All names: LAMOST J115435.80+582956.7, WD 1151+587, SBSS 1152+587, GALEX J115435.8+582956, SBSS 1151+587, SDSS J115435.81+582956.4, Gaia EDR3 846265207655248256, USNO-B1.0 1484-00212486, Gaia DR2 846265207655248256, LAMOSTJ115435.89+582956.7, Gaia DR3 846265207655248256, SDSS J115435.81+582956.5
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 54 35.82 (0.06) | 11 54 35.82 | 11 54 35.89 | 11 54 35.82 (0.07) | 11 54 35.82 (0.06) | 11 54 34.97 | ||
| Declination | 58 29 56.43 (0.06) | 58 29 56.47 | 58 29 56.70 | 58 29 56.43 (0.08) | 58 29 56.48 (0.06) | 58 29 54.60 | ||
| Spectral type | sdOB | sdBHe | DBA | |||||
| Effective temperature | [K] | 35510.0 (1980) | ||||||
| log(g) | [cgs] | 5.93 (0.2) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.28 (0.08) | 0.21 (0.1) | 0.21 (0.1) | 0.28 (0.08) | |||
| Distance | [pc] | 3569.52 (967) | 4757.37 (2213) | 4756.78 (2213) | 3570.15 (967) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -2.404443752 (0.07) | -2.209 (0.1) | -2.208855629 (0.1) | -2.404 (0.07) | |||
| Proper motion (declination) | [mas/yr] | -3.228632763 (0.08) | -3.079 (0.2) | -3.078912059 (0.2) | -3.229 (0.08) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 17.60 | |||||||
| V magnitude | 17.80 | |||||||
| R magnitude | 18.30 | |||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 17.08 (0.008) | 17.08 (0.008) | 17.08 (0.008) | |||||
| g magnitude | 17.39 (0.005) | 17.39 (0.005) | 17.41 (0.005) | |||||
| r magnitude | 17.78 (0.006) | 17.78 (0.006) | 17.76 (0.006) | |||||
| i magnitude | 18.02 (0.009) | 18.03 (0.009) | 17.99 (0.009) | |||||
| z magnitude | 18.15 (0.02) | 18.16 (0.02) | 18.15 (0.02) | |||||
| G magnitude | 17.57 (0.006) | 17.60 (0.002) | 17.60 | 17.57 (0.003) | ||||
| BP magnitude | 17.49 (0.006) | 17.43 (0.01) | 17.43 | |||||
| RP magnitude | 17.69 (0.01) | 17.67 (0.02) | 17.67 | |||||
| Pan g magnitude | 17.43 (0.005) | |||||||
| Pan r magnitude | 17.78 (0.004) | |||||||
| Pan i magnitude | 18.03 (0.007) | |||||||
| Pan z magnitude | 18.21 (0.008) | |||||||
| Pan y magnitude | 18.28 (0.01) | |||||||
| E(B-V) | 0.020 | |||||||
* 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.