All names: SDSS J111203.60+215747.46, SDSS J111203.60+215747.4, Gaia DR3 3991490438782876544, SDSS J111203.60+215747.5, Gaia EDR3 3991490438782876544, Gaia DR2 3991490438782876544
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Gaia DR2 | Stilism | Kepler et al. 2016 | Koester & Kepler 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 12 03.62 (0.3) | 11 12 03.60 | 11 12 03.62 (0.8) | 11 12 03.61 (0.3) | |||||||
| Declination | 21 57 47.34 (0.3) | 21 57 47.42 | 21 57 47.34 (0.5) | 21 57 47.36 (0.3) | |||||||
| Spectral type | DBA | DBA | DB | ||||||||
| Effective temperature | [K] | 13571.0 | 14269.0 (125) | 13704.0 (75) | |||||||
| log(g) | [cgs] | 7.88 | 8.32 (0.09) | 8.00 (0) | |||||||
| Mass | [M☉] | 0.522 | 0.772 (0.06) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | -5.473 | -5.49 (0.8) | |||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | <-8.6 | ||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.57 (0.3) | 3.24 (1) | 3.57 (0.3) | |||||||
| Distance | [pc] | 280.18 (27) | 308.74 (141) | 326.00 | 280.17 (27) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 9.824736539 (0.4) | 8.658 (0.9) | 9.825 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | -1.455855993 (0.3) | -1.469 (1) | -1.456 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.95 (0.02) | 18.96 (0.02) | 18.96 (0.02) | ||||||||
| g magnitude | 19.02 (0.009) | 19.04 (0.02) | 19.04 (0.02) | ||||||||
| r magnitude | 19.28 (0.01) | 19.29 (0.02) | 19.29 (0.02) | ||||||||
| i magnitude | 19.46 (0.02) | 19.47 (0.03) | 19.47 (0.03) | ||||||||
| z magnitude | 19.94 (0.08) | 19.93 (0.07) | 19.93 (0.07) | ||||||||
| G magnitude | 19.14 (0.03) | 19.18 | 19.14 (0.005) | ||||||||
| BP magnitude | 19.04 (0.03) | 18.98 | |||||||||
| RP magnitude | 19.23 (0.06) | 19.15 | |||||||||
| Pan g magnitude | 19.05 (0.009) | ||||||||||
| Pan r magnitude | 19.29 (0.006) | ||||||||||
| Pan i magnitude | 19.52 (0.01) | ||||||||||
| Pan z magnitude | 19.69 (0.02) | ||||||||||
| Pan y magnitude | 19.81 (0.06) | ||||||||||
| E(B-V) | 0.017 | ||||||||||
* 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.