All names: SDSS J155135.79+341440.2, TIC 188547929, Gaia EDR3 1371719061494474240, [HHD2009] SDSS J1551+3414, SDSS J155135.76+341440.2, WIRED J155135.79+341440.2, Gaia DR2 1371719061494474240, WD 1549+343, 2MASS J15513578+3414402, Gaia DR3 1371719061494474240
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 51 35.80 (0.07) | 15 51 35.79 | 15 51 35.80 (0.09) | 15 51 35.79 | 15 51 35.79 (0.07) | 15 51 35.26 | 15 51 35.79 | |||
| Declination | 34 14 40.00 (0.08) | 34 14 40.24 | 34 14 40.01 (0.1) | 34 14 40.20 | 34 14 40.22 (0.08) | 34 14 34.08 | 34 14 40.24 | |||
| Spectral type | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 35740.0 (1196) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 7.48 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.45 (0.06) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.12 (0.1) | 0.84 (0.1) | 1.12 (0.1) | ||||||
| Distance | [pc] | 893.71 (81) | 1197.33 (182) | 893.73 (81) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 4.542205717 (0.09) | 4.989031607 (0.2) | 4.542 (0.09) | ||||||
| Proper motion (declination) | [mas/yr] | -13.56183619 (0.1) | -13.12254517 (0.2) | -13.562 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.05 (0.08) | |||||||||
| H magnitude | 15.40 (0.1) | |||||||||
| K magnitude | 15.24 (0.1) | |||||||||
| u magnitude | 18.86 (0.02) | 18.90 | 18.90 (0.02) | 18.90 | 18.88 (0.02) | |||||
| g magnitude | 18.79 (0.008) | 18.81 | 18.80 (0.008) | 18.81 | 18.81 (0.02) | |||||
| r magnitude | 18.44 (0.008) | 18.44 | 18.43 (0.008) | 18.44 | 18.44 (0.02) | |||||
| i magnitude | 17.77 (0.007) | 17.80 | 17.78 (0.008) | 17.80 | 17.79 (0.01) | |||||
| z magnitude | 17.31 (0.01) | 17.34 | 17.32 (0.01) | 17.34 | 17.32 (0.02) | |||||
| G magnitude | 18.15 (0.02) | 18.18 | 18.15 (0.003) | |||||||
| BP magnitude | 18.73 (0.02) | 18.68 | ||||||||
| RP magnitude | 17.34 (0.009) | 17.34 | ||||||||
| Pan g magnitude | 18.77 (0.01) | |||||||||
| Pan r magnitude | 18.43 (0.006) | |||||||||
| Pan i magnitude | 17.77 (0.004) | |||||||||
| Pan z magnitude | 17.36 (0.007) | |||||||||
| Pan y magnitude | 17.17 (0.005) | |||||||||
| E(B-V) | 0.023 | |||||||||
* 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.