All names: LSPM J1157+0854, 2MASS J11571286+0854578, Gaia EDR3 3899975238440888064, GALEX J115712.9+085458, SDSS J115712.90+085457.2, WD 1154+091, Gaia DR3 3899975238440888064, WDJ115712.86+085457.49, J1157+0854, Gaia DR2 3899975238440888064, USNO-B1.0 0989-00215841, TIC 380668968, SDSS J115712.89+085457.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 57 13.04 (0.08) | 11 57 13.04 (0.1) | 11 57 13.04 | 11 57 12.86 (0.08) | 11 57 13.04 | 11 57 11.95 | ||||||
| Declination | 08 54 56.18 (0.05) | 08 54 56.22 (0.08) | 08 54 56.18 | 08 54 57.49 (0.05) | 08 54 56.22 | 08 55 00.12 | ||||||
| Spectral type | DA | DA | DA | DA | DA | ? | ||||||
| Effective temperature | [K] | 6149.0 (28) | 6245.0 (25) | 6149.0 (28) | 6353.0 (59) | |||||||
| log(g) | [cgs] | 7.44 (0.01) | 7.51 (0.01) | 7.45 (0.01) | 7.54 (0.02) | |||||||
| Mass | [M☉] | 0.316 (0.006) | 0.343 (0.008) | 0.319 (0.008) | 0.358 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.1600 | ||||||||||
| 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] | 15.33 (0.09) | 15.39 (0.1) | 15.39 (0.1) | 15.33 | 15.33 (0.09) | 15.39 (0.1) | |||||
| Distance | [pc] | 65.22 (0.4) | 64.98 (0.6) | 64.97 (0.6) | 65.22 | 65.22 (0.4) | 64.97 (0.6) | |||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 167.5110343 (0.1) | 167.5931353 (0.2) | 167.511 (0.1) | 167.5931353 | |||||||
| Proper motion (declination) | [mas/yr] | -81.61247574 (0.06) | -81.59627716 (0.2) | -81.612 (0.06) | -81.59627716 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 17.80 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 17.00 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.43 (0.01) | 16.18 (0.1) | ||||||||||
| H magnitude | 16.19 (0.03) | |||||||||||
| K magnitude | 16.15 (0.03) | |||||||||||
| u magnitude | 18.37 (0.02) | 18.37 (0.02) | 18.37 (0.02) | |||||||||
| g magnitude | 17.61 (0.005) | 17.61 (0.005) | ||||||||||
| r magnitude | 17.28 (0.005) | 17.28 (0.005) | ||||||||||
| i magnitude | 17.19 (0.006) | 17.19 (0.006) | ||||||||||
| z magnitude | 17.15 (0.01) | 17.15 (0.01) | ||||||||||
| G magnitude | 17.29 (0.007) | 17.30 | 17.29 | 17.29 (0.003) | 17.30 | |||||||
| BP magnitude | 17.57 (0.007) | 17.55 | 17.55 | |||||||||
| RP magnitude | 16.90 (0.007) | 16.85 | 16.85 | |||||||||
| Pan g magnitude | 17.57 (0.007) | 17.57 (0.008) | ||||||||||
| Pan r magnitude | 17.29 (0.004) | 17.29 (0.004) | ||||||||||
| Pan i magnitude | 17.19 (0.003) | 17.19 (0.003) | ||||||||||
| Pan z magnitude | 17.19 (0.004) | 17.19 (0.004) | ||||||||||
| Pan y magnitude | 17.19 (0.009) | 17.19 (0.007) | ||||||||||
| E(B-V) | 0.003 | |||||||||||
* 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.