All names: TIC 311132202, Gaia EDR3 1241489468326857472, WIRED J144801.37+215342.7, Gaia DR3 1241489468326857472, SDSS J144801.44+215342.7, 2MASS J14480132+2153432, SDSS J144801.38+215342.8, SDSS J144801.37+215342.7, Gaia DR2 1241489468326857472, WD 1445+221, [HHD2009] SDSS J1448+2153
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 48 01.38 (0.08) | 14 48 01.38 | 14 48 01.38 (0.1) | 14 48 01.37 | 14 48 01.38 | 14 48 01.37 (0.08) | 14 48 00.82 | 14 48 01.38 | ||||
| Declination | 21 53 42.55 (0.1) | 21 53 42.73 | 21 53 42.55 (0.2) | 21 53 42.68 | 21 53 42.55 | 21 53 42.72 (0.1) | 21 53 38.04 | 21 53 42.77 | ||||
| Spectral type | DA+M | DA | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 23343.0 (697) | 20298.0 (294) | |||||||||
| log(g) | [cgs] | 7.61 (0.1) | 7.09 (0.07) | |||||||||
| Mass | [M☉] | 0.44 (0.04) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 1.63 (0.2) | 1.44 (0.2) | 1.63 | 1.63 (0.2) | |||||||
| Distance | [pc] | 611.81 (57) | 695.77 (98) | 441.00 (35) | 611.81 | 611.81 (57) | ||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.36941478 (0.1) | 7.255003139 (0.4) | 7.369 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | -10.72932922 (0.2) | -10.96658123 (0.4) | -10.729 (0.2) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.73 (0.1) | |||||||||||
| H magnitude | 16.67 (0.1) | |||||||||||
| K magnitude | 15.99 (0.2) | |||||||||||
| u magnitude | 18.26 (0.02) | 18.30 | 18.26 (0.01) | 18.30 | 18.30 (0.02) | |||||||
| g magnitude | 18.32 (0.007) | 18.34 | 18.32 (0.007) | 18.34 | 18.34 (0.02) | |||||||
| r magnitude | 18.64 (0.009) | 18.65 | 18.64 (0.009) | 18.65 | 18.64 (0.02) | |||||||
| i magnitude | 18.47 (0.01) | 18.46 | 18.47 (0.01) | 18.46 | 18.47 (0.02) | |||||||
| z magnitude | 18.30 (0.02) | 18.30 | 18.30 (0.03) | 18.30 | 18.31 (0.03) | |||||||
| G magnitude | 18.38 (0.01) | 18.41 | 18.38 | 18.38 (0.003) | ||||||||
| BP magnitude | 18.47 (0.01) | 18.48 | ||||||||||
| RP magnitude | 18.15 (0.02) | 18.14 | ||||||||||
| Pan g magnitude | 18.40 (0.008) | |||||||||||
| Pan r magnitude | 18.62 (0.01) | |||||||||||
| Pan i magnitude | 18.50 (0.007) | |||||||||||
| Pan z magnitude | 18.32 (0.01) | |||||||||||
| Pan y magnitude | 18.17 (0.02) | |||||||||||
| E(B-V) | 0.031 | |||||||||||
* 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.