All names: Gaia DR3 671999108644503040, WISEA J074511.55+194926.4, WISE J074511.55+194926.5, Gaia DR2 671999108644503040, J0745+1949, USNO-B1.0 1098-00151194, UCAC4 550-042451, 2MASS J07451158+1949266, TIC 62823020, EQ J0745+1949, Gaia EDR3 671999108644503040, SDSS J074511.56+194926.5, GALEX J074511.5+194925
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2014 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 07 45 11.56 (0.05) | 07 45 11.56 (0.06) | 07 45 11.57 (0.05) | ||||
| Declination | 19 49 26.56 (0.04) | 19 49 26.56 (0.05) | 19 49 26.60 (0.04) | ||||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 8380.0 (130) | |||||
| log(g) | [cgs] | 6.21 (0.07) | |||||
| Mass | [M☉] | 0.164 | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | 4.2320 (0.6) | |||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | -5.8 | ||||||
| log(C/H) | |||||||
| log(N/H) | |||||||
| log(O/H) | |||||||
| log(Na/H) | |||||||
| log(Mg/H) | -3.9 | ||||||
| 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] | 1.09 (0.06) | 1.14 (0.08) | 1.09 (0.06) | |||
| Distance | [pc] | 919.02 (50) | 875.55 (62) | 223.00 (40) | 919.03 (50) | ||
| Composition | H | ||||||
| Proper motion (right ascension) | [mas/yr] | -10.4200086 (0.06) | -10.38884362 (0.1) | -10.42 (0.06) | |||
| Proper motion (declination) | [mas/yr] | -2.581487698 (0.04) | -2.514628918 (0.09) | -2.581 (0.04) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | WDMS | ||||||
| B magnitude | 16.50 | ||||||
| V magnitude | |||||||
| R magnitude | 15.55 | ||||||
| I magnitude | |||||||
| J magnitude | 15.91 (0.06) | ||||||
| H magnitude | 16.16 (0.2) | ||||||
| K magnitude | 15.65 (0.2) | ||||||
| u magnitude | 17.42 (0.009) | ||||||
| g magnitude | 16.48 (0.003) | ||||||
| r magnitude | 16.45 (0.004) | ||||||
| i magnitude | 16.48 (0.005) | ||||||
| z magnitude | 16.55 (0.009) | ||||||
| G magnitude | 16.41 (0.006) | 16.42 | 16.41 (0.003) | ||||
| BP magnitude | 16.55 (0.006) | 16.54 | |||||
| RP magnitude | 16.17 (0.004) | 16.17 | |||||
| Pan g magnitude | 16.50 (0.004) | ||||||
| Pan r magnitude | 16.44 (0.002) | ||||||
| Pan i magnitude | 16.51 (0.004) | ||||||
| Pan z magnitude | 16.58 (0.007) | ||||||
| Pan y magnitude | 16.62 (0.005) | ||||||
| E(B-V) | 0.044 | ||||||
* 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.