Ross 203

All names: WD 2133-135, CNS5 5319, 2MASS J21361637-1318344, Gaia DR3 6842831888437047680, Ross 203, GALEX J213616.4-131834, HE 2133-1332, UCAC3 154-347913, PPMX J213616.3-131834, J2136-1318, WDJ213616.39-131834.50, USNO-B1.0 0766-00711052, WISEA J213616.57-131836.0, GEN# +6.10220203, TIC 242046549, Gaia EDR3 6842831888437047680, NLTT 51636, EC 21335-1332, Gaia DR2 6842831888437047680, UCAC4 384-154813

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Gaia DR2 Bedard et al. 2017 Subasavage et al. 2017 Stilism Holberg et al. 2016 Koester et al. 2009 Subasavage et al. 2008 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 36 16.67 (0.02) 21 36 16.67 (0.05) 21 36 16.39 21 36 16.38 21 36 16.67 21 36 16.39 (0.02) 21 36 16.67 21 36 16.20
Declination -13 18 36.78 (0.02) -13 18 36.71 (0.05) -13 18 03.05 -13 18 34.50 -13 18 36.78 -13 18 34.50 (0.02) -13 18 36.71 -13 18 25.92
Spectral type DA DA DA DA DA DA5.0 DA DA5.0 DA
Effective temperature [K] 9928.0 (78) 9883.0 (12) 10193.0 (149) 10060.0 (270) 10131.0 (158) 9851.0 (5) 10182.0 (281) 9893.0 (31)
log(g) [cgs] 7.74 (0.01) 7.72 (0.002) 7.86 (0.05) 7.69 (0.05) 7.76 (0.01) 7.80 (0.005) 7.72 (0.005)
Mass [M] 0.465 (0.002) 0.452 (0.002) 0.44 (0.03) 0.48 (0) 0.452 (0.004)
log(Luminosity) [L] -2.65 (0.06)
Cooling age [Gyr] 0.4600 0.4100 (0.04) 0.4700
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] 42.72 (0.02) 42.72 (0.02) 42.67 (0.05) 42.67 (0.05) 40.56 (1) 42.72 42.72 (0.02) 42.67 (0.05) 49.00
Distance [pc] 23.41 (0.01) 23.41 (0.01) 23.44 (0.03) 23.43 (0.03) 24.70 (0.8) 24.65 (0.8) 23.81 (0.2) 20.40 23.41 23.41 (0.01) 23.43 (0.03) 20.41
Composition H H H H
Proper motion (right ascension) [mas/yr] 263.2905407 (0.02) 263.5839181 (0.09) 263.291 (0.02) 263.5839181
Proper motion (declination) [mas/yr] -142.0758509 (0.02) -142.0627754 (0.08) -142.076 (0.02) -142.0627754
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.94 13.91 (0.01)
V magnitude 13.68 13.68 13.65 (0.01)
R magnitude 13.63 14.01 (0.2)
I magnitude 13.55
J magnitude 13.55 (0.002) 13.60 (0.03) 13.60 (0.03) 13.60 (0.03)
H magnitude 13.58 (0.04) 13.58 (0.04) 13.58 (0.04) 13.58 (0.04)
K magnitude 13.54 (0.004) 13.69 (0.06) 13.69 (0.06) 13.69 (0.06)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.65 (0.0007) 13.68 13.65 13.65 (0.003) 13.68
BP magnitude 13.71 (0.0007) 13.71 13.71
RP magnitude 13.57 (0.0008) 13.58 13.58
Pan g magnitude 13.67 (0.001) 13.67 (0.001)
Pan r magnitude 13.75 (0.001) 13.75 (0.001)
Pan i magnitude 13.89 (0.004) 13.89 (0.003)
Pan z magnitude 14.06 (0.003) 14.06 (0.002)
Pan y magnitude 14.16 (0.003) 14.16 (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.