All names: PM J23056+4334, 23056+4334, PSO J346.4121+43.5669, TIC 455796009, Gaia DR3 1931870929622075008, Gaia EDR3 1931870929622075008, USNO-B1.0 1335-00483914, 2MASS J23053906+4334038, LSPM J2305+4334, Gaia DR2 1931870929622075008, WDJ230539.06+433404.12, J2305+4334
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Blouin et al. 2019 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 05 38.87 (0.08) | 23 05 38.88 (0.1) | 23 05 38.87 | 23 05 39.06 (0.08) | 23 05 38.88 | ||||||
| Declination | 43 34 00.04 (0.07) | 43 34 00.17 (0.1) | 43 34 00.04 | 43 34 04.12 (0.07) | 43 34 00.17 | ||||||
| Spectral type | DC | DC | DC | DC: | DA | ||||||
| Effective temperature | [K] | 4797.0 (17) | 4770.0 (20) | 4220.0 (1039) | 4804.0 (36) | ||||||
| log(g) | [cgs] | 7.78 (0.01) | 7.76 (0.02) | 8.00 (0) | 7.79 (0.02) | ||||||
| Mass | [M☉] | 0.454 (0.009) | 0.445 (0.01) | 0.58 (0.1) | 0.461 (0.02) | ||||||
| log(Luminosity) | [L☉] | -4.35 | |||||||||
| Cooling age | [Gyr] | 4.2800 | 4.0810 (0.2) | ||||||||
| 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] | 21.32 (0.1) | 21.20 (0.1) | 21.20 (0.1) | 21.20 (0.1) | 21.32 | 21.32 (0.1) | 21.20 (0.1) | |||
| Distance | [pc] | 46.90 (0.3) | 47.17 (0.3) | 47.16 (0.3) | 47.16 (0.3) | 35.70 (39) | 46.90 | 46.90 (0.3) | 47.16 (0.3) | ||
| Composition | H | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -127.3865502 (0.09) | -127.1217834 (0.2) | -127.387 (0.09) | -127.1217834 | ||||||
| Proper motion (declination) | [mas/yr] | -254.7069978 (0.09) | -254.7615266 (0.2) | -254.707 (0.09) | -254.7615266 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 19.40 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.10 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.83 (0.02) | 16.77 (0.2) | 16.76 | 16.77 (0.2) | |||||||
| H magnitude | 16.04 (0.03) | 16.04 | |||||||||
| K magnitude | 16.47 (0.03) | 16.47 | |||||||||
| u magnitude | |||||||||||
| g magnitude | 18.81 (0.006) | ||||||||||
| r magnitude | 18.11 (0.007) | ||||||||||
| i magnitude | 17.83 (0.003) | ||||||||||
| z magnitude | 17.74 (0.005) | ||||||||||
| G magnitude | 18.16 (0.01) | 18.18 | 18.16 | 18.16 (0.003) | 18.18 | ||||||
| BP magnitude | 18.69 (0.01) | 18.70 | 18.70 | ||||||||
| RP magnitude | 17.50 (0.008) | 17.50 | 17.50 | ||||||||
| Pan g magnitude | 18.81 (0.006) | 18.81 (0.006) | 18.81 (0.006) | ||||||||
| Pan r magnitude | 18.11 (0.009) | 18.11 (0.007) | 18.11 (0.007) | ||||||||
| Pan i magnitude | 17.83 (0.004) | 17.83 (0.003) | 17.83 (0.003) | ||||||||
| Pan z magnitude | 17.74 (0.005) | 17.74 (0.005) | 17.74 (0.005) | ||||||||
| Pan y magnitude | 17.67 (0.008) | 17.67 (0.007) | 17.67 (0.007) | ||||||||
| E(B-V) | 0.004 | ||||||||||
* 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.