All names: SDSS J145632.76+482446.3, TIC 309765651, SDSS J145632.77+482446.2, LAMOST J145632.77+482446.1, [HHD2009] SDSS J1456+4824, WISE J145632.74+482445.7, 2MASS J14563274+4824459, WD 1454+486, Gaia EDR3 1590587678617196672, SDSS J145632.77+482446.1, WISEA J145632.74+482445.7, GALEX J145632.8+482446, Gaia DR2 1590587678617196672, WIRED J145632.77+482446.1, SDSS J145632.78+482446.3, SDSS J145632.77+482446.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 56 32.73 (0.3) | 14 56 32.78 | 14 56 32.73 (0.3) | 14 56 32.77 | 14 56 32.78 | 14 56 32.78 | 14 56 32.38 | 14 56 32.77 | ||||
| Declination | 48 24 45.67 (0.2) | 48 24 46.35 | 48 24 45.67 (0.2) | 48 24 46.12 | 48 24 46.35 | 48 24 46.39 | 48 24 40.32 | 48 24 46.19 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 28389.0 (649) | 28920.0 (620) | 8125.0 (52) | 7842.0 (61) | |||||||
| log(g) | [cgs] | 7.77 (0.1) | 7.76 (0.1) | 8.47 (0.07) | 7.98 (0.08) | |||||||
| Mass | [M☉] | 0.53 (0.07) | 0.53 (0.05) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0110 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 2.04 (0.3) | 1.94 (0.3) | |||||||||
| Distance | [pc] | 489.54 (61) | 515.83 (76) | 351.00 (47) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.40939225 (0.3) | -20.09244389 (0.5) | -19.0 (3) | -18.6 | |||||||
| Proper motion (declination) | [mas/yr] | -2.32515338 (0.2) | -2.059845155 (0.5) | -2.0 (3) | -3.3 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.07 (0.09) | |||||||||||
| H magnitude | 15.86 (0.2) | |||||||||||
| K magnitude | 15.35 (0.2) | |||||||||||
| u magnitude | 18.34 (0.02) | 18.34 | 18.34 (0.02) | 18.34 (0.02) | 18.34 | 18.35 (0.02) | ||||||
| g magnitude | 18.43 (0.007) | 18.50 | 18.43 (0.007) | 18.50 (0.01) | 18.51 | 18.50 (0.01) | ||||||
| r magnitude | 18.60 (0.03) | 18.71 | 18.60 (0.03) | 18.71 (0.01) | 18.72 | 18.72 (0.01) | ||||||
| i magnitude | 17.97 (0.008) | 18.15 | 17.98 (0.008) | 18.15 (0.01) | 18.15 | 18.15 (0.01) | ||||||
| z magnitude | 17.38 (0.02) | 17.47 | 17.38 (0.01) | 17.47 (0.03) | 17.47 | 17.47 (0.03) | ||||||
| G magnitude | 19.06 (0.04) | 19.05 | ||||||||||
| BP magnitude | 18.67 (0.04) | 18.67 | ||||||||||
| RP magnitude | 17.62 (0.01) | 17.58 | ||||||||||
| Pan g magnitude | 18.58 (0.005) | |||||||||||
| Pan r magnitude | 18.68 (0.01) | |||||||||||
| Pan i magnitude | 18.11 (0.01) | |||||||||||
| Pan z magnitude | 17.60 (0.01) | |||||||||||
| Pan y magnitude | 17.35 (0.008) | |||||||||||
| E(B-V) | 0.021 | |||||||||||
* 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.