LP 267-311

All names: LSPM J1254+3620, NLTT 32251, Gaia EDR3 1517239773324267904, USNO-B1.0 1263-00206662, PM J12541+3620, WDJ125411.51+362058.45, TIC 17664674, WD 1251+366, SDSS J125411.37+362058.3, J1254+3620, SDSS J125411.36+362058.3, 12541+3620, Gaia DR2 1517239773324267904, Gaia DR3 1517239773324267904, LP 267-311, PSO J193.5458+36.3494, 2MASS J12541155+3620582

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H MWDD HE 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 12 54 10.97 (0.05) 12 54 10.98 (0.07) 12 54 10.98 (0.07) 12 54 10.97 12 54 11.51 (0.05) 12 54 10.98 12 54 11.42
Declination 36 20 58.08 (0.05) 36 20 58.09 (0.06) 36 20 58.09 (0.06) 36 20 58.08 36 20 58.45 (0.05) 36 20 58.09 36 20 50.64
Spectral type DC DC DC DC DC DC DC DC DC: DC DC
Effective temperature [K] 4783.0 (16) 4726.0 (34) 4752.0 (14) 4706.0 (29) 4445.0 (65) 4801.0 4479.0 4790.0 (52) 4842.0 (20)
log(g) [cgs] 7.85 (0.008) 7.80 (0.02) 7.84 (0.008) 7.81 (0.02) 7.62 (0.03) 7.86 7.62 8.00 (0) 7.89 (0.01)
Mass [M] 0.49 (0.007) 0.462 (0.006) 0.486 (0.006) 0.367 (0.01) 0.498 0.368 0.58 (0.1) 0.513 (0.009)
log(Luminosity) [L] -4.12
Cooling age [Gyr] 5.2900 3.7770 (0.3) 5.0200 3.7030
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] 35.03 (0.07) 35.03 (0.07) 35.02 (0.09) 35.02 (0.09) 35.02 (0.09) 35.02 (0.09) 35.03 35.03 (0.07) 35.02 (0.09)
Distance [pc] 28.55 (0.06) 28.55 (0.06) 28.56 (0.07) 28.55 (0.07) 28.55 (0.07) 28.55 (0.07) 26.80 (3) 28.55 28.55 (0.06) 28.55 (0.07)
Composition H H He H
Proper motion (right ascension) [mas/yr] -407.6461154 (0.04) -407.8424081 (0.1) -407.646 (0.04) -407.8424081
Proper motion (declination) [mas/yr] -22.81914423 (0.05) -22.8820496 (0.1) -22.819 (0.05) -22.8820496
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.10
V magnitude
R magnitude 16.70
I magnitude
J magnitude 15.81 (0.01) 15.90 (0.06) 15.90 15.90 (0.06)
H magnitude 15.72 (0.1) 15.72 (0.1) 15.72 15.72 (0.1)
K magnitude 15.40 (0.1) 15.40 (0.1) 15.40 15.40 (0.1)
u magnitude 19.78 (0.03) 19.74 19.68 (0.03) 19.68 (0.03)
g magnitude 17.93 17.81 (0.01) 17.92 (0.006)
r magnitude 17.15 17.12 (0.005) 17.12 (0.005)
i magnitude 16.83 16.84 (0.003) 16.83 (0.005)
z magnitude 16.66 16.74 (0.005) 16.72 (0.009)
G magnitude 17.16 (0.006) 17.18 17.18 17.16 17.16 (0.003) 17.18
BP magnitude 17.70 (0.006) 17.71 17.71
RP magnitude 16.49 (0.004) 16.50 16.50
Pan g magnitude 17.82 (0.006) 17.82 (0.006) 17.82 (0.01)
Pan r magnitude 17.11 (0.004) 17.11 (0.004) 17.12 (0.01)
Pan i magnitude 16.83 (0.004) 16.83 (0.004) 16.84 (0.003)
Pan z magnitude 16.74 (0.004) 16.74 (0.004) 16.74 (0.005)
Pan y magnitude 16.69 (0.005) 16.69 (0.005) 16.78 (0.09)
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.