GJ 1201

All names: TIC 318945751, Gaia DR3 4452521234885949184, CNS5 4033, GJ 1201, WD 1625+093, USNO-B1.0 0992-00269959, WDJ162753.49+091216.02, G138-031, PLX 3740.04, LSPM J1627+0912, USNO 750, PM J16278+0912, GEN# +9.80138031, J1627+0912, NLTT 42858, 16278+0912, GALEX J162753.4+091213, PSO J246.9725+09.2030, Gaia EDR3 4452521234885949184, EGGR 327, G 138-31, LHS 6305, 2MASS J16275347+0912159, G138-31, Gaia DR2 4452521234885949184, USNO 335, WD 1625+09

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 Gianninas et al. 2011 Koester et al. 2009 Bergeron et al. 2001 Bergeron et al. 1997 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 16 27 53.38 (0.03) 16 27 53.39 (0.03) 16 27 53.39 (0.03) 16 27 53.28 16 27 53.38 16 27 53.49 (0.03) 16 27 53.39 16 27 53.76
Declination 09 12 08.49 (0.03) 09 12 08.73 (0.03) 09 12 08.73 (0.03) 09 12 14.40 09 12 08.49 09 12 16.02 (0.03) 09 12 08.73 09 12 35.28
Spectral type DA DA DA DA DA DA DA DA DA7.3 DA DA DA DA6.9 DC8
Effective temperature [K] 6800.0 (47) 6865.0 (12) 6784.1 (27) 6780.0 (60) 6878.0 7129.0 (134) 7271.0 (146) 7130.0 (134) 7038.0 7270.0 (146) 6380.0 (8) 6870.0 (170) 6810.0 (180) 6862.0 (29)
log(g) [cgs] 8.34 (0.02) 8.37 (0.003) 8.34 (0.01) 8.35 (0.02) 8.37 8.60 (0.2) 8.73 (0.2) 8.60 (0.2) 8.81 (0.2) 7.42 (0.02) 8.44 (0.1) 8.43 (0.1) 8.36 (0.007)
Mass [M] 0.809 (0.01) 0.826 (0.003) 0.817 (0.01) 0.829 1.1 (0.5) 1.04 (0.1) 0.98 (0.1) 1.1 (0.09) 0.88 (0.07) 0.87 (0.08) 0.82 (0.006)
log(Luminosity) [L] -3.81 -3.76 (0.07) -3.77 (0.07)
Cooling age [Gyr] 3.5600 3.4400 (0.1) 3.4140 3.6500 3.7400 (0.5) 3.8200 (0.4)
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] 39.86 (0.04) 39.86 (0.04) 39.88 (0.05) 39.88 (0.05) 39.88 (0.05) 39.88 (0.05) 42.80 (4) 42.80 (4) 42.80 (4) 42.80 (4) 39.86 39.86 (0.04) 39.88 (0.05) 45.30 (60)
Distance [pc] 25.09 (0.03) 25.09 (0.03) 25.08 (0.03) 25.08 (0.03) 25.08 (0.03) 25.08 (0.03) 23.40 (2) 23.36 (2) 23.40 (2) 23.36 19.00 23.36 (2) 23.36 (2) 25.09 25.09 (0.03) 25.08 (0.03) 22.08 (29)
Composition H H H H H H H H H
Proper motion (right ascension) [mas/yr] -96.73016446 (0.04) -96.72131515 (0.07) -96.73 (0.04) -96.72131515
Proper motion (declination) [mas/yr] -470.6032792 (0.03) -470.5748533 (0.05) -470.603 (0.03) -470.5748533
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.48 16.47 16.48
V magnitude 16.14 16.14 16.14 16.15 16.12
R magnitude 15.87 15.88 15.90
I magnitude 15.62 15.62 15.68
J magnitude 15.32 (0.007) 15.25 (0.06) 15.34 15.34 15.25 (0.06)
H magnitude 15.19 (0.1) 15.19 (0.1) 15.12 15.12 15.19 (0.1)
K magnitude 15.04 (0.1) 15.04 (0.1) 15.06 15.06 15.04 (0.1)
u magnitude 16.84 (0.008) 16.83 (0.007) 16.81
g magnitude 16.25 (0.008) 16.26 (0.004) 16.27
r magnitude 16.05 (0.01) 16.06 (0.004) 16.04
i magnitude 16.05 (0.003) 15.99 (0.005) 15.89
z magnitude 16.04 (0.009) 16.03 (0.007) 16.02
G magnitude 16.03 (0.003) 16.04 16.04 16.03 16.03 (0.003) 16.04
BP magnitude 16.24 (0.003) 16.23 16.23
RP magnitude 15.68 (0.002) 15.68 15.68
Pan g magnitude 16.25 (0.008) 16.24 (0.001) 16.25 (0.008)
Pan r magnitude 16.05 (0.01) 16.06 (0.003) 16.05 (0.01)
Pan i magnitude 16.05 (0.003) 16.01 (0.002) 16.05 (0.003)
Pan z magnitude 16.04 (0.009) 16.05 (0.003) 16.04 (0.009)
Pan y magnitude 16.08 (0.003) 16.10 (0.01) 16.08 (0.003)
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.