All names: LAMOST J144655.54+132810.2, Gaia DR3 1184843213379717248, Gaia EDR3 1184843213379717248, SDSS J144655.55+132810.2, SDSS J144655.54+132810.2, WIRED J144655.54+132810.2, GALEX J144655.5+132809, 2MASS J14465554+1328102, TIC 445078602, Gaia DR2 1184843213379717248
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 46 55.54 (0.2) | 14 46 55.55 | 14 46 55.54 (0.3) | 14 46 55.55 | 14 46 55.55 (0.2) | 14 46 55.55 | |||
| Declination | 13 28 09.92 (0.2) | 13 28 10.19 | 13 28 09.93 (0.3) | 13 28 10.24 | 13 28 10.26 (0.2) | 13 28 10.24 | |||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 22550.0 (1352) | 6303.0 (8) | ||||||
| log(g) | [cgs] | 7.71 (0.2) | 6.57 (0.3) | ||||||
| Mass | [M☉] | 0.48 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.67 (0.3) | 2.16 (0.4) | 1.67 (0.3) | |||||
| Distance | [pc] | 597.90 (99) | 464.00 (82) | 749.00 (100) | 597.91 (99) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.234653289 (0.3) | -7.342520707 (0.6) | -7.235 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | -20.88978749 (0.3) | -20.32951045 (0.5) | -20.89 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | WDMS | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.81 (0.2) | ||||||||
| H magnitude | 15.98 (0.2) | ||||||||
| K magnitude | 15.73 (0.2) | ||||||||
| u magnitude | 19.43 (0.03) | 19.42 | 19.43 (0.03) | 19.42 (0.03) | |||||
| g magnitude | 19.27 (0.01) | 19.30 | 19.27 (0.01) | 19.29 (0.02) | |||||
| r magnitude | 19.32 (0.01) | 19.33 | 19.32 (0.01) | 19.33 (0.02) | |||||
| i magnitude | 18.55 (0.01) | 18.55 | 18.55 (0.01) | 18.55 (0.02) | |||||
| z magnitude | 17.84 (0.02) | 17.87 | 17.84 (0.02) | 17.87 (0.02) | |||||
| G magnitude | 18.91 (0.04) | 18.91 | 18.91 (0.004) | ||||||
| BP magnitude | 19.32 (0.04) | 19.39 | |||||||
| RP magnitude | 18.08 (0.03) | 18.05 | |||||||
| Pan g magnitude | 19.31 (0.008) | ||||||||
| Pan r magnitude | 19.29 (0.01) | ||||||||
| Pan i magnitude | 18.55 (0.006) | ||||||||
| Pan z magnitude | 18.01 (0.007) | ||||||||
| Pan y magnitude | 17.73 (0.006) | ||||||||
| 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.