All names: TD1 31173, Gaia EDR3 2312392250224668288, Gaia DR3 2312392250224668288, CD-35 15910, HIC 117100, RAVE J234422.0-342700, HIP 117100, Gaia DR2 2312392250224668288, TIC 169285097, PPM 304125, SB 815, GCRV 20403, uvby98 -003515910, GSC 07518-00873, UCAC4 278-232387, CPD-35 9438, MCT2341-3443, GALEX J234422.0-342700, MCT 2341-3443, TYC 7518-873-1, 2MASS J23442200-3427003, HE 2341-3443, WISE J234421.97-342700.3
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 44 21.98 (0.05) | 23 44 22.00 | 23 44 22.01 (0.05) | ||
| Declination | -34 27 00.49 (0.04) | -34 27 00.39 | -34 27 00.39 (0.04) | ||
| Spectral type | sdB | sdBHe1 | |||
| Effective temperature | [K] | 28390.0 (410) | |||
| log(g) | [cgs] | 5.39 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 4.14 (0.06) | 4.07 (0.09) | 4.14 (0.06) | |
| Distance | [pc] | 241.50 (4) | 245.54 (5) | 241.50 (4) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -21.088 (0.05) | -20.972 (0.2) | -21.088 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.12 (0.04) | -6.074 (0.1) | -6.12 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 10.71 (0.04) | ||||
| V magnitude | 11.00 (0.07) | ||||
| R magnitude | 11.26 (0.02) | ||||
| I magnitude | |||||
| J magnitude | 11.58 (0.03) | 11.58 (0.03) | |||
| H magnitude | 11.68 (0.02) | 11.68 (0.02) | |||
| K magnitude | 11.77 (0.02) | 11.77 (0.02) | |||
| u magnitude | |||||
| g magnitude | 10.69 (0.01) | ||||
| r magnitude | 11.13 (0.01) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 10.91 (0.003) | 10.92 (0.001) | 10.91 (0.003) | ||
| BP magnitude | 10.77 (0.003) | 10.74 (0.009) | |||
| RP magnitude | 11.20 (0.004) | 11.20 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.006 | ||||
* 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.