All names: USNO-B1.0 1502-00184883, SDSS J085935.75+601614.4, Gaia DR2 1038076351151065088, 2MASS J08593591+6016161, SDSS J085935.74+601614.3, WD 0855+604.2, G 234-51, SBSS 0855+604A, WDJ085935.89+601616.14, LHS2086, LSPM J0859+6016W, WDS J08598+6018A, J0859+6016, LP 90-70, LHS 2086, EGGR 172, ** LDS 1222A, NLTT 20642, PSO J085935.454+601610.920, WD 0855+60
| Parameter | Unit | Coutu et al. 2019 | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 59 35.74 | 08 59 35.31 (0.04) | 08 59 35.74 | 08 59 35.89 (0.04) | 08 59 35.31 | 08 59 37.66 | 08 59 35.75 | ||
| Declination | 60 16 14.39 | 60 16 09.04 (0.05) | 60 16 14.39 | 60 16 16.14 (0.05) | 60 16 09.04 | 60 16 30.72 | 60 16 14.38 | ||
| Spectral type | DQ | DC+Ke? | DCE? | DQ | |||||
| Effective temperature | [K] | 7572.0 (167) | 10090.0 (22) | ||||||
| log(g) | [cgs] | 7.96 | 9.59 (0.4) | ||||||
| Mass | [M☉] | 0.5498 | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 1.2100 | |||||||
| log(H/He) | |||||||||
| log(C/He) | -5.6401 (0.05) | ||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | 23.94 | 23.94 (0.07) | 23.94 (0.07) | 23.94 (0.07) | ||||
| Distance | [pc] | 41.77 (0.1) | 41.77 (0.1) | 41.77 (0.1) | 41.77 (0.1) | ||||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -276.6438625 (0.09) | -276.644 (0.09) | -276.6438625 | |||||
| Proper motion (declination) | [mas/yr] | -457.9490663 (0.09) | -457.949 (0.09) | -457.9490663 | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.59 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.30 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.04 (0.09) | ||||||||
| H magnitude | 15.61 (0.1) | ||||||||
| K magnitude | |||||||||
| u magnitude | 16.72 (0.007) | 16.72 (0.007) | 16.72 (0.007) | 16.67 (0.01) | |||||
| g magnitude | 16.38 (0.004) | 16.38 (0.004) | 16.38 (0.004) | 16.38 (0.02) | |||||
| r magnitude | 16.31 (0.004) | 16.32 (0.004) | 16.32 (0.004) | 16.33 (0.03) | |||||
| i magnitude | 16.38 (0.004) | 16.38 (0.004) | 16.38 (0.004) | 16.40 (0.03) | |||||
| z magnitude | 16.49 (0.009) | 16.49 (0.009) | 16.49 (0.009) | 16.48 (0.02) | |||||
| G magnitude | 16.30 | 16.30 (0.0009) | 16.30 | ||||||
| BP magnitude | 16.38 | 16.38 | |||||||
| RP magnitude | 16.08 | 16.08 | |||||||
| Pan g magnitude | 16.41 (0.002) | ||||||||
| Pan r magnitude | 16.33 (0.003) | ||||||||
| Pan i magnitude | 16.40 (0.002) | ||||||||
| Pan z magnitude | 16.51 (0.007) | ||||||||
| Pan y magnitude | 16.59 (0.0006) | ||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.