2MASS J08554980+3700171

All names: PSO J133.9583+37.0043, Gaia EDR3 718682620012682112, Gaia DR3 718682620012682112, TIC 188503392, LSPM J0855+3700, J0855+3700, 08558+3700, Gaia DR2 718682620012682112, WD 0852+371, SDSS J085549.88+370016.6, 2MASS J08554980+3700171, USNO-B1.0 1270-00196381, WDJ085549.86+370016.78, PM J08558+3700

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 55 50.05 (0.08) 08 55 50.04 (0.09) 08 55 50.05 08 55 49.86 (0.08) 08 55 50.04 08 55 49.34
Declination 37 00 15.36 (0.05) 37 00 15.40 (0.07) 37 00 15.36 37 00 16.78 (0.05) 37 00 15.40 37 00 11.52
Spectral type DA DA DA DA DA DA DA DA ___8.9
Effective temperature [K] 5757.0 (19) 5768.0 (18) 5759.0 (19) 5480.0 (35) 5494.0 5620.0 (59) 5542.0 (39)
log(g) [cgs] 7.74 (0.01) 7.75 (0.01) 7.75 (0.01) 7.60 (0.03) 7.60 8.00 (0) 7.62 (0.02)
Mass [M] 0.441 (0.007) 0.447 (0.008) 0.447 (0.008) 0.373 (0.01) 0.375 0.58 (0.1) 0.382 (0.01)
log(Luminosity) [L] -3.84
Cooling age [Gyr] 1.8100 1.6660 (0.05) 1.6600
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] 18.95 (0.1) 19.09 (0.1) 19.09 (0.1) 19.09 (0.1) 18.95 18.95 (0.1) 19.09 (0.1)
Distance [pc] 52.76 (0.3) 52.38 (0.4) 52.38 (0.4) 52.38 (0.4) 43.40 (5) 52.76 52.76 (0.3) 52.38 (0.4)
Composition H H H H H
Proper motion (right ascension) [mas/yr] 143.4032262 (0.09) 143.4072708 (0.2) 143.403 (0.09) 143.4072708
Proper motion (declination) [mas/yr] -88.72109672 (0.08) -88.770738 (0.1) -88.721 (0.08) -88.770738
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90
V magnitude
R magnitude 17.10
I magnitude
J magnitude 16.37 (0.05) 16.51 (0.1) 16.51 16.37 (0.05)
H magnitude 16.17 (0.04) 16.18 (0.2) 16.17 16.17 (0.04)
K magnitude 16.08 (0.05) 15.85 (0.2) 15.85 16.08 (0.05)
u magnitude 18.80 (0.02) 19.06 18.82 (0.02) 19.03 (0.02) 19.01
g magnitude 17.98 17.92 (0.004) 17.95 (0.006) 17.97
r magnitude 17.48 17.48 (0.004) 17.48 (0.005) 17.47
i magnitude 17.29 17.29 (0.004) 17.28 (0.006) 17.29
z magnitude 17.25 17.25 (0.006) 17.23 (0.01) 17.27
G magnitude 17.49 (0.008) 17.51 17.49 17.49 (0.003) 17.51
BP magnitude 17.86 (0.008) 17.89 17.89
RP magnitude 16.96 (0.006) 16.96 16.96
Pan g magnitude 17.92 (0.004) 17.92 (0.004) 17.92 (0.004)
Pan r magnitude 17.48 (0.005) 17.48 (0.004) 17.48 (0.004)
Pan i magnitude 17.29 (0.004) 17.29 (0.003) 17.29 (0.003)
Pan z magnitude 17.25 (0.005) 17.25 (0.006) 17.25 (0.006)
Pan y magnitude 17.23 (0.008) 17.23 (0.007) 17.23 (0.007)
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.