All names: WD 2234+52, Gaia EDR3 2002232359484482304, LSPM J2236+5303, USNO-B1.0 1430-00512162, Gaia DR2 2002232359484482304, WDJ223636.84+530311.06, Gaia DR3 2002232359484482304, WD 2234+527, J2236+5303, G 233-19, NLTT 54356, EGGR 379
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 36 36.47 (0.05) | 22 36 36.48 (0.06) | 22 36 36.47 | 22 36 36.84 (0.05) | 22 36 36.48 | 22 36 37.94 | ||||
| Declination | 53 03 09.16 (0.05) | 53 03 09.22 (0.06) | 53 03 09.16 | 53 03 11.07 (0.05) | 53 03 09.22 | 53 03 10.80 | ||||
| Spectral type | DC | DC | DC5 | DC5 | ||||||
| Effective temperature | [K] | 10998.0 (80) | 9628.0 (104) | |||||||
| log(g) | [cgs] | 8.11 (0.01) | 7.87 (0.02) | |||||||
| Mass | [M☉] | 0.647 (0.01) | 0.507 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.5900 | ||||||||
| log(H/He) | -5.0 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | ||||||||||
| log(Mg/He) | ||||||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | ||||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | ||||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | ||||||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | ||||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 12.54 (0.06) | 12.13 (0.08) | 12.13 (0.08) | 12.54 | 12.54 (0.06) | 12.13 (0.08) | |||
| Distance | [pc] | 79.71 (0.4) | 82.44 (0.5) | 82.45 (0.5) | 79.71 | 79.71 (0.4) | 82.45 (0.5) | |||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -211.6617251 (0.06) | -210.8249583 (0.1) | -211.662 (0.06) | -210.8249583 | |||||
| Proper motion (declination) | [mas/yr] | -119.6802935 (0.06) | -119.1529477 (0.1) | -119.68 (0.06) | -119.1529477 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.60 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 16.50 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.81 (0.01) | |||||||||
| H magnitude | 16.79 (0.02) | |||||||||
| K magnitude | 17.45 (0.08) | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.78 (0.003) | 16.80 | 16.78 | 16.78 (0.003) | 16.80 | |||||
| BP magnitude | 16.80 (0.003) | 16.79 | 16.79 | |||||||
| RP magnitude | 16.68 (0.006) | 16.68 | 16.68 | |||||||
| Pan g magnitude | 16.79 (0.002) | 16.79 (0.003) | ||||||||
| Pan r magnitude | 16.89 (0.004) | 16.89 (0.004) | ||||||||
| Pan i magnitude | 17.06 (0.003) | 17.06 (0.003) | ||||||||
| Pan z magnitude | 17.21 (0.004) | 17.21 (0.004) | ||||||||
| Pan y magnitude | 17.31 (0.008) | 17.31 (0.008) | ||||||||
| E(B-V) | 0.012 | |||||||||
* 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.