All names: SDSSJ212929.09+103910.8, Gaia EDR3 1742684079865409408, TIC 305098678, Gaia DR3 1742687073456928512, Gaia DR2 1742687073456928512, GALEX J212929.0+103909, SDSS J212929.09+103910.8, 2MASS J21292909+1039108
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 29 30.67 (0.6) | 21 29 29.10 | 21 29 29.10 (0.03) | ||
| Declination | 10 37 56.24 (0.7) | 10 39 10.83 | 10 39 10.81 (0.03) | ||
| Spectral type | sd | sdB | |||
| 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] | 1.36 (0.7) | 0.50 (0.06) | 0.48 (0.03) | |
| Distance | [pc] | 734.92 (392) | 2018.98 (229) | 2096.88 (134) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.62 (0.7) | -9.222 (0.07) | -9.126 (0.03) | |
| Proper motion (declination) | [mas/yr] | -9.089 (0.7) | -17.394 (0.07) | -17.431 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.72 (0.03) | 14.72 (0.03) | |||
| H magnitude | 14.57 (0.07) | 14.57 (0.07) | |||
| K magnitude | 14.40 (0.08) | 14.40 (0.08) | |||
| u magnitude | 15.26 (0.004) | 15.25 (0.005) | |||
| g magnitude | 15.14 (0.004) | 15.13 (0.004) | |||
| r magnitude | 15.21 (0.005) | 15.20 (0.005) | |||
| i magnitude | 15.26 (0.005) | 15.25 (0.005) | |||
| z magnitude | 15.34 (0.006) | 15.34 (0.006) | |||
| G magnitude | 20.29 (0.006) | 15.14 (0.0008) | 15.12 (0.003) | ||
| BP magnitude | 20.78 (0.09) | 15.20 (0.006) | |||
| RP magnitude | 19.81 (0.1) | 14.96 (0.004) | |||
| Pan g magnitude | 15.19 (0.002) | ||||
| Pan r magnitude | 15.24 (0.001) | ||||
| Pan i magnitude | 15.29 (0.001) | ||||
| Pan z magnitude | 15.37 (0.003) | ||||
| Pan y magnitude | 15.40 (0.004) | ||||
| E(B-V) | 0.044 | ||||
* 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.