLTT 44219, GALEX J170807.9+025734, Gaia EDR3 4388138816124225792, J1708+0257, USNO 255, 2MASS J17080796+0257369, G139-013, WD 1705+03, 17081+0257, Gaia DR2 4388138816124225792, GJ 1211, EGGR 494, PLX 3889.01, WD 1705+030, WISEA J170807.95+025732.8, PSO J257.0331+02.9590, WDJ170807.97+025737.08, uvby98 980139013, CNS5 4196, LSPM J1708+0257, G139-13, TIC 297505272, USNO-B1.0 0929-00373355, Gaia DR3 4388138816124225792, G 139-13, UBV M 53792, PM J17081+0257, GEN# +9.80139013

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Coutu et al. 2019 Blouin et al. 2019 Gaia DR2 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Holberg et al. 2008 Dufour et al. 2007 Koester 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 17 08 07.95 (0.02) 17 08 07.95 (0.03) 17 08 07.97 17 08 07.95 (0.03) 17 08 07.92 17 08 07.95 17 08 07.97 (0.02) 17 08 07.95 17 08 07.37
Declination 02 57 30.72 (0.01) 02 57 30.92 (0.02) 02 57 37.08 02 57 30.92 (0.02) 02 57 36.00 02 57 30.72 02 57 37.08 (0.01) 02 57 30.92 02 57 45.72
Spectral type DZ DZ DZ DZ DZ DZ DZ DZ7.7 DZ DZ DZ DZ DZ DZ DZ7 DZ6
Effective temperature [K] 6720.0 (44) 6259.0 (16) 6725.5 (17) 6396.0 (262) 6035.0 (85) 6585.0 (207) 6650.0 (153) 6584.0 6584.0 (207) 6580.0 (200) 6200.0 7050.0 (180) 6561.0 (13)
log(g) [cgs] 8.24 (0.02) 8.07 (0.005) 8.11 (0.008) 8.11 8.05 (0.1) 8.15 (0.1) 8.21 (0.1) 8.18 (0.1) 8.20 (0.1) 8.00 8.35 (0.1) 8.17 (0.003)
Mass [M] 0.728 (0.01) 0.616 (0.005) 0.6416 0.606 (0.09) 0.69 (0.09) 0.7 (0.09) 0.68 (0.09) 0.7 (0.09) 0.8 (0.09) 0.679 (0.003)
log(Luminosity) [L] -3.68 -3.67 -3.66 (0.08)
Cooling age [Gyr] 2.4800 2.5200 2.8120 (0.9) 2.5400 2.7500 3.1100 (0.6)
log(H/He) -4.0 <-3.1973 -4.1 -3.55 (0.1)
log(C/He)
log(Ca/He) -10.01 -9.9255 (0.02) -10.09 -10.27 -10.05 (0.05) -10.2
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 56.04 (0.03) 56.04 (0.03) 55.97 (0.03) 55.97 (0.03) 55.97 55.97 (0.03) 55.97 (0.03) 57.00 (5) 57.00 (5) 57.00 (5) 57.00 (5) 57.00 (5) 56.04 56.04 (0.03) 55.97 (0.03) 57.30 (6)
Distance [pc] 17.85 (0.008) 17.84 (0.01) 17.87 (0.01) 17.87 (0.01) 17.87 (0.01) 17.87 (0.01) 17.87 (0.01) 17.54 (2) 17.50 (2) 17.54 17.50 (2) 17.06 17.54 (2) 17.85 17.85 (0.008) 17.87 (0.01) 17.45 (2)
Composition He He He He He He He He He He He
Proper motion (right ascension) [mas/yr] -11.92989057 (0.03) -11.89011713 (0.06) -11.93 (0.03) -11.89011713
Proper motion (declination) [mas/yr] -397.7809239 (0.02) -397.7970286 (0.05) -397.781 (0.02) -397.7970286
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.63 15.63 15.65
V magnitude 15.19 15.20 15.20
R magnitude 14.96 14.96 14.50
I magnitude 14.74 14.74
J magnitude 14.60 (0.004) 14.56 (0.03) 14.62 14.62 14.56 (0.03)
H magnitude 14.50 (0.03) 14.50 (0.03) 14.50 14.50 14.50 (0.03)
K magnitude 14.51 (0.08) 14.51 (0.08) 14.48 14.48 14.51 (0.08)
u magnitude
g magnitude 15.28 (0.008)
r magnitude 15.12 (0.006)
i magnitude 15.12 (0.006)
z magnitude 15.20 (0.002)
G magnitude 15.10 (0.001) 15.11 15.11 15.10 15.10 (0.003) 15.11
BP magnitude 15.29 (0.001) 15.29 15.29
RP magnitude 14.78 (0.0009) 14.78 14.78
Pan g magnitude 15.28 (0.008) 15.28 (0.0008) 15.28 (0.008)
Pan r magnitude 15.12 (0.006) 15.12 (0.007) 15.12 (0.006)
Pan i magnitude 15.12 (0.005) 15.12 (0.004) 15.12 (0.006)
Pan z magnitude 15.20 (0.002) 15.20 (0.003) 15.20 (0.002)
Pan y magnitude 15.25 (0.009) 15.25 (0.004) 15.25 (0.008)
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.