All names: TIC 272243771, SDSS J144258.48+001031.5, [SGR2010] J1442+0010, SDSS J144258.47+001031.5, LAMOST J144258.43+001031.4, LAMOST J144258.47+001031.6, 2MASS J14425846+0010317, Gaia DR2 3651721077849744896, SDSS J144258.47+001031.6, 2QZ J144258.5+001031, WIRED J144258.47+001031.5, Gaia EDR3 3651721077849744896, Gaia DR3 3651721077849744896, WD 1440+003, [HHD2009] SDSS J1442+0010
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 42 58.45 (0.2) | 14 42 58.48 | 14 42 58.45 (0.2) | 14 42 58.47 | 14 42 58.47 (0.2) | 14 42 58.47 | 14 42 57.55 | 14 42 58.47 | |||||
| Declination | 00 10 31.54 (0.1) | 00 10 31.56 | 00 10 31.54 (0.2) | 00 10 31.51 | 00 10 31.55 (0.1) | 00 10 31.53 | 00 10 28.92 | 00 10 31.53 | |||||
| Spectral type | DB+M | DB+M | DB3.5+M | DB3.5+M | DB+M | DB+ME | DB+M | ||||||
| Effective temperature | [K] | 31324.0 (234) | 15580.0 (125) | 16097.0 (82) | |||||||||
| log(g) | [cgs] | 7.80 (0.03) | 7.53 (0.08) | 8.00 (0.06) | |||||||||
| Mass | [M☉] | ||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 2.80 (0.2) | 2.84 (0.2) | 2.80 (0.2) | |||||||||
| Distance | [pc] | 357.64 (25) | 352.61 (29) | 529.00 (63) | 357.64 (25) | ||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.00200547 (0.2) | -19.86050624 (0.4) | -20.002 (0.2) | -15.5 | ||||||||
| Proper motion (declination) | [mas/yr] | -0.750105409 (0.1) | -0.847218338 (0.3) | -0.75 (0.1) | 0.4 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.29 (0.005) | ||||||||||||
| H magnitude | 14.70 (0.005) | ||||||||||||
| K magnitude | 14.42 (0.007) | ||||||||||||
| u magnitude | 18.37 (0.01) | 18.39 | 18.39 | 18.37 (0.01) | 18.39 (0.02) | 18.39 | 18.38 (0.02) | ||||||
| g magnitude | 18.34 (0.007) | 18.35 | 18.34 | 18.33 (0.007) | 18.35 (0.02) | 18.34 | 18.33 (0.02) | ||||||
| r magnitude | 18.28 (0.007) | 18.27 | 18.27 | 18.28 (0.007) | 18.27 (0.02) | 18.27 | 18.26 (0.02) | ||||||
| i magnitude | 17.48 (0.006) | 17.47 | 17.47 | 17.48 (0.006) | 17.47 (0.02) | 17.47 | 17.48 (0.02) | ||||||
| z magnitude | 16.77 (0.01) | 16.75 | 16.74 | 16.77 (0.01) | 16.75 (0.03) | 16.74 | 16.76 (0.03) | ||||||
| G magnitude | 17.84 (0.02) | 17.84 | 17.84 (0.003) | ||||||||||
| BP magnitude | 18.32 (0.02) | 18.35 | |||||||||||
| RP magnitude | 16.96 (0.01) | 16.98 | |||||||||||
| Pan g magnitude | 18.36 (0.007) | ||||||||||||
| Pan r magnitude | 18.30 (0.007) | ||||||||||||
| Pan i magnitude | 17.48 (0.004) | ||||||||||||
| Pan z magnitude | 16.87 (0.004) | ||||||||||||
| Pan y magnitude | 16.57 (0.004) | ||||||||||||
| E(B-V) | 0.041 | ||||||||||||
* 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.