All names: SDSS J155742.72+362820.6, Gaia DR2 1373096715204823168, [HHD2009] SDSS J1557+3628, Gaia DR3 1373096715204823168, SDSS J155742.68+362820.7, WD 1555+366, 2MASS J15574268+3628208, TIC 29397810, SDSS J155742.68+362820.6, Gaia EDR3 1373096715204823168, WIRED J155742.68+362820.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 57 42.68 (0.1) | 15 57 42.68 | 15 57 42.68 (0.2) | 15 57 42.68 | 15 57 42.69 (0.1) | 15 57 42.68 | 15 57 42.24 | 15 57 42.68 | |||
| Declination | 36 28 20.46 (0.2) | 36 28 20.68 | 36 28 20.47 (0.2) | 36 28 20.60 | 36 28 20.81 (0.2) | 36 28 20.63 | 36 28 14.88 | 36 28 20.63 | |||
| Spectral type | DA+M | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 14228.0 (2876) | 6302.0 (6) | 6302.0 (6) | |||||||
| log(g) | [cgs] | 8.38 (0.4) | 5.81 (0.7) | 7.04 (0.2) | |||||||
| Mass | [M☉] | 0.85 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.17 (0.2) | 2.03 (0.3) | 2.17 (0.2) | |||||||
| Distance | [pc] | 461.02 (39) | 491.52 (65) | 461.02 (39) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.320289679 (0.2) | -2.830677263 (0.4) | -2.32 (0.2) | -1.7 | ||||||
| Proper motion (declination) | [mas/yr] | -21.56113531 (0.2) | -21.21721762 (0.6) | -21.561 (0.2) | -20.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.46 (0.1) | ||||||||||
| H magnitude | 15.79 (0.1) | ||||||||||
| K magnitude | 15.47 (0.2) | ||||||||||
| u magnitude | 19.79 (0.03) | 19.77 | 19.79 (0.03) | 19.77 (0.04) | 19.77 | 19.76 (0.04) | |||||
| g magnitude | 19.43 (0.01) | 19.46 | 19.44 (0.01) | 19.46 (0.01) | 19.46 | 19.44 (0.01) | |||||
| r magnitude | 19.46 (0.01) | 19.48 | 19.47 (0.01) | 19.48 (0.02) | 19.48 | 19.47 (0.02) | |||||
| i magnitude | 18.76 (0.01) | 18.79 | 18.78 (0.01) | 18.79 (0.01) | 18.79 | 18.77 (0.02) | |||||
| z magnitude | 18.01 (0.02) | 18.02 | 18.02 (0.02) | 18.02 (0.03) | 18.02 | 18.00 (0.03) | |||||
| G magnitude | 19.03 (0.04) | 19.05 | 19.03 (0.004) | ||||||||
| BP magnitude | 19.47 (0.04) | 19.58 | |||||||||
| RP magnitude | 18.23 (0.02) | 18.22 | |||||||||
| Pan g magnitude | 19.45 (0.006) | ||||||||||
| Pan r magnitude | 19.44 (0.003) | ||||||||||
| Pan i magnitude | 18.75 (0.005) | ||||||||||
| Pan z magnitude | 18.14 (0.006) | ||||||||||
| Pan y magnitude | 17.78 (0.01) | ||||||||||
| E(B-V) | 0.022 | ||||||||||
* 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.