All names: WDJ081442.56+330020.90, Gaia EDR3 902414964384353408, LSPM J0814+3300, USNO-B1.0 1230-00209689, Gaia DR3 902414964384353408, SDSS J081442.59+330021.1, SDSS J081442.58+330021.1, Gaia DR2 902414964384353408, J0814+3300
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Bergeron et al. 2022 | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 14 42.72 (0.3) | 08 14 42.72 | 08 14 42.56 (0.3) | 08 14 42.72 | ||||||
| Declination | 33 00 22.45 (0.2) | 33 00 22.40 | 33 00 20.90 (0.2) | 33 00 22.40 | ||||||
| Spectral type | DC-IRfaint | DC | DC | DC | ||||||
| Effective temperature | [K] | 4690.0 (50) | 4601.0 (58) | 4690.0 (50) | ||||||
| log(g) | [cgs] | 8.34 (0.04) | 8.30 (0.05) | |||||||
| Mass | [M☉] | 0.788 (0.02) | 0.762 (0.03) | 0.788 (0.02) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 8.1900 | 7.5740 | |||||||
| log(H/He) | -2.54 | -2.42 | -2.54 | |||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | ||||||||||
| log(Mg/He) | ||||||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | ||||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | ||||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | ||||||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | ||||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 13.85 (0.4) | 13.91 (0.5) | 13.91 (0.5) | 13.85 (0.4) | 13.91 (0.5) | ||||
| Distance | [pc] | 72.19 (2) | 71.89 (2) | 71.88 (2) | 72.19 (2) | 71.88 (2) | ||||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 124.737477 (0.3) | 125.9033003 (0.8) | 124.737 (0.3) | 125.9033003 | |||||
| Proper motion (declination) | [mas/yr] | 96.97022733 (0.3) | 96.61332407 (0.6) | 96.97 (0.3) | 96.61332407 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 20.00 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 19.70 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 21.27 (0.1) | 21.31 (0.08) | 21.28 (0.1) | |||||||
| g magnitude | 20.03 (0.02) | 20.01 (0.02) | ||||||||
| r magnitude | 19.39 (0.01) | 19.38 (0.02) | ||||||||
| i magnitude | 19.34 (0.02) | 19.37 (0.02) | ||||||||
| z magnitude | 19.71 (0.07) | 19.64 (0.08) | ||||||||
| G magnitude | 19.53 (0.06) | 19.58 | 19.53 (0.005) | 19.58 | ||||||
| BP magnitude | 19.83 (0.06) | 19.78 | 19.78 | |||||||
| RP magnitude | 19.26 (0.05) | 19.20 | 19.20 | |||||||
| Pan g magnitude | 19.96 (0.02) | 19.96 (0.01) | ||||||||
| Pan r magnitude | 19.41 (0.006) | 19.41 (0.007) | ||||||||
| Pan i magnitude | 19.38 (0.01) | 19.38 (0.01) | ||||||||
| Pan z magnitude | 19.67 (0.02) | 19.67 (0.03) | ||||||||
| Pan y magnitude | 19.76 (0.09) | 19.76 (0.09) | ||||||||
| 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.