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
Spectra without link are available upon request
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.