All names: Gaia DR2 1771893980645039616, UCAC4 527-143156, 2MASS J21314084+1516496, GALEX J213140.8+151649, TIC 96828277, PG 2129+151, WISEA J213140.85+151649.6, PG2129+151, Gaia DR3 1771893980645039616, WISE J213140.85+151649.7, UCAC2 37283703, LAMOST J213140.85+151649.5
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 31 40.82 | 21 31 40.84 (0.03) | ||
| Declination | 15 16 49.63 | 15 16 49.65 (0.03) | ||
| Spectral type | He-sdOB | sdOB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.79 (0.05) | 0.88 (0.03) | |
| Distance | [pc] | 1261.03 (80) | 1134.43 (43) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 14.361 (0.09) | 14.525 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.381 (0.08) | -6.197 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.02 (0.03) | |||
| V magnitude | 14.19 (0) | |||
| R magnitude | 14.51 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.70 (0.03) | 14.70 (0.03) | ||
| H magnitude | 14.93 (0.06) | 14.93 (0.06) | ||
| K magnitude | 14.74 (0.1) | 14.74 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.04 (0.02) | |||
| r magnitude | 14.43 (0.01) | |||
| i magnitude | 14.71 (0.02) | |||
| z magnitude | ||||
| G magnitude | 14.16 (0.0008) | 14.15 (0.003) | ||
| BP magnitude | 13.97 (0.01) | |||
| RP magnitude | 14.37 (0.002) | |||
| Pan g magnitude | 14.05 (0.004) | |||
| Pan r magnitude | 14.39 (0.002) | |||
| Pan i magnitude | 14.70 (0.004) | |||
| Pan z magnitude | 14.95 (0.005) | |||
| Pan y magnitude | 15.12 (0.005) | |||
| E(B-V) | 0.070 | |||
* 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.