All names: GALEX J122859.9+104032, WD 1226+110, WIRED J122859.93+104032.9, SDSS J122859.92+104032.9, LAMOST J122859.90+104032.7, WISEA J122859.87+104032.8, SDSS J122859.93+104033.0, SDSS J122859.92+104033.0, Gaia EDR3 3904415787947492096, Gaia DR3 3904415787947492096, WD 1226+109, LAMOST J122859.93+104032.9, SDSS J122859.93+104032.9, WISE J122859.87+104032.8, Gaia DR2 3904415787947492096
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Guo et al. 2015 | Gaensicke et al. 2012 | Tremblay et al. 2011 | Farihi et al. 2010 | Brinkworth et al. 2009 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 28 59.88 (0.05) | 12 28 59.93 | 12 28 59.88 (0.08) | 12 28 59.88 | 12 28 59.93 (0.05) | 12 28 59.93 | 12 28 59.21 | 12 28 59.93 | |||||||||
| Declination | 10 40 32.65 (0.04) | 10 40 33.00 | 10 40 32.66 (0.05) | 10 40 32.65 | 10 40 33.05 (0.04) | 10 40 33.01 | 10 40 31.08 | 10 40 32.93 | |||||||||
| Spectral type | DA;debris_disk | DAZ | DA | DA | DAZe | DA_auto | DA | DAZE: | DA | ||||||||
| Effective temperature | [K] | 23491.0 (204) | 20900.0 (900) | 23510.0 (180) | 22000.0 | 19970.0 (503) | 22125.0 (136) | 22642.0 (142) | |||||||||
| log(g) | [cgs] | 8.22 (0.03) | 8.15 (0.04) | 8.16 (0.03) | 8.04 (0.02) | 8.22 (0.02) | 8.21 (0.02) | ||||||||||
| Mass | [M☉] | 0.76 (0.02) | 0.73 (0.02) | 0.649 (0.02) | |||||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 0.0525 | |||||||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | -5.7 (0.2) | ||||||||||||||||
| log(C/H) | -7.5 (0.2) | ||||||||||||||||
| log(N/H) | |||||||||||||||||
| log(O/H) | -4.55 (0.2) | ||||||||||||||||
| log(Na/H) | |||||||||||||||||
| log(Mg/H) | -5.1 (0.2) | ||||||||||||||||
| log(Al/H) | -5.75 (0.2) | ||||||||||||||||
| log(Si/H) | -5.2 (0.2) | ||||||||||||||||
| log(P/H) | <-7.30 | ||||||||||||||||
| log(S/H) | <-6.20 | ||||||||||||||||
| log(Sc/H) | |||||||||||||||||
| log(Ti/H) | |||||||||||||||||
| log(Cr/H) | <-6.00 | ||||||||||||||||
| log(Mn/H) | |||||||||||||||||
| log(Fe/H) | -5.2 (0.3) | ||||||||||||||||
| log(Ni/H) | <-6.50 | ||||||||||||||||
| Parallax | [mas] | 7.76 (0.07) | 7.89 (0.09) | 7.76 | 7.76 (0.07) | ||||||||||||
| Distance | [pc] | 128.81 (1) | 126.73 (1) | 128.81 | 128.81 (1) | ||||||||||||
| Composition | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -50.25391361 (0.07) | -49.93176399 (0.2) | -50.254 (0.07) | -44.6 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -24.72865661 (0.05) | -24.59599002 (0.1) | -24.729 (0.05) | -24.8 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | yes | yes | |||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | |||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.89 (0.01) | ||||||||||||||||
| H magnitude | 16.84 (0.02) | ||||||||||||||||
| K magnitude | 16.42 (0.04) | ||||||||||||||||
| u magnitude | 16.20 (0.006) | 16.20 (0.006) | 16.22 (0.01) | 16.21 | 16.20 (0.01) | ||||||||||||
| g magnitude | 16.21 (0.004) | 16.21 (0.004) | 16.25 (0.01) | 16.24 | 16.24 (0.01) | ||||||||||||
| r magnitude | 16.60 (0.004) | 16.60 (0.004) | 16.60 (0.02) | 16.59 | 16.60 (0.02) | ||||||||||||
| i magnitude | 16.90 (0.005) | 16.90 (0.005) | 16.91 (0.02) | 16.90 | 16.90 (0.02) | ||||||||||||
| z magnitude | 17.13 (0.01) | 17.13 (0.01) | 17.18 (0.04) | 17.17 | 17.16 (0.04) | ||||||||||||
| G magnitude | 16.41 (0.005) | 16.43 | 16.41 | 16.41 (0.003) | |||||||||||||
| BP magnitude | 16.35 (0.005) | 16.31 | |||||||||||||||
| RP magnitude | 16.61 (0.009) | 16.60 | |||||||||||||||
| Pan g magnitude | 16.27 (0.004) | ||||||||||||||||
| Pan r magnitude | 16.61 (0.002) | ||||||||||||||||
| Pan i magnitude | 16.93 (0.004) | ||||||||||||||||
| Pan z magnitude | 17.11 (0.003) | ||||||||||||||||
| Pan y magnitude | 17.34 (0.008) | ||||||||||||||||
| E(B-V) | 0.009 | ||||||||||||||||
* 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.