All names: SDSS J014619.95-082616.8, LP 708-404, Gaia DR3 2465343629137442816, Gaia EDR3 2465343629137442816, SDSS J014619.96-082616.9, J0145-0822, PHL 3735, WD 0143-086.1, SDSS J014619.96-082616.8, GALEX J014619.9-082616, NLTT 5902, WDJ014619.95-082616.72, Gaia DR2 2465343629137442816, J0146-0826, WIRED J014619.95-082616.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Coutu et al. 2019 | Gaia DR2 | Stilism | Dufour et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 46 20.12 (0.08) | 01 46 19.96 | 01 45 54.05 | 01 46 20.11 (0.1) | 01 46 20.12 | 01 46 19.95 (0.08) | 01 46 20.11 | 01 46 19.96 | 01 46 19.30 | 01 46 19.96 | |||||||
| Declination | -08 26 18.62 (0.06) | -08 26 16.83 | -08 22 21.64 | -08 26 18.56 (0.09) | -08 26 18.62 | -08 26 16.72 (0.06) | -08 26 18.56 | -08 26 16.84 | -08 26 13.20 | -08 26 16.88 | |||||||
| Spectral type | DQ | DQ | DQ | DQ | DC | DQ | DC | DQ | DQ | DQ | DC | ||||||
| Effective temperature | [K] | 7194.0 (54) | 7347.0 (42) | 8002.0 (236) | 7240.0 (150) | 7415.0 (95) | 10082.0 (10) | 10082.0 (10) | |||||||||
| log(g) | [cgs] | 7.94 (0.01) | 7.99 (0.01) | 8.97 | 8.00 (0) | 8.01 (0.02) | 8.66 (0.3) | 9.40 (0.5) | |||||||||
| Mass | [M☉] | 0.54 (0.01) | 0.57 (0.01) | 1.1716 | 0.583 (0.02) | ||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 1.4300 | 3.1200 | ||||||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | -6.48 | -6.43 | -5.8454 (0.1) | -6.13 (0.3) | |||||||||||||
| 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] | 13.93 (0.1) | 13.97 (0.1) | 13.97 | 13.97 (0.1) | 13.93 | 13.93 (0.1) | 13.97 (0.1) | |||||||||
| Distance | [pc] | 71.80 (0.5) | 71.58 (0.8) | 71.56 (0.8) | 71.56 (0.8) | 70.00 | 71.80 | 71.80 (0.5) | 71.56 (0.8) | ||||||||
| Composition | He | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 154.9749474 (0.1) | 155.2550301 (0.3) | 154.975 (0.1) | 155.255 | 149.7 | |||||||||||
| Proper motion (declination) | [mas/yr] | -118.6882511 (0.07) | -118.4891412 (0.2) | -118.688 (0.07) | -118.489 | -123.0 | |||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 18.10 | ||||||||||||||||
| V magnitude | 17.20 | ||||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 17.20 (0.01) | ||||||||||||||||
| H magnitude | |||||||||||||||||
| K magnitude | 17.11 (0.06) | ||||||||||||||||
| u magnitude | 18.07 (0.01) | 18.07 (0.01) | 18.07 (0.01) | 18.07 (0.01) | 18.06 (0.02) | 18.06 | 18.07 (0.02) | ||||||||||
| g magnitude | 17.68 (0.005) | 17.68 (0.005) | 17.68 (0.005) | 17.77 (0.04) | 17.77 | 17.77 (0.04) | |||||||||||
| r magnitude | 17.61 (0.006) | 17.61 (0.006) | 17.61 (0.006) | 17.65 (0.03) | 17.64 | 17.65 (0.02) | |||||||||||
| i magnitude | 17.62 (0.007) | 17.62 (0.007) | 17.62 (0.007) | 17.64 (0.03) | 17.64 | 17.63 (0.03) | |||||||||||
| z magnitude | 17.69 (0.02) | 17.69 (0.02) | 17.69 (0.02) | 17.72 (0.03) | 17.71 | 17.70 (0.03) | |||||||||||
| G magnitude | 17.57 (0.0009) | 17.59 | 17.57 | 17.57 (0.003) | 17.59 | ||||||||||||
| BP magnitude | 17.71 (0.006) | 17.69 | 17.69 | ||||||||||||||
| RP magnitude | 17.35 (0.01) | 17.33 | 17.33 | ||||||||||||||
| Pan g magnitude | 17.69 (0.006) | 17.69 (0.007) | |||||||||||||||
| Pan r magnitude | 17.63 (0.007) | 17.63 (0.006) | |||||||||||||||
| Pan i magnitude | 17.67 (0.004) | 17.67 (0.004) | |||||||||||||||
| Pan z magnitude | 17.74 (0.005) | 17.74 (0.005) | |||||||||||||||
| Pan y magnitude | 17.81 (0.03) | 17.81 (0.02) | |||||||||||||||
| 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.