All names: Gaia DR3 2878501895123521920, Gaia DR2 2878501890826543616, SDSS J235429.03+353338.8, GALEX J235429.0+353339, SDSSJ235429.03+353338.8, LAMOST J235429.03+353338.8, Gaia EDR3 2878501895123521920
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 54 29.04 (0.06) | 23 54 29.04 | 23 54 29.04 (0.06) | ||
| Declination | 35 33 38.87 (0.05) | 35 33 38.89 | 35 33 38.92 (0.05) | ||
| Spectral type | sdB | sdOB | |||
| Effective temperature | [K] | 32860.0 (940) | |||
| log(g) | [cgs] | 5.43 (0.09) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.29 (0.08) | 0.25 (0.1) | 0.29 (0.08) | |
| Distance | [pc] | 3439.97 (989) | 4001.60 (1795) | 3439.97 (989) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.453 (0.09) | -0.461 (0.1) | -0.453 (0.09) | |
| Proper motion (declination) | [mas/yr] | -2.942 (0.06) | -2.917 (0.1) | -2.942 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.93 (0.008) | 16.93 (0.01) | |||
| g magnitude | 17.16 (0.005) | 17.18 (0.01) | |||
| r magnitude | 17.62 (0.006) | 17.63 (0.01) | |||
| i magnitude | 17.94 (0.008) | 17.95 (0.02) | |||
| z magnitude | 18.25 (0.03) | 18.23 (0.03) | |||
| G magnitude | 17.41 (0.003) | 17.43 (0.002) | 17.41 (0.003) | ||
| BP magnitude | 17.28 (0.007) | 17.23 (0.008) | |||
| RP magnitude | 17.65 (0.01) | 17.66 (0.01) | |||
| Pan g magnitude | 17.22 (0.007) | ||||
| Pan r magnitude | 17.63 (0.004) | ||||
| Pan i magnitude | 17.97 (0.007) | ||||
| Pan z magnitude | 18.22 (0.005) | ||||
| Pan y magnitude | 18.38 (0.02) | ||||
| E(B-V) | 0.066 | ||||
* 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.