All names: Gaia EDR3 1390317541196495104, Gaia DR3 1390317541196495104, Gaia DR2 1390317541196495104, SDSS J153642.53+420519.2, SDSS J153642.54+420519.2, SDSS J153642.54+420519.23
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Gaia DR2 | Hollands et al. 2017 | Stilism | Ferrario et al. 2015 | Hollands et al. 2015 | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 36 42.52 (0.4) | 15 36 42.54 | 15 36 42.54 | 15 36 42.52 (0.5) | 15 36 42.53 (0.4) | ||||||||
| Declination | 42 05 19.00 (0.5) | 42 05 19.21 | 42 05 19.21 | 42 05 19.00 (0.6) | 42 05 19.18 (0.5) | ||||||||
| Spectral type | DZ | DZ | DZ | DZH | DZP | DZ | |||||||
| Effective temperature | [K] | 5800.0 (140) | 5500.0 | 5500.0 | 5869.0 (280) | ||||||||
| log(g) | [cgs] | 8.00 (0) | |||||||||||
| Mass | [M☉] | ||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 3.7000 | |||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | -8.7 | -8.56 (0.04) | |||||||||||
| log(Ca/H) | |||||||||||||
| log(N/He) | |||||||||||||
| log(O/He) | |||||||||||||
| log(Na/He) | -8.78 | ||||||||||||
| log(Mg/He) | -7.49 | ||||||||||||
| log(Al/He) | |||||||||||||
| log(Si/He) | |||||||||||||
| log(P/He) | |||||||||||||
| log(S/He) | |||||||||||||
| log(Cl/He) | |||||||||||||
| log(Sc/He) | |||||||||||||
| log(Ti/He) | -8.9 | ||||||||||||
| log(V/He) | |||||||||||||
| log(Cr/He) | -8.9 | ||||||||||||
| log(Mn/He) | |||||||||||||
| log(Fe/He) | -7.59 | ||||||||||||
| log(Co/He) | |||||||||||||
| log(Ni/He) | |||||||||||||
| log(Cu/He) | |||||||||||||
| log(Zn/He) | |||||||||||||
| log(Ga/He) | |||||||||||||
| log(Ge/He) | |||||||||||||
| log(Sr/He) | |||||||||||||
| Parallax | [mas] | 6.06 (0.5) | 6.31 (0.6) | 6.06 (0.5) | |||||||||
| Distance | [pc] | 165.03 (14) | 158.46 (15) | 181.00 (23) | 165.02 (14) | ||||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -11.07670774 (0.6) | -9.666336078 (0.9) | -11.077 (0.6) | |||||||||
| Proper motion (declination) | [mas/yr] | -11.61389624 (0.7) | -11.01757229 (1) | -11.614 (0.7) | |||||||||
| Variability | |||||||||||||
| Magnetic | yes | yes | yes | ||||||||||
| Bd | [MG] | 9.59 (0.04) | 9.59 * (0.04) | 9.59 (0.04) | |||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 23.47 (0.7) | 23.47 (0.7) | 23.32 (0.7) | 23.32 (0.7) | 23.47 (0.7) | 23.47 (0.7) | |||||||
| g magnitude | 20.85 (0.04) | 20.85 (0.04) | 20.84 (0.04) | 20.84 (0.04) | 20.85 (0.04) | 20.85 (0.04) | |||||||
| r magnitude | 20.30 (0.03) | 20.30 (0.03) | 20.30 (0.03) | 20.30 (0.03) | 20.30 (0.03) | 20.30 (0.03) | |||||||
| i magnitude | 20.16 (0.04) | 20.16 (0.04) | 20.17 (0.04) | 20.17 (0.04) | 20.16 (0.04) | 20.16 (0.04) | |||||||
| z magnitude | 20.34 (0.2) | 20.34 (0.2) | 20.33 (0.2) | 20.33 (0.2) | 20.34 (0.2) | 20.34 (0.2) | |||||||
| G magnitude | 20.37 (0.1) | 20.43 | 20.37 (0.007) | ||||||||||
| BP magnitude | 20.71 (0.1) | 20.66 | |||||||||||
| RP magnitude | 19.78 (0.09) | 19.88 | |||||||||||
| Pan g magnitude | 20.70 (0.02) | ||||||||||||
| Pan r magnitude | 20.25 (0.02) | ||||||||||||
| Pan i magnitude | 20.18 (0.02) | ||||||||||||
| Pan z magnitude | 20.22 (0.06) | ||||||||||||
| Pan y magnitude | 19.87 (0.05) | ||||||||||||
| E(B-V) | 0.018 | ||||||||||||
* 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.