All names: Gaia DR3 3681534232558058368, WD 1229-028, SDSS J123139.80-031000.4, Gaia DR2 3681534232558058368, TIC 130636817, SDSS J123139.80-031000.3, 2MASS J12313980-0310002, WIRED J123139.80-031000.3, SDSS J123139.81-031000.3, [SGR2010] J1231-0310, SBC9 3369, [HHD2009] SDSS J1231-0310, Gaia EDR3 3681534232558058368
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 31 39.79 (0.1) | 12 31 39.80 | 12 31 39.79 (0.1) | 12 31 39.80 | 12 31 39.80 (0.1) | 12 31 39.80 | 12 31 39.22 | 12 31 39.81 | |||
| Declination | -03 10 01.12 (0.07) | -03 10 00.40 | -03 10 01.10 (0.1) | -03 10 00.30 | -03 10 00.40 (0.07) | -03 10 00.43 | -03 09 57.60 | -03 10 00.35 | |||
| Spectral type | DA+M | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 20331.0 (1173) | 6300.0 (1) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 7.35 (0.2) | 8.47 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.35 (0.07) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.72 (0.1) | 3.79 (0.2) | 3.72 (0.1) | |||||||
| Distance | [pc] | 268.76 (8) | 263.61 (11) | 738.00 (136) | 268.77 (8) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -8.958024009 (0.1) | -8.713681773 (0.3) | -8.958 (0.1) | 2.4 | ||||||
| Proper motion (declination) | [mas/yr] | -45.13834363 (0.1) | -45.06631179 (0.2) | -45.138 (0.1) | -48.5 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 14.80 (0.04) | ||||||||||
| H magnitude | 14.18 (0.02) | ||||||||||
| K magnitude | 13.99 (0.07) | ||||||||||
| u magnitude | 19.41 (0.03) | 19.39 | 19.39 (0.03) | 19.39 (0.03) | 19.39 | 19.41 (0.03) | |||||
| g magnitude | 18.65 (0.008) | 18.66 | 18.65 (0.008) | 18.66 (0.02) | 18.66 | 18.67 (0.02) | |||||
| r magnitude | 18.21 (0.008) | 18.19 | 18.21 (0.008) | 18.19 (0.01) | 18.19 | 18.19 (0.01) | |||||
| i magnitude | 17.09 (0.006) | 17.08 | 17.09 (0.006) | 17.08 (0.02) | 17.08 | 17.09 (0.02) | |||||
| z magnitude | 16.26 (0.008) | 16.27 | 16.26 (0.008) | 16.27 (0.02) | 16.27 | 16.26 (0.02) | |||||
| G magnitude | 17.65 (0.03) | 17.66 | 17.65 (0.003) | ||||||||
| BP magnitude | 18.63 (0.03) | 18.57 | |||||||||
| RP magnitude | 16.61 (0.008) | 16.59 | |||||||||
| Pan g magnitude | 18.66 (0.006) | ||||||||||
| Pan r magnitude | 18.23 (0.005) | ||||||||||
| Pan i magnitude | 17.15 (0.008) | ||||||||||
| Pan z magnitude | 16.46 (0.009) | ||||||||||
| Pan y magnitude | 16.12 (0.002) | ||||||||||
| E(B-V) | 0.024 | ||||||||||
* 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.