All names: USNO-B1.0 1253-00150342, KUV07197+3526, GALEX J072301.9+351954, SDSS J072301.92+351953.8, Gaia DR3 896908300914459264, KUV 07197+3526, Gaia DR2 896908300914459264
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 23 01.91 | 07 23 01.93 (0.08) | ||
| Declination | 35 19 54.09 | 35 19 53.90 (0.08) | ||
| 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] | 0.00 (0.1) | 0.02 (0.09) | |
| Distance | [pc] | 333333.33 (13977778) | 52631.58 (254294) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.101 (0.2) | -0.105 (0.1) | |
| Proper motion (declination) | [mas/yr] | -0.44 (0.2) | -0.522 (0.1) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.80 | |||
| V magnitude | 16.80 | |||
| R magnitude | 17.70 | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 17.91 (0.01) | 17.91 (0.01) | ||
| g magnitude | 17.41 (0.005) | 17.41 (0.005) | ||
| r magnitude | 17.72 (0.006) | 17.72 (0.006) | ||
| i magnitude | 17.92 (0.008) | 17.92 (0.008) | ||
| z magnitude | 18.08 (0.02) | 18.08 (0.02) | ||
| G magnitude | 17.59 (0.002) | 17.56 (0.003) | ||
| BP magnitude | 17.51 (0.01) | |||
| RP magnitude | 17.64 (0.01) | |||
| Pan g magnitude | 17.45 (0.004) | |||
| Pan r magnitude | 17.71 (0.006) | |||
| Pan i magnitude | 17.97 (0.003) | |||
| Pan z magnitude | 18.15 (0.008) | |||
| Pan y magnitude | 18.24 (0.02) | |||
| E(B-V) | 0.035 | |||
* 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.