All names: GALEX J234312.8+154107, 2MASS J23431295+1541064, TIC 434120697, WD 2340+154, Gaia DR3 2771402315752426240, Gaia DR2 2771402315752426240, [SGR2010] J2343+1541, Gaia EDR3 2771402315752426240, SDSS J234312.96+154106.4, SDSS J234312.95+154106.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 43 12.93 (0.08) | 23 43 12.95 | 23 43 12.93 (0.1) | 23 43 12.95 | 23 43 12.96 (0.08) | 23 43 12.31 | 23 43 12.96 | |||
| Declination | 15 41 06.36 (0.06) | 15 41 06.48 | 15 41 06.36 (0.07) | 15 41 06.40 | 15 41 06.45 (0.06) | 15 41 03.12 | 15 41 06.43 | |||
| Spectral type | DA+M | DA+M4 | DA dM | DA+M | ||||||
| Effective temperature | [K] | 26801.0 (1573) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 7.92 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.6 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 5.10 (0.1) | 4.87 (0.1) | 5.10 (0.1) | ||||||
| Distance | [pc] | 195.94 (4) | 205.53 (6) | 977.00 (140) | 195.94 (4) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -22.7986125 (0.1) | -22.36588516 (0.3) | -22.799 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -5.509489792 (0.08) | -5.442698986 (0.2) | -5.509 (0.08) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 14.35 (0.003) | |||||||||
| H magnitude | 13.80 (0.003) | |||||||||
| K magnitude | 13.53 (0.004) | |||||||||
| u magnitude | 19.29 (0.03) | 19.27 | 19.27 (0.03) | 19.27 | 19.28 (0.03) | |||||
| g magnitude | 18.51 (0.008) | 18.50 | 18.50 (0.008) | 18.50 | 18.51 (0.02) | |||||
| r magnitude | 17.83 (0.006) | 17.83 | 17.83 (0.006) | 17.83 | 17.82 (0.01) | |||||
| i magnitude | 16.61 (0.005) | 16.62 | 16.61 (0.005) | 16.61 | 16.61 (0.01) | |||||
| z magnitude | 15.82 (0.007) | 15.82 | 15.81 (0.007) | 15.82 | 15.81 (0.02) | |||||
| G magnitude | 17.23 (0.02) | 17.25 | 17.23 (0.003) | |||||||
| BP magnitude | 18.42 (0.02) | 18.35 | ||||||||
| RP magnitude | 16.14 (0.006) | 16.12 | ||||||||
| Pan g magnitude | 18.46 (0.005) | |||||||||
| Pan r magnitude | 17.89 (0.009) | |||||||||
| Pan i magnitude | 16.65 (0.003) | |||||||||
| Pan z magnitude | 15.95 (0.005) | |||||||||
| Pan y magnitude | 15.59 (0.004) | |||||||||
| E(B-V) | 0.023 | |||||||||
* 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.