All names: BPS CS 22890-0074, Gaia DR2 4420741294390728448, LAMOST J152403.03+013421.6, GALEX J152403.0+013421, Balloon 81400001, BPSCS22890-74, BPS BS 16559-0077, Gaia DR3 4420741294390728448, TIC 461346891, UCAC4 458-057141, 2MASS J15240303+0134216
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 24 03.03 | 15 24 03.04 (0.03) | ||
| Declination | 01 34 22.16 | 01 34 21.71 (0.02) | ||
| Spectral type | sdB | sdB+K1V | ||
| 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] | 1.13 (0.04) | 0.98 (0.03) | |
| Distance | [pc] | 885.82 (34) | 1023.23 (33) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.935 (0.08) | 2.813 (0.03) | |
| Proper motion (declination) | [mas/yr] | -7.85 (0.07) | -8.388 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.99 (0.03) | |||
| V magnitude | 13.96 (0.04) | |||
| R magnitude | 14.08 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.50 (0.03) | 13.50 (0.03) | ||
| H magnitude | 13.38 (0.03) | 13.38 (0.03) | ||
| K magnitude | 13.30 (0.04) | 13.30 (0.04) | ||
| u magnitude | 14.10 (0.004) | |||
| g magnitude | 13.86 (0.003) | 13.90 (0.05) | ||
| r magnitude | 13.99 (0.004) | 14.06 (0.02) | ||
| i magnitude | 14.08 (0.005) | 14.11 (0.03) | ||
| z magnitude | 14.19 (0.005) | |||
| G magnitude | 13.89 (0.0009) | 13.87 (0.003) | ||
| BP magnitude | 13.90 (0.007) | |||
| RP magnitude | 13.76 (0.003) | |||
| Pan g magnitude | 13.90 (0.004) | |||
| Pan r magnitude | 13.99 (0.007) | |||
| Pan i magnitude | 14.10 (0.002) | |||
| Pan z magnitude | 14.20 (0.005) | |||
| Pan y magnitude | 14.24 (0.005) | |||
| E(B-V) | 0.043 | |||
* 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.