All names: SDSS J155448.96+080158.3, WISE J155448.93+080157.8, Gaia EDR3 4454165107847801984, SDSS J155448.96+080158.2, SDSS J155448.94+080158.2, 2MASS J15544893+0801583, TIC 286115444, WD 1552+081, Gaia DR2 4454165107847801984, WISEA J155448.93+080157.6, Gaia DR3 4454165107847801984, SDSS J155448.95+080158.2
| 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) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 54 48.93 (0.1) | 15 54 48.95 | 15 54 48.93 (0.1) | 15 54 48.96 | 15 54 48.95 (0.1) | 15 54 48.67 | |||
| Declination | 08 01 57.24 (0.09) | 08 01 58.22 | 08 01 57.28 (0.1) | 08 01 58.19 | 08 01 58.46 (0.09) | 08 01 57.00 | |||
| Spectral type | WD+M | M3V | WD M | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 3.74 (0.1) | 3.86 (0.2) | 3.74 (0.1) | |||||
| Distance | [pc] | 267.61 (9) | 258.96 (12) | 267.61 (9) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -16.36707188 (0.1) | -17.12659992 (0.3) | -16.367 (0.1) | |||||
| Proper motion (declination) | [mas/yr] | -75.88090975 (0.1) | -75.73033801 (0.2) | -75.881 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.66 (0.05) | ||||||||
| H magnitude | 14.22 (0.06) | ||||||||
| K magnitude | 13.99 (0.06) | ||||||||
| u magnitude | 20.29 (0.04) | 20.37 | 20.30 (0.04) | 20.36 | |||||
| g magnitude | 18.96 (0.009) | 19.14 | 18.96 (0.009) | 19.13 | |||||
| r magnitude | 17.87 (0.006) | 17.95 | 17.87 (0.006) | 17.95 | |||||
| i magnitude | 16.70 (0.005) | 16.74 | 16.70 (0.005) | 16.73 | |||||
| z magnitude | 16.04 (0.007) | 16.06 | 16.04 (0.007) | 16.06 | |||||
| G magnitude | 17.45 (0.02) | 17.46 | 17.45 (0.003) | ||||||
| BP magnitude | 18.58 (0.02) | 18.54 | |||||||
| RP magnitude | 16.24 (0.005) | 16.26 | |||||||
| Pan g magnitude | 18.88 (0.02) | ||||||||
| Pan r magnitude | 17.94 (0.009) | ||||||||
| Pan i magnitude | 16.72 (0.003) | ||||||||
| Pan z magnitude | 16.16 (0.003) | ||||||||
| Pan y magnitude | 15.91 (0.003) | ||||||||
| E(B-V) | 0.033 | ||||||||
* 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.