All names: Gaia EDR3 109973634046969472, Gaia DR2 109973634046969472, TIC 61104725, 2MASS J03030749+2317407, ATO J045.7815+23.2945, 03031+2317, PM J03031+2317, Gaia DR3 109973634046969472
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Limoges et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 03 03 07.58 (0.04) | 03 03 07.58 (0.04) | 03 03 07.50 (0.04) | |||
| Declination | 23 17 40.35 (0.03) | 23 17 40.36 (0.04) | 23 17 40.72 (0.03) | |||
| Spectral type | DA+dM | DA+dM | ||||
| Effective temperature | [K] | 23330.0 (6829) | ||||
| log(g) | [cgs] | 8.00 (0.2) | ||||
| Mass | [M☉] | 0.63 (0.1) | ||||
| log(Luminosity) | [L☉] | -1.34 | ||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| log(C/H) | ||||||
| log(N/H) | ||||||
| log(O/H) | ||||||
| log(Na/H) | ||||||
| log(Mg/H) | ||||||
| log(Al/H) | ||||||
| log(Si/H) | ||||||
| log(P/H) | ||||||
| log(S/H) | ||||||
| log(Sc/H) | ||||||
| log(Ti/H) | ||||||
| log(Cr/H) | ||||||
| log(Mn/H) | ||||||
| log(Fe/H) | ||||||
| log(Ni/H) | ||||||
| Parallax | [mas] | 4.35 (0.04) | 4.29 (0.05) | 4.35 (0.04) | ||
| Distance | [pc] | 229.82 (2) | 233.14 (3) | 43.70 (1) | 229.82 (2) | |
| Composition | H | |||||
| Proper motion (right ascension) | [mas/yr] | 68.90945106 (0.05) | 69.19682571 (0.09) | 58.0 | 68.909 (0.04) | |
| Proper motion (declination) | [mas/yr] | -23.39557941 (0.04) | -23.43453543 (0.08) | -12.0 | -23.396 (0.04) | |
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | WDMS | |||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 13.00 | 13.00 (0.02) | ||||
| H magnitude | 12.32 | 12.32 (0.03) | ||||
| K magnitude | 12.07 | 12.07 (0.02) | ||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 15.35 (0.007) | 15.35 | 15.35 (0.003) | |||
| BP magnitude | 15.94 (0.007) | 15.91 | ||||
| RP magnitude | 14.50 (0.005) | 14.51 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.088 | |||||
* 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.