All names: SDSS J125109.24+004321.0, Gaia DR2 3690104509085263488, Gaia EDR3 3690104509085263488, Gaia DR3 3690104509085263488, SDSS J125109.24+004320.9, SDSS J125109.24+004321.1, WIRED J125109.24+004321.0, WD 1248+009, [HHD2009] SDSS J1251+0043
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 51 09.24 (0.5) | 12 51 09.25 | 12 51 09.24 (0.6) | 12 51 09.24 | 12 51 09.25 (0.5) | 12 51 09.24 | 12 51 08.54 | 12 51 09.24 | ||||
| Declination | 00 43 21.02 (0.3) | 00 43 21.01 | 00 43 21.02 (0.4) | 00 43 21.00 | 00 43 21.04 (0.3) | 00 43 20.98 | 00 43 17.40 | 00 43 21.07 | ||||
| Spectral type | DA+M | DA4+M | DA+dMe | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 16336.0 (1513) | 8727.0 (178) | 8339.0 (215) | ||||||||
| log(g) | [cgs] | 8.17 (0.3) | 7.79 (0.3) | 8.10 (0.3) | ||||||||
| Mass | [M☉] | 0.72 (0.2) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 1.18 (0.5) | 1.19 (0.6) | 1.18 (0.5) | ||||||||
| Distance | [pc] | 849.90 (392) | 839.49 (433) | 444.00 (79) | 849.91 (392) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.47838603 (1) | -6.231548207 (1) | -7.478 (1) | ||||||||
| Proper motion (declination) | [mas/yr] | -1.791184602 (0.7) | -1.481234106 (0.8) | -1.791 (0.7) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | ||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.74 (0.06) | 20.62 | 20.63 | 20.62 (0.05) | 20.62 (0.05) | 20.63 | 20.62 (0.05) | |||||
| g magnitude | 20.30 (0.02) | 20.23 | 20.24 | 20.23 (0.02) | 20.23 (0.03) | 20.24 | 20.22 (0.03) | |||||
| r magnitude | 20.41 (0.03) | 20.40 | 20.45 | 20.41 (0.03) | 20.40 (0.03) | 20.45 | 20.39 (0.03) | |||||
| i magnitude | 19.93 (0.03) | 19.87 | 19.88 | 19.88 (0.03) | 19.87 (0.03) | 19.88 | 19.86 (0.03) | |||||
| z magnitude | 19.35 (0.05) | 19.27 | 19.26 | 19.28 (0.05) | 19.27 (0.05) | 19.27 | 19.27 (0.05) | |||||
| G magnitude | 20.00 (0.1) | 20.03 | 20.00 (0.005) | |||||||||
| BP magnitude | 20.42 (0.1) | 20.25 | ||||||||||
| RP magnitude | 19.35 (0.06) | 19.30 | ||||||||||
| Pan g magnitude | 20.26 (0.02) | |||||||||||
| Pan r magnitude | 20.27 (0.03) | |||||||||||
| Pan i magnitude | 19.87 (0.02) | |||||||||||
| Pan z magnitude | 19.37 (0.02) | |||||||||||
| Pan y magnitude | 19.02 (0.02) | |||||||||||
| 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.