All names: [HHD2009] SDSS J1209+6510, Gaia EDR3 1585133138870063872, TIC 157333452, WISEA J120909.35+651019.8, Gaia DR2 1585133138870063872, 2MASS J12090941+6510199, SDSS J120909.36+651020.9, WISE J120909.36+651020.0, WIRED J120909.35+651020.7, SDSS J120909.35+651020.8, WD 1206+654, SDSS J120909.36+651020.8, SDSS J120909.35+651020.7, SDSS J120909.35+651020.6, SDSS J120909.36+651020.7
| 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 | 12 09 09.35 (0.3) | 12 09 09.35 | 12 09 09.35 (0.4) | 12 09 09.35 | 12 09 09.35 | 12 09 09.35 | 12 09 08.74 | 12 09 09.36 | ||||
| Declination | 65 10 20.32 (0.3) | 65 10 20.70 | 65 10 20.33 (0.3) | 65 10 20.71 | 65 10 20.69 | 65 10 20.83 | 65 10 18.48 | 65 10 20.79 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 13127.0 (800) | 15560.0 (810) | 9618.0 (70) | 9467.0 (75) | |||||||
| log(g) | [cgs] | 7.90 (0.2) | 8.04 (0.1) | 7.94 (0.08) | 7.84 (0.1) | |||||||
| Mass | [M☉] | 0.55 (0.1) | 0.64 (0.07) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.2239 | ||||||||||
| 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] | 3.38 (0.3) | 3.23 (0.5) | |||||||||
| Distance | [pc] | 295.89 (30) | 309.81 (45) | 818.00 (96) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.474378485 (0.3) | 2.37199899 (0.7) | 5.0 (3) | 7.2 | |||||||
| Proper motion (declination) | [mas/yr] | -30.94538213 (0.3) | -31.13101783 (0.6) | -31.0 (3) | -33.3 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.20 (0.1) | |||||||||||
| H magnitude | 15.76 (0.2) | |||||||||||
| K magnitude | 15.38 (0.04) | |||||||||||
| u magnitude | 19.41 (0.03) | 19.36 | 19.41 (0.03) | 19.36 (0.03) | 19.37 | 19.39 (0.03) | ||||||
| g magnitude | 18.95 (0.009) | 18.96 | 18.95 (0.009) | 18.96 (0.02) | 18.96 | 18.97 (0.02) | ||||||
| r magnitude | 19.04 (0.01) | 19.07 | 19.04 (0.01) | 19.07 (0.02) | 19.07 | 19.08 (0.02) | ||||||
| i magnitude | 18.56 (0.01) | 18.61 | 18.56 (0.01) | 18.61 (0.02) | 18.61 | 18.62 (0.02) | ||||||
| z magnitude | 17.84 (0.02) | 17.90 | 17.84 (0.02) | 17.90 (0.03) | 17.90 | 17.92 (0.03) | ||||||
| G magnitude | 19.14 (0.02) | 19.12 | ||||||||||
| BP magnitude | 19.06 (0.02) | 19.07 | ||||||||||
| RP magnitude | 18.07 (0.02) | 18.06 | ||||||||||
| Pan g magnitude | 18.99 (0.01) | |||||||||||
| Pan r magnitude | 19.08 (0.01) | |||||||||||
| Pan i magnitude | 18.63 (0.009) | |||||||||||
| Pan z magnitude | 18.04 (0.006) | |||||||||||
| Pan y magnitude | 17.68 (0.01) | |||||||||||
| E(B-V) | 0.018 | |||||||||||
* 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.