All names: USNO-B1.0 1042-00199551, SDSS J112100.11+141728.9, J1121+1417, LSPM J1121+1417, Gaia DR3 3966679722679277824, Gaia EDR3 3966679722679277824, WDJ11210.09+141729.78, WDJ112100.09+141729.79, Gaia DR2 3966679722679277824
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Bergeron et al. 2022 | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 21 00.20 (0.4) | 11 21 00.19 | 11 21 00.09 (0.4) | 11 21 00.19 | |||||
| Declination | 14 17 24.96 (0.3) | 14 17 25.12 | 14 17 29.79 (0.3) | 14 17 25.12 | |||||
| Spectral type | IRfaint | ||||||||
| Effective temperature | [K] | 4808.0 (52) | 4808.0 (52) | ||||||
| log(g) | [cgs] | 8.50 (0.03) | |||||||
| Mass | [M☉] | 0.9 (0.02) | 0.9 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 7.3050 | |||||||
| log(H/He) | -2.95 | -2.95 | |||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 15.59 (0.3) | 15.38 (0.5) | 15.59 (0.3) | 15.38 (0.5) | ||||
| Distance | [pc] | 64.13 (1) | 65.02 (2) | 64.13 (1) | 65.02 (2) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 99.15722789 (0.6) | 101.1688692 (1) | 99.157 (0.6) | 101.1688692 | ||||
| Proper motion (declination) | [mas/yr] | -301.5742983 (0.3) | -301.4445213 (0.9) | -301.574 (0.3) | -301.4445213 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 20.50 | ||||||||
| V magnitude | |||||||||
| R magnitude | 19.30 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 21.00 (0.06) | ||||||||
| g magnitude | 19.71 (0.01) | ||||||||
| r magnitude | 19.19 (0.01) | ||||||||
| i magnitude | 19.49 (0.02) | ||||||||
| z magnitude | 20.13 (0.1) | ||||||||
| G magnitude | 19.37 (0.04) | 19.43 | 19.37 (0.005) | 19.43 | |||||
| BP magnitude | 19.63 (0.04) | 19.51 | 19.51 | ||||||
| RP magnitude | 19.20 (0.07) | 19.23 | 19.23 | ||||||
| Pan g magnitude | 19.62 (0.01) | ||||||||
| Pan r magnitude | 19.18 (0.007) | ||||||||
| Pan i magnitude | 19.51 (0.007) | ||||||||
| Pan z magnitude | 20.13 (0.04) | ||||||||
| Pan y magnitude | 20.26 (0.2) | ||||||||
| E(B-V) | 0.002 | ||||||||
* 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.