All names: TIC 437046169, SDSS J085741.43+153905.9, Gaia EDR3 610573581592033664, Gaia DR2 610573581592033664, 2MASS J08574143+1539060, WIRED J085741.43+153905.9, [SGR2010] J0857+1539, SDSS J085741.44+153906.0, SDSS J085741.52+153906.1, WD 0854+158, Gaia DR3 610573581592033664
| 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 | 08 57 41.44 (0.1) | 08 57 41.44 | 08 57 41.44 (0.2) | 08 57 41.43 | 08 57 41.44 (0.1) | 08 57 41.28 | 08 57 41.44 | |||
| Declination | 15 39 05.93 (0.08) | 15 39 05.96 | 15 39 05.93 (0.1) | 15 39 05.90 | 15 39 05.95 (0.08) | 15 39 05.04 | 15 39 05.98 | |||
| Spectral type | DA+M | DA+dMe | DA dM | DA+M | ||||||
| Effective temperature | [K] | 27425.0 (772) | 6300.0 (2) | |||||||
| log(g) | [cgs] | 7.82 (0.1) | 5.02 (0.03) | |||||||
| Mass | [M☉] | 0.55 (0.06) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.42 (0.1) | 1.51 (0.2) | 1.42 (0.1) | ||||||
| Distance | [pc] | 702.57 (73) | 660.89 (96) | 902.00 (251) | 702.59 (73) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.018048005 (0.2) | 1.93317764 (0.3) | 2.018 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | -1.239463924 (0.1) | -0.935568938 (0.2) | -1.239 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.73 (0.07) | |||||||||
| H magnitude | 15.18 (0.09) | |||||||||
| K magnitude | 14.96 (0.1) | |||||||||
| u magnitude | 18.88 (0.02) | 18.94 | 18.90 (0.02) | 18.93 | 18.90 (0.02) | |||||
| g magnitude | 18.73 (0.008) | 18.77 | 18.74 (0.009) | 18.76 | 18.75 (0.02) | |||||
| r magnitude | 18.30 (0.008) | 18.33 | 18.31 (0.008) | 18.32 | 18.32 (0.02) | |||||
| i magnitude | 17.62 (0.007) | 17.64 | 17.62 (0.006) | 17.64 | 17.64 (0.02) | |||||
| z magnitude | 17.12 (0.01) | 17.11 | 17.11 (0.01) | 17.11 | 17.12 (0.02) | |||||
| G magnitude | 18.02 (0.02) | 18.05 | 18.02 (0.003) | |||||||
| BP magnitude | 18.62 (0.02) | 18.59 | ||||||||
| RP magnitude | 17.20 (0.01) | 17.21 | ||||||||
| Pan g magnitude | 18.72 (0.006) | |||||||||
| Pan r magnitude | 18.31 (0.004) | |||||||||
| Pan i magnitude | 17.61 (0.005) | |||||||||
| Pan z magnitude | 17.23 (0.005) | |||||||||
| Pan y magnitude | 17.04 (0.01) | |||||||||
| E(B-V) | 0.027 | |||||||||
* 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.