All names: SDSS J115434.57+242238.9, WIRED J115434.57+242239.0, J1154+2422, LAMOST J115434.56+242238.5, LAMOST J115434.57+242239.0, Gaia EDR3 4004395720290994048, PM J11545+2422, WD 1151+246, 11545+2422, GALEX J115434.5+242239, WDJ115434.57+242239.72, Gaia DR2 4004395720290994048, 2MASS J11543457+2422397, Gaia DR3 4004395720290994048, WD 1152+246, TIC 138893463, SDSS J115434.58+242239.0, HIDDEN NAME WD 1151+246, SDSS J115434.57+242239.0, SDSS J115434.58+242239.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Limoges et al. 2015 | Sayres et al. 2012 | 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 | 11 54 34.57 (0.03) | 11 54 34.57 | 11 54 34.57 (0.04) | 11 54 34.57 (0.04) | 11 54 34.58 | 11 54 34.57 | 11 54 34.57 (0.03) | 11 54 34.57 | 11 54 34.66 | 11 54 34.58 | ||||||||||
| Declination | 24 22 37.76 (0.03) | 24 22 39.04 | 24 22 37.82 (0.04) | 24 22 37.82 (0.04) | 24 22 39.50 | 24 22 37.76 | 24 22 39.72 (0.03) | 24 22 37.82 | 24 22 36.48 | 24 22 39.05 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA5.5 | DA | DA5.5 | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 8699.0 (85) | 8864.0 (32) | 8647.8 (44) | 8626.0 | 8331.0 | 8790.0 (141) | 8700.0 (30) | 8530.0 (56) | 8576.0 (16) | ||||||||||
| log(g) | [cgs] | 8.49 (0.02) | 8.52 (0.005) | 8.49 (0.01) | 8.48 | 8.40 | 8.57 (0.09) | 8.74 (0.03) | 8.46 (0.009) | 8.61 (0.02) | ||||||||||
| Mass | [M☉] | 0.913 (0.01) | 0.932 (0.004) | 0.905 | 0.833 | 0.96 (0.06) | 0.894 (0.008) | 0.973 (0.01) | ||||||||||||
| log(Luminosity) | [L☉] | -3.42 | ||||||||||||||||||
| Cooling age | [Gyr] | 2.3200 | 2.1980 | 2.0640 | ||||||||||||||||
| 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] | 37.69 (0.04) | 37.69 (0.04) | 37.59 (0.06) | 37.59 (0.06) | 37.59 (0.06) | 37.69 | 37.69 (0.04) | 37.59 (0.06) | |||||||||||
| Distance | [pc] | 26.53 (0.03) | 26.53 (0.03) | 26.60 (0.04) | 26.60 (0.04) | 26.60 (0.04) | 25.20 (0.7) | 39.70 | 26.53 | 26.53 (0.03) | 26.60 (0.04) | |||||||||
| Composition | H | H | H | H | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.853374408 (0.04) | -0.87893281 (0.1) | -0.853 (0.04) | -0.879 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -122.7295784 (0.03) | -122.7265315 (0.09) | -122.73 (0.03) | -122.727 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | ||||||||||||||||||||
| V magnitude | 15.26 | |||||||||||||||||||
| R magnitude | ||||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 15.25 (0.006) | 15.24 | 15.24 (0.04) | 15.24 (0.04) | ||||||||||||||||
| H magnitude | 15.11 (0.07) | 15.11 | 15.11 (0.07) | 15.11 (0.07) | ||||||||||||||||
| K magnitude | 15.40 (0.2) | 15.40 | 15.40 (0.2) | 15.40 (0.2) | ||||||||||||||||
| u magnitude | 15.93 (0.005) | 15.93 (0.005) | 15.94 | 15.94 (0.005) | 15.93 (0.005) | 15.93 (0.005) | 15.95 (0.01) | |||||||||||||
| g magnitude | 15.59 (0.003) | 15.60 | 15.60 (0.004) | 15.59 (0.003) | 15.59 (0.003) | 15.63 (0.03) | ||||||||||||||
| r magnitude | 15.60 (0.004) | 15.61 | (0.004) | 15.60 (0.004) | 15.60 (0.004) | 15.60 (0.02) | ||||||||||||||
| i magnitude | 15.65 (0.005) | 15.66 | 15.66 (0.004) | 15.65 (0.005) | 15.65 (0.005) | 15.66 (0.02) | ||||||||||||||
| z magnitude | 15.79 (0.006) | 15.80 | 15.80 (0.006) | 15.79 (0.006) | 15.79 (0.006) | 15.81 (0.02) | ||||||||||||||
| G magnitude | 15.55 (0.002) | 15.57 | 15.57 | 15.55 | 15.55 (0.003) | 15.57 | ||||||||||||||
| BP magnitude | 15.65 (0.002) | 15.64 | 15.64 | |||||||||||||||||
| RP magnitude | 15.36 (0.002) | 15.37 | 15.37 | |||||||||||||||||
| Pan g magnitude | 15.63 (0.003) | 15.63 (0.003) | ||||||||||||||||||
| Pan r magnitude | 15.63 (0.002) | 15.63 (0.002) | ||||||||||||||||||
| Pan i magnitude | 15.69 (0.003) | 15.69 (0.003) | ||||||||||||||||||
| Pan z magnitude | 15.80 (0.003) | 15.80 (0.003) | ||||||||||||||||||
| Pan y magnitude | 15.88 (0.008) | 15.88 (0.006) | ||||||||||||||||||
| 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.