All names: UVQS J230740.15-342753.4, BPS CS 22888-0018, 1SWASP J230740.13-342753.4, 6dFGS gJ230740.2-342753, WD 2304-347, CTS 117, Gaia DR3 6554606769325638272, 2MASX J23074015-3427537, [VV98c] J230740.0-342753, Gaia EDR3 6554606769325638272, Gaia DR2 6554606769325638272, CTS A12.17, LEDA 3190792, 2dFGRS TGS538Z120
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 23 07 40.16 (0.03) | 23 07 40.16 (0.04) | 23 07 40.16 (0.03) | 23 07 39.48 | ||
| Declination | -34 27 53.43 (0.03) | -34 27 53.43 (0.04) | -34 27 53.43 (0.03) | -34 27 45.00 | ||
| Spectral type | DC | |||||
| 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] | 0.05 (0.04) | 0.11 (0.05) | 0.05 (0.04) | ||
| Distance | [pc] | 21480.71 (17127) | 9099.18 (4396) | 21459.23 (17084) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 0.034753829 (0.04) | 0.052 (0.09) | 0.035 (0.04) | ||
| Proper motion (declination) | [mas/yr] | 0.029934061 (0.03) | 0.079 (0.09) | 0.03 (0.04) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 16.89 | |||||
| V magnitude | 14.86 | |||||
| R magnitude | 15.67 | |||||
| I magnitude | ||||||
| J magnitude | 13.58 (0.09) | |||||
| H magnitude | 12.69 (0.1) | |||||
| K magnitude | 11.97 (0.08) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 15.66 (0.02) | 15.51 | 15.66 (0.007) | |||
| BP magnitude | 15.72 (0.02) | 15.57 | ||||
| RP magnitude | 15.05 (0.01) | 15.01 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.010 | |||||
* 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.