All names: Gaia DR2 868027497707309696, Gaia EDR3 868027497707309696, SDSS J074553.10+252540.4, SDSS J074553.10+252540.48, SDSS J074553.09+252540.5
| Parameter | Unit | Gaia EDR3 | SDSS DR10 | Bedard et al. 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 45 53.09 (0.2) | 07 45 53.10 | 07 45 53.09 (0.3) | 07 45 53.10 | ||||
| Declination | 25 25 40.18 (0.2) | 25 25 40.56 | 25 25 40.19 (0.3) | 25 25 40.58 | ||||
| Spectral type | DA+M | DA+M2 | DA+M2 | |||||
| Effective temperature | [K] | 33785.0 (357) | 36154.0 (414) | |||||
| log(g) | [cgs] | 7.81 (0.07) | 7.86 (0.08) | |||||
| Mass | [M☉] | 0.56 (0.03) | 0.591 (0.03) | |||||
| log(Luminosity) | [L☉] | -0.55 (0.05) | ||||||
| Cooling age | [Gyr] | 0.0060 (0.0003) | ||||||
| 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] | 1.65 (0.3) | 1.65 (0.3) | |||||
| Distance | [pc] | 605.26 (95) | 605.51 (109) | |||||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -1.671684644 (0.3) | -0.881736297 (0.5) | |||||
| Proper motion (declination) | [mas/yr] | -15.86842942 (0.3) | -16.35025624 (0.5) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 18.24 (0.01) | 18.25 (0.02) | 18.22 (0.01) | |||||
| g magnitude | 18.38 (0.007) | 18.44 (0.02) | 18.38 (0.007) | |||||
| r magnitude | 18.52 (0.009) | 18.70 (0.01) | 18.52 (0.009) | |||||
| i magnitude | 18.33 (0.01) | 18.60 (0.02) | 18.34 (0.01) | |||||
| z magnitude | 18.08 (0.03) | 18.28 (0.04) | 18.09 (0.03) | |||||
| G magnitude | 18.65 (0.03) | 18.66 | ||||||
| BP magnitude | 18.48 (0.03) | 18.32 | ||||||
| RP magnitude | 18.03 (0.03) | 17.91 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.034 | |||||||
* 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.