All names: Gaia EDR3 1185098132573773184, SDSS J145213.98+134633.4, Gaia DR3 1185098132573773184, SDSS J145213.97+134633.3, SDSS J145213.98+134633.50, GALEX J145214.0+134633, Gaia DR2 1185098132573773184, SDSS J145213.98+134633.5, J1452+1346
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | Coutu et al. 2019 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 52 13.97 (0.2) | 14 52 13.98 | 14 52 13.98 | 14 52 13.97 (0.4) | 14 52 13.98 (0.2) | 14 52 13.98 | ||||||
| Declination | 13 46 33.25 (0.3) | 13 46 33.43 | 13 46 33.46 | 13 46 33.26 (0.4) | 13 46 33.47 (0.3) | 13 46 33.46 | ||||||
| Spectral type | DBZ | DBZH | DBZH: | DB | ||||||||
| Effective temperature | [K] | 14770.0 | 12551.0 | 12206.0 (546) | 12714.0 (327) | |||||||
| log(g) | [cgs] | 8.99 | 8.23 | 8.19 | 8.60 (0.2) | |||||||
| Mass | [M☉] | 1.185 | 0.728 | 0.7032 | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.4940 | ||||||||||
| log(H/He) | -5.653 | <-6.0749 | ||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | -9.0377 (0.2) | |||||||||||
| 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] | 3.62 (0.3) | 3.90 | 3.90 (0.5) | 3.62 (0.3) | |||||||
| Distance | [pc] | 276.51 (22) | 256.44 (30) | 256.44 (30) | 276.50 (22) | |||||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.7608704 (0.3) | -16.77853456 (0.8) | -16.761 (0.3) | ||||||||
| Proper motion (declination) | [mas/yr] | -13.9384559 (0.3) | -13.3783719 (0.9) | -13.938 (0.3) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.08 (0.02) | 19.08 (0.02) | 19.07 (0.02) | |||||||||
| g magnitude | 19.06 (0.009) | 19.06 (0.009) | 19.06 (0.01) | |||||||||
| r magnitude | 19.23 (0.01) | 19.23 (0.01) | 19.24 (0.02) | |||||||||
| i magnitude | 19.45 (0.02) | 19.45 (0.02) | 19.45 (0.02) | |||||||||
| z magnitude | 19.64 (0.08) | 19.64 (0.08) | 19.66 (0.07) | |||||||||
| G magnitude | 19.13 (0.03) | 19.17 | 19.13 (0.004) | |||||||||
| BP magnitude | 19.17 (0.03) | 19.17 | ||||||||||
| RP magnitude | 19.23 (0.06) | 19.24 | ||||||||||
| Pan g magnitude | 19.06 (0.009) | |||||||||||
| Pan r magnitude | 19.24 (0.01) | |||||||||||
| Pan i magnitude | 19.47 (0.02) | |||||||||||
| Pan z magnitude | 19.63 (0.03) | |||||||||||
| Pan y magnitude | 19.68 (0.1) | |||||||||||
| E(B-V) | 0.026 | |||||||||||
* 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.