All names: USNO-B1.0 1090-00215382, SDSS J132835.23+190418.6, NLTT 34226, Gaia DR2 3746958021973856768, SDSS J132835.23+190418.7, Gaia EDR3 3746958021973856768, Gaia DR3 3746958021973856768, LP 437-90, SDSS J132835.22+190418.6, GALEX J132835.1+190419, LSPM J1328+1904
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 28 35.10 (0.1) | 13 28 35.23 | 13 28 35.11 (0.2) | 13 28 35.10 | 13 28 35.29 (0.1) | 13 28 35.23 | ||||
| Declination | 19 04 18.95 (0.09) | 19 04 18.66 | 19 04 18.94 (0.1) | 19 04 18.95 | 19 04 18.47 (0.09) | 19 04 18.69 | ||||
| Spectral type | DA | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 6250.0 | 6531.0 (109) | 6517.0 (69) | ||||||
| log(g) | [cgs] | 7.76 | 7.92 (0.04) | 8.37 (0.1) | ||||||
| Mass | [M☉] | 0.455 | 0.543 (0.03) | 0.818 (0.1) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.4530 | ||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(C/H) | ||||||||||
| log(N/H) | ||||||||||
| log(O/H) | ||||||||||
| log(Na/H) | ||||||||||
| log(Mg/H) | ||||||||||
| log(Al/H) | ||||||||||
| log(Si/H) | ||||||||||
| log(P/H) | ||||||||||
| log(S/H) | ||||||||||
| log(Sc/H) | ||||||||||
| log(Ti/H) | ||||||||||
| log(Cr/H) | ||||||||||
| log(Mn/H) | ||||||||||
| log(Fe/H) | ||||||||||
| log(Ni/H) | ||||||||||
| Parallax | [mas] | 9.04 (0.2) | 9.06 (0.2) | 9.04 | 9.04 (0.2) | |||||
| Distance | [pc] | 110.60 (2) | 110.42 (3) | 110.60 | 110.60 (2) | |||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -163.2854134 (0.2) | -163.0300581 (0.4) | -163.285 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 30.37664394 (0.1) | 30.24864311 (0.2) | 30.377 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 20.10 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 18.90 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.70 (0.03) | 19.70 (0.03) | 19.74 (0.05) | |||||||
| g magnitude | 19.04 (0.01) | 19.04 (0.01) | 19.11 (0.02) | |||||||
| r magnitude | 18.75 (0.01) | 18.75 (0.01) | 18.84 (0.03) | |||||||
| i magnitude | 18.67 (0.01) | 18.67 (0.01) | 18.77 (0.03) | |||||||
| z magnitude | 18.67 (0.03) | 18.67 (0.03) | 18.76 (0.04) | |||||||
| G magnitude | 18.81 (0.02) | 18.84 | 18.81 | 18.81 (0.003) | ||||||
| BP magnitude | 19.05 (0.02) | 19.05 | ||||||||
| RP magnitude | 18.40 (0.02) | 18.40 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.006 | |||||||||
* 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.