All names: [HHD2009] SDSS J1231+5535, SDSS J123152.96+553525.7, [SGR2010] J1231+5535, SDSS J123152.95+553525.5, SDSS J123152.96+553525.5, LAMOST J123152.95+553525.7, WIRED J123152.95+553525.5, Gaia DR2 1571183115157301760, 2MASS J12315292+5535255, WD 1229+558, Gaia DR3 1571183115157301760, Gaia EDR3 1571183115157301760, SDSS J123152.95+553525.4, TIC 316331383, GALEX J123153.0+553526
| 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 31 52.92 (1) | 12 31 52.95 | 12 31 52.92 (1) | 12 31 52.95 | 12 31 52.92 (1) | 12 31 52.96 | 12 31 52.66 | 12 31 52.96 | ||||
| Declination | 55 35 25.65 (1) | 55 35 25.47 | 55 35 25.65 (0.8) | 55 35 25.51 | 55 35 25.65 (1) | 55 35 25.49 | 55 35 21.12 | 55 35 25.53 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 10548.0 (104) | 10920.0 (160) | 8922.0 (44) | 8709.0 (56) | |||||||
| log(g) | [cgs] | 8.30 (0.1) | 8.34 (0.07) | 7.14 (0.1) | 6.67 (0.1) | |||||||
| Mass | [M☉] | 0.79 (0.06) | 0.81 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.8318 | ||||||||||
| 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] | |||||||||||
| Distance | [pc] | 802.00 (124) | ||||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.0 (3) | -16.6 | |||||||||
| Proper motion (declination) | [mas/yr] | 10.0 (3) | 11.1 | |||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.37 (0.04) | |||||||||||
| H magnitude | 14.83 (0.07) | |||||||||||
| K magnitude | 14.54 (0.07) | |||||||||||
| u magnitude | 18.58 (0.02) | 18.52 | 18.58 (0.02) | 18.52 (0.02) | 18.52 | 18.53 (0.02) | ||||||
| g magnitude | 18.04 (0.006) | 18.05 | 18.04 (0.006) | 18.05 (0.01) | 18.05 | 18.05 (0.01) | ||||||
| r magnitude | 17.98 (0.007) | 17.97 | 17.98 (0.007) | 17.96 (0.02) | 17.97 | 17.97 (0.02) | ||||||
| i magnitude | 17.37 (0.006) | 17.32 | 17.36 (0.006) | 17.32 (0.02) | 17.32 | 17.32 (0.02) | ||||||
| z magnitude | 16.77 (0.01) | 16.77 | 16.78 (0.01) | 16.77 (0.02) | 16.77 | 16.78 (0.02) | ||||||
| G magnitude | 17.98 (0.01) | 17.79 | 17.98 (0.01) | |||||||||
| BP magnitude | 18.08 (0.01) | 18.06 | ||||||||||
| RP magnitude | 16.91 (0.007) | 16.92 | ||||||||||
| Pan g magnitude | 18.04 (0.007) | |||||||||||
| Pan r magnitude | 17.96 (0.003) | |||||||||||
| Pan i magnitude | 17.38 (0.002) | |||||||||||
| Pan z magnitude | 16.89 (0.007) | |||||||||||
| Pan y magnitude | 16.60 (0.005) | |||||||||||
| E(B-V) | 0.019 | |||||||||||
* 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.