All names: GALEX J122830.2+125634, PSO J187.1260+12.9432, Gaia DR3 3907977484067188096, WD 1225+132, TIC 241268825, 2MASS J12283027+1256347, SDSS J122830.26+125635.3, SDSS J122830.27+125635.4, J1228+1256, WIRED J122830.26+125635.3, SDSS J122830.27+125635.3, WDJ122830.26+125635.21, Gaia EDR3 3907977484067188096, LBQS 1225+1313, USNO-B1.0 1029-00248115, A3 226, RMB 93, Gaia DR2 3907977484067188096
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 28 30.25 (0.06) | 12 28 30.27 | 12 28 30.25 (0.09) | 12 28 30.25 | 12 28 30.26 (0.06) | 12 28 30.25 | 12 28 30.27 | 12 28 29.93 | 12 28 30.27 | |||||||||
| Declination | 12 56 35.88 (0.04) | 12 56 35.38 | 12 56 35.86 (0.05) | 12 56 35.88 | 12 56 35.21 (0.04) | 12 56 35.86 | 12 56 35.39 | 12 56 30.84 | 12 56 35.39 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||||
| Effective temperature | [K] | 7339.0 (23) | 7245.0 (60) | 7272.0 | 7007.0 | 7310.0 (40) | 7380.0 (72) | 7815.0 (25) | 7189.0 (27) | |||||||||
| log(g) | [cgs] | 8.01 (0.008) | 7.99 (0.02) | 7.98 | 7.87 | 7.90 (0.07) | 8.02 (0.02) | 8.48 (0.05) | 7.71 (0.05) | |||||||||
| Mass | [M☉] | 0.597 (0.007) | 0.584 (0.01) | 0.583 | 0.5 | 0.54 (0.04) | 0.604 (0.01) | 0.461 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||
| Cooling age | [Gyr] | 1.4000 | 1.3660 (0.05) | 1.3510 | 1.3180 | 1.2023 | ||||||||||||
| 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] | 19.38 (0.06) | 19.33 (0.09) | 19.33 (0.09) | 19.33 (0.09) | 19.38 | 19.38 (0.06) | 19.33 (0.09) | ||||||||||
| Distance | [pc] | 51.61 (0.2) | 51.73 (0.2) | 51.72 (0.3) | 51.72 (0.3) | 51.61 | 51.61 (0.2) | 51.72 (0.3) | ||||||||||
| Composition | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.36257001 (0.08) | -10.41941444 (0.2) | -10.363 (0.08) | -10.419 | -5.2 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 41.95109142 (0.05) | 42.06018429 (0.1) | 41.951 (0.05) | 42.06 | 40.0 | ||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 17.10 | |||||||||||||||||
| V magnitude | ||||||||||||||||||
| R magnitude | 16.60 | |||||||||||||||||
| I magnitude | ||||||||||||||||||
| J magnitude | 16.22 (0.01) | 16.29 (0.1) | 16.21 (0.01) | |||||||||||||||
| H magnitude | 16.08 (0.01) | 16.15 (0.2) | 16.09 (0.01) | |||||||||||||||
| K magnitude | 16.08 (0.03) | 15.88 (0.2) | 16.08 (0.03) | |||||||||||||||
| u magnitude | 17.51 (0.01) | 17.51 (0.01) | 17.52 (0.01) | 17.51 (0.01) | 17.56 (0.05) | 17.55 | 17.56 (0.05) | |||||||||||
| g magnitude | 16.99 (0.004) | 17.00 (0.003) | 17.00 (0.004) | 16.98 (0.02) | 16.97 | 16.99 (0.02) | ||||||||||||
| r magnitude | 16.85 (0.004) | 16.86 (0.003) | 16.86 (0.004) | 16.84 (0.02) | 16.83 | 16.85 (0.02) | ||||||||||||
| i magnitude | 16.83 (0.005) | 16.87 (0.003) | 16.83 (0.005) | 16.84 (0.02) | 16.83 | 16.84 (0.02) | ||||||||||||
| z magnitude | 16.91 (0.01) | 16.92 (0.003) | 16.90 (0.01) | 16.94 (0.02) | 16.93 | 16.91 (0.02) | ||||||||||||
| G magnitude | 16.83 (0.005) | 16.84 | 16.83 | 16.83 (0.003) | 16.84 | |||||||||||||
| BP magnitude | 17.00 (0.005) | 16.99 | 16.99 | |||||||||||||||
| RP magnitude | 16.52 (0.006) | 16.52 | 16.52 | |||||||||||||||
| Pan g magnitude | 17.00 (0.003) | 17.00 (0.003) | 17.00 (0.003) | |||||||||||||||
| Pan r magnitude | 16.86 (0.003) | 16.86 (0.003) | 16.86 (0.003) | |||||||||||||||
| Pan i magnitude | 16.87 (0.003) | 16.87 (0.003) | 16.87 (0.003) | |||||||||||||||
| Pan z magnitude | 16.92 (0.002) | 16.92 (0.003) | 16.92 (0.003) | |||||||||||||||
| Pan y magnitude | 16.95 (0.006) | 16.95 (0.006) | 16.95 (0.006) | |||||||||||||||
| E(B-V) | 0.002 | |||||||||||||||||
* 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.