All names: SDSS J142119.93+570329.9, Gaia EDR3 1611374216521821952, J1421+5703, TIC 1001309484, SDSS J142119.92+570330.0, Gaia DR3 1611374216521821952, Gaia DR2 1611374216521821952
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 21 19.92 (0.4) | 14 21 19.92 | 14 21 19.94 | 14 21 19.92 (0.5) | 14 21 19.94 (0.4) | 14 21 19.93 | ||||
| Declination | 57 03 29.78 (0.4) | 57 03 30.02 | 57 03 30.02 | 57 03 29.79 (0.5) | 57 03 30.05 (0.4) | 57 03 29.92 | ||||
| Spectral type | DZ | DZ | DZ | DZ | ||||||
| Effective temperature | [K] | 6980.0 (255) | 10106.0 (41) | |||||||
| log(g) | [cgs] | 8.14 | 8.96 (0.7) | |||||||
| Mass | [M☉] | 0.6588 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 2.0200 | ||||||||
| log(H/He) | <-3.78 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | -9.9408 (0.1) | |||||||||
| 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] | 4.99 (0.4) | 4.63 | 4.63 (0.5) | 4.99 (0.4) | |||||
| Distance | [pc] | 200.58 (17) | 215.77 (25) | 215.77 (25) | 200.58 (17) | |||||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -9.778336099 (0.4) | -9.296427329 (1) | -9.778 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -17.15114849 (0.5) | -14.87348487 (1) | -17.151 (0.5) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.95 (0.08) | 20.95 (0.08) | 20.93 (0.09) | |||||||
| g magnitude | 20.44 (0.02) | 20.44 (0.02) | 20.45 (0.03) | |||||||
| r magnitude | 20.29 (0.03) | 20.29 (0.03) | 20.27 (0.03) | |||||||
| i magnitude | 20.34 (0.04) | 20.34 (0.04) | 20.33 (0.04) | |||||||
| z magnitude | 20.53 (0.1) | 20.53 (0.1) | 20.55 (0.1) | |||||||
| G magnitude | 20.28 (0.07) | 20.37 | 20.28 (0.006) | |||||||
| BP magnitude | 20.57 (0.07) | 20.61 | ||||||||
| RP magnitude | 19.79 (0.08) | 19.71 | ||||||||
| Pan g magnitude | 20.37 (0.04) | |||||||||
| Pan r magnitude | 20.25 (0.03) | |||||||||
| Pan i magnitude | 20.33 (0.06) | |||||||||
| Pan z magnitude | 20.51 (0.03) | |||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.016 | |||||||||
* 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.