All names: SDSS J165112.43+415139.1, SDSS J165112.42+415139.1, SDSS J165112.44+415139.2, SDSS J165112.43+415139.2, GALEX J165112.4+415138, Gaia DR3 1356348954089918208, SDSS J165112.42+415139.2, WD 1649+419, TIC 459285692, WIRED J165112.43+415139.1, Gaia DR2 1356348954089918208, 2MASS J16511245+4151390, Gaia EDR3 1356348954089918208, [HHD2009] SDSS J1651+4151
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 51 12.43 (0.4) | 16 51 12.42 | 16 51 12.43 (0.5) | 16 51 12.43 (0.4) | 16 51 12.43 | 16 51 11.57 | 16 51 12.44 | |||
| Declination | 41 51 39.26 (0.4) | 41 51 39.21 | 41 51 39.26 (0.5) | 41 51 39.23 (0.4) | 41 51 39.21 | 41 51 36.36 | 41 51 39.17 | |||
| Spectral type | DA+M | DA+M | DA:+M | DA+M | DA+M | |||||
| Effective temperature | [K] | 56743.0 (6343) | 6519.0 (46) | 6300.0 (4) | ||||||
| log(g) | [cgs] | 7.63 (0.4) | 8.72 (0.2) | 10.00 (0.003) | ||||||
| Mass | [M☉] | 0.55 (0.1) | ||||||||
| log(Luminosity) | [L☉] | 0.52 (0.3) | ||||||||
| Cooling age | [Gyr] | 0.0011 (0.0006) | ||||||||
| 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] | -0.17 (0.4) | -0.93 (0.5) | |||||||
| Distance | [pc] | |||||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.263585546 (0.4) | 2.0823211 (1) | -0.264 (0.4) | 5.1 | |||||
| Proper motion (declination) | [mas/yr] | 1.850356608 (0.5) | -2.440477302 (1) | 1.85 (0.5) | 2.7 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.57 (0.2) | |||||||||
| H magnitude | 16.03 (0.2) | |||||||||
| K magnitude | 15.75 (0.2) | |||||||||
| u magnitude | 18.78 (0.02) | 18.70 (0.02) | 18.70 (0.02) | 18.71 | 18.69 (0.02) | |||||
| g magnitude | 18.77 (0.009) | 18.81 (0.009) | 18.82 (0.01) | 18.82 | 18.82 (0.01) | |||||
| r magnitude | 18.46 (0.009) | 18.45 (0.008) | 18.46 (0.01) | 18.46 | 18.46 (0.01) | |||||
| i magnitude | 18.03 (0.008) | 18.04 (0.008) | 18.06 (0.01) | 18.05 | 18.05 (0.01) | |||||
| z magnitude | 17.75 (0.02) | 17.73 (0.02) | 17.71 (0.02) | 17.70 | 17.71 (0.02) | |||||
| G magnitude | 18.47 (0.02) | 18.41 | 18.47 (0.006) | |||||||
| BP magnitude | 18.67 (0.02) | 18.57 | ||||||||
| RP magnitude | 17.65 (0.009) | 17.64 | ||||||||
| Pan g magnitude | 18.84 (0.008) | |||||||||
| Pan r magnitude | 18.47 (0.006) | |||||||||
| Pan i magnitude | 18.05 (0.003) | |||||||||
| Pan z magnitude | 17.82 (0.003) | |||||||||
| Pan y magnitude | 17.68 (0.01) | |||||||||
| E(B-V) | ||||||||||
* 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.