All names: SDSS J140051.58-015414.4, Gaia DR3 3657765432570156160, Gaia DR2 3657765432570156160, J1400-0154, Gaia EDR3 3657765432570156160, WD 1358-016, 2QZ J140051.6-015413, SDSS J140051.57-015414.4, GALEX J140051.5-015414, SDSS J140051.58-015414.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 00 51.47 (0.4) | 14 00 51.57 | 14 00 51.59 | 14 00 51.48 (0.5) | 14 00 51.59 (0.4) | 14 00 51.58 | 14 00 51.82 | 14 00 51.58 | ||||
| Declination | -01 54 15.85 (0.3) | -01 54 14.42 | -01 54 14.25 | -01 54 15.80 (0.5) | -01 54 14.26 (0.3) | -01 54 14.43 | -01 54 10.80 | -01 54 14.46 | ||||
| Spectral type | DQ | DQ | DQ | DQ | DQ:M: | hotDQ | ||||||
| Effective temperature | [K] | 9394.0 (237) | 10753.0 (408) | 10836.0 (459) | ||||||||
| log(g) | [cgs] | 8.69 | 8.49 (0.4) | 9.37 (0.5) | ||||||||
| Mass | [M☉] | 1.0245 | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 2.3100 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | -3.5595 (0.1) | |||||||||||
| 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] | 7.03 (0.4) | 6.85 | 6.85 (0.6) | 7.03 (0.4) | |||||||
| Distance | [pc] | 142.31 (9) | 146.01 (14) | 146.01 (14) | 142.31 (9) | |||||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -105.9285011 (0.5) | -106.2159766 (1) | -105.929 (0.5) | -105.4 | |||||||
| Proper motion (declination) | [mas/yr] | -98.89283604 (0.4) | -99.69157066 (0.9) | -98.893 (0.4) | -97.8 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 20.12 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.64 (0.04) | 19.64 (0.04) | 19.63 (0.04) | 19.62 | 19.63 (0.04) | |||||||
| g magnitude | 19.60 (0.01) | 19.60 (0.01) | 19.62 (0.03) | 19.61 | 19.61 (0.03) | |||||||
| r magnitude | 19.62 (0.02) | 19.62 (0.02) | 19.64 (0.02) | 19.63 | 19.63 (0.02) | |||||||
| i magnitude | 19.75 (0.03) | 19.75 (0.03) | 19.77 (0.03) | 19.76 | 19.75 (0.03) | |||||||
| z magnitude | 19.95 (0.1) | 19.95 (0.1) | 19.96 (0.1) | 19.95 | 19.94 (0.1) | |||||||
| G magnitude | 19.56 (0.05) | 19.61 | 19.56 (0.005) | |||||||||
| BP magnitude | 19.65 (0.05) | 19.56 | ||||||||||
| RP magnitude | 19.42 (0.07) | 19.35 | ||||||||||
| Pan g magnitude | 19.66 (0.01) | |||||||||||
| Pan r magnitude | 19.66 (0.02) | |||||||||||
| Pan i magnitude | 19.79 (0.02) | |||||||||||
| Pan z magnitude | 19.90 (0.04) | |||||||||||
| Pan y magnitude | 19.81 (0.04) | |||||||||||
| E(B-V) | 0.013 | |||||||||||
* 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.