All names: TIC 257292034, LAMOST J002909.02+045623.4, PG 0026+047, SDSS J002909.02+045623.4, PB 5984, HS 0026+0439, GALEX J002909.0+045624, Gaia EDR3 2554910434747250944, 2MASS J00290901+0456234, PG0026+047, UCAC2 33332455, UCAC4 475-000716, Gaia DR3 2554910434747250944, Gaia DR2 2554910434747250944
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 29 09.02 (0.04) | 00 29 09.02 | 00 29 09.02 (0.04) | ||
| Declination | 04 56 23.38 (0.03) | 04 56 23.83 | 04 56 23.44 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 33870.0 (450) | |||
| log(g) | [cgs] | 5.68 (0.07) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.71 (0.05) | 0.82 (0.09) | 0.71 (0.05) | |
| Distance | [pc] | 1401.35 (105) | 1223.54 (134) | 1401.35 (105) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.938 (0.07) | 1.846 (0.2) | 1.938 (0.07) | |
| Proper motion (declination) | [mas/yr] | -3.662 (0.05) | -3.726 (0.1) | -3.662 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.79 (0.03) | ||||
| V magnitude | 14.94 (0.07) | ||||
| R magnitude | 15.05 (0.05) | ||||
| I magnitude | |||||
| J magnitude | 15.59 (0.06) | 15.59 (0.06) | |||
| H magnitude | 15.72 (0.1) | 15.72 (0.1) | |||
| K magnitude | 15.58 (0.2) | 15.58 (0.2) | |||
| u magnitude | 14.44 (0.004) | ||||
| g magnitude | 14.70 (0.003) | ||||
| r magnitude | 15.19 (0.005) | ||||
| i magnitude | 15.57 (0.005) | ||||
| z magnitude | 15.88 (0.007) | ||||
| G magnitude | 14.96 (0.003) | 14.98 (0.0007) | 14.96 (0.003) | ||
| BP magnitude | 14.80 (0.003) | 14.75 (0.005) | |||
| RP magnitude | 15.25 (0.004) | 15.25 (0.002) | |||
| Pan g magnitude | 14.82 (0.009) | ||||
| Pan r magnitude | 15.23 (0.003) | ||||
| Pan i magnitude | 15.60 (0.004) | ||||
| Pan z magnitude | 15.85 (0.004) | ||||
| Pan y magnitude | 16.02 (0.005) | ||||
| E(B-V) | 0.027 | ||||
* 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.