WD 1201-001

All names: Gaia DR3 3698872156539379968, GALEX J120347.4-002311, SDSS J120347.37-002311.1, PG 1201-001, 2MASS J12034742-0023109, USNO-B1.0 0896-00211711, SDSS J120347.42-002310.9, SDSS J120347.38-002311.1, TIC 35091113, WD1201-001, WDJ120347.43-002310.94, Gaia DR2 3698872156539379968, SDSS J120347.43-002310.9, WD 1201-001, J1203-0023, WIRED J120347.42-002310.9, Gaia EDR3 3698872156539379968

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Liebert et al. 2005 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 03 47.31 (0.04) 12 03 47.38 12 03 47.32 (0.06) 12 03 47.50 12 03 47.31 12 03 47.43 (0.04) 12 03 47.32 12 03 46.75 12 03 47.43
Declination -00 23 11.38 (0.03) -00 23 11.14 -00 23 11.37 (0.04) -00 23 12.00 -00 23 11.38 -00 23 10.94 (0.03) -00 23 11.37 -00 23 00.24 -00 23 10.92
Spectral type DA DA DA DA DA DA DA2.4 DA DA2.5 DA DA
Effective temperature [K] 20083.0 (217) 20081.0 (216) 17760.0 20600.0 (317) 19853.0 (27) 19770.0 (308) 19939.0 (49) 20393.0 (251) 20861.0 (78)
log(g) [cgs] 8.34 (0.008) 8.34 (0.009) 8.22 8.33 (0.05) 8.29 (0.005) 8.26 (0.05) 8.22 (0.01) 8.35 (0.009) 8.31 (0.01)
Mass [M] 0.829 (0.007) 0.832 (0.008) 0.753 0.83 (0.03) 0.78 (0.03) 0.76 0.838 (0.008) 0.8 (0.006)
log(Luminosity) [L] -1.79
Cooling age [Gyr] 0.1700 0.1549
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] 16.85 (0.04) 16.92 (0.09) 16.85 16.85 (0.04) 16.92 (0.09)
Distance [pc] 59.34 (0.1) 59.10 (0.3) 60.00 63.00 59.34 59.34 (0.1) 59.10 (0.3)
Composition H H H
Proper motion (right ascension) [mas/yr] -104.8749257 (0.06) -105.1262771 (0.1) -104.875 (0.06) -105.126
Proper motion (declination) [mas/yr] -27.88468365 (0.02) -27.97199409 (0.07) -27.885 (0.03) -27.972
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.13
V magnitude 15.12 15.17
R magnitude 15.60
I magnitude
J magnitude 15.65 (0.008)
H magnitude 15.68 (0.01)
K magnitude 15.82 (0.03)
u magnitude 15.01 (0.004) 15.01 (0.004) 15.04 (0.003) 15.11 (0.03)
g magnitude 14.97 (0.004) 14.97 (0.004) 15.00 (0.002) 15.00 (0.03)
r magnitude 15.34 (0.004) 15.34 (0.004) 15.37 (0.003) 15.39 (0.03)
i magnitude 15.65 (0.004) 15.65 (0.004) 15.65 (0.003) 15.62 (0.03)
z magnitude 15.96 (0.007) 15.96 (0.007) 15.94 (0.007) 15.96 (0.02)
G magnitude 15.17 (0.001) 15.19 15.17 15.17 (0.003) 15.19
BP magnitude 15.09 (0.001) 15.07 15.07
RP magnitude 15.36 (0.002) 15.35 15.35
Pan g magnitude 15.06 (0.003)
Pan r magnitude 15.37 (0.005)
Pan i magnitude 15.67 (0.004)
Pan z magnitude 15.93 (0.003)
Pan y magnitude 16.10 (0.005)
E(B-V) 0.002

* 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.