All names: CNS5 5397, WDJ215140.11+591734.85, ** KPP 4252B, Gaia DR2 2202703050401536000, 2MASS J21514010+5917349, WDS J21516+5918B, J2151+5917, UCAC4 747-070768, Gaia EDR3 2202703050401536000, Gaia DR3 2202703050401536000, TIC 283414280
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 51 39.93 (0.01) | 21 51 39.93 (0.02) | 21 51 39.93 | 21 51 39.93 | 21 51 40.11 (0.01) | 21 51 39.93 | ||||||
| Declination | 59 17 34.55 (0.01) | 59 17 34.56 (0.02) | 59 17 34.56 | 59 17 34.55 | 59 17 34.85 (0.01) | 59 17 34.56 | ||||||
| Spectral type | DAH | DAH | DAH | DAH | DA: | DAH | ||||||
| Effective temperature | [K] | 5105.0 (20) | 5075.0 (7) | 5095.4 (8) | 5100.0 (10) | 5182.0 (10) | ||||||
| log(g) | [cgs] | 7.99 (0.01) | 7.97 (0.004) | 7.98 (0.006) | 7.98 (0.01) | 8.03 (0.004) | ||||||
| Mass | [M☉] | 0.572 (0.009) | 0.564 (0.003) | 0.599 (0.004) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 5.0800 | ||||||||||
| 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] | 118.16 (0.02) | 118.16 (0.02) | 118.12 (0.02) | 118.12 (0.02) | 118.12 (0.02) | 118.16 | 118.16 (0.02) | 118.12 (0.02) | |||
| Distance | [pc] | 8.46 (0.001) | 8.46 (0.001) | 8.47 (0.001) | 8.47 (0.001) | 8.47 (0.001) | 8.46 | 8.46 (0.001) | 8.47 (0.001) | |||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -86.74227009 (0.02) | -86.79871401 (0.04) | -86.742 (0.02) | -86.79871401 | |||||||
| Proper motion (declination) | [mas/yr] | -19.23666485 (0.02) | -19.18973984 (0.04) | -19.237 (0.02) | -19.18973984 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | 14.51 (0.1) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 12.97 (0.07) | 12.97 (0.07) | ||||||||||
| H magnitude | 12.80 (0.06) | 12.80 (0.06) | ||||||||||
| K magnitude | 12.65 (0.06) | 12.65 (0.06) | ||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 14.37 (0.001) | 14.39 | 14.39 | 14.37 | 14.37 (0.003) | 14.39 | ||||||
| BP magnitude | 14.81 (0.001) | 14.83 | 14.83 | |||||||||
| RP magnitude | 13.76 (0.0006) | 13.77 | 13.77 | |||||||||
| Pan g magnitude | 14.92 (0.0007) | 14.92 (0.001) | ||||||||||
| Pan r magnitude | 14.37 (0.001) | 14.37 (0.001) | ||||||||||
| Pan i magnitude | 14.16 (0.009) | 14.16 (0.009) | ||||||||||
| Pan z magnitude | 14.09 (0.004) | 14.09 (0.004) | ||||||||||
| Pan y magnitude | 13.96 (0.004) | 13.96 (0.004) | ||||||||||
| E(B-V) | 0.000 | |||||||||||
* 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.