All names: Gaia DR3 2693917150066120704, GALEX J215357.0+022826, 2MASS J21535702+0228255, HS2151+0214, UCAC4 463-131091, Gaia EDR3 2693917150066120704, Gaia DR2 2693917150066120704, TIC 319467915, HS 2151+0214
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 53 56.99 (0.08) | 21 53 57.04 | 21 53 57.01 (0.08) | ||
| Declination | 02 28 25.06 (0.07) | 02 28 25.52 | 02 28 25.22 (0.07) | ||
| Spectral type | sdB | 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] | 0.62 (0.1) | 0.35 (0.2) | 0.62 (0.1) | |
| Distance | [pc] | 1612.64 (267) | 2832.06 (1302) | 1612.64 (267) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -17.019 (0.09) | -17.032 (0.2) | -17.019 (0.09) | |
| Proper motion (declination) | [mas/yr] | -10.245 (0.08) | -10.394 (0.2) | -10.245 (0.08) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.13 (0.06) | ||||
| V magnitude | 16.30 (0.01) | ||||
| R magnitude | 16.41 | ||||
| I magnitude | |||||
| J magnitude | 16.68 (0.2) | 16.68 (0.1) | |||
| H magnitude | 17.50 | ||||
| K magnitude | 16.44 | ||||
| u magnitude | 15.86 (0.006) | ||||
| g magnitude | 16.07 (0.004) | ||||
| r magnitude | 16.52 (0.005) | ||||
| i magnitude | 16.84 (0.006) | ||||
| z magnitude | 17.13 (0.01) | ||||
| G magnitude | 16.31 (0.003) | 16.34 (0.002) | 16.31 (0.003) | ||
| BP magnitude | 16.19 (0.005) | 16.16 (0.009) | |||
| RP magnitude | 16.55 (0.009) | 16.55 (0.01) | |||
| Pan g magnitude | 16.15 (0.002) | ||||
| Pan r magnitude | 16.54 (0.003) | ||||
| Pan i magnitude | 16.87 (0.002) | ||||
| Pan z magnitude | 17.13 (0.006) | ||||
| Pan y magnitude | 17.32 (0.02) | ||||
| E(B-V) | 0.081 | ||||
* 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.