All names: ** ACG 1B, BD+76 614B, CCDM J16342+7559B, GJ 9570 B, J1634+7558, SDSS J163411.59+755858.2, Gaia DR3 1703379704562897280, Gaia DR2 1703379704562897280, WDS J16342+7559B, UCAC4 830-015942, Gaia EDR3 1703379704562897280, WDJ163411.51+755857.55, GJ 632.2 B, SDSS J163411.60+755858.2, CSI+76 614 2, WDJ163411.51+755857.56
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 34 11.97 (0.02) | 16 34 11.95 (0.03) | 16 34 11.95 | 16 34 11.97 | 16 34 11.51 (0.02) | 16 34 11.95 | ||||||
| Declination | 75 58 59.93 (0.02) | 75 58 59.85 (0.03) | 75 58 59.85 | 75 58 59.93 | 75 58 57.56 (0.02) | 75 58 59.85 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 12816.0 (1092) | 8063.0 (25) | 9915.0 (30) | 12737.1 (880) | 13454.0 (198) | ||||||
| log(g) | [cgs] | 8.01 (0.08) | 7.18 (0.006) | 7.63 (0.005) | 8.02 (0.06) | 8.02 (0.01) | ||||||
| Mass | [M☉] | 0.611 (0.05) | 0.245 (0.002) | 0.411 (0.004) | 0.618 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.4100 | ||||||||||
| 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] | 29.86 (0.02) | 29.86 (0.02) | 29.87 (0.03) | 29.87 (0.03) | 29.87 (0.03) | 29.86 | 29.86 (0.02) | 29.87 (0.03) | |||
| Distance | [pc] | 33.49 (0.02) | 33.49 (0.02) | 33.48 (0.03) | 33.48 (0.04) | 33.48 (0.04) | 33.49 | 33.49 (0.02) | 33.48 (0.04) | |||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 103.4498291 (0.02) | 103.4253812 (0.05) | 103.45 (0.02) | 103.4253812 | |||||||
| Proper motion (declination) | [mas/yr] | 148.0446369 (0.02) | 148.0374465 (0.07) | 148.045 (0.02) | 148.0374465 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | 13.83 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 15.20 (0.03) | 15.20 (0.005) | 15.20 (0.005) | |||||||||
| g magnitude | 14.35 (0.003) | 14.35 (0.003) | ||||||||||
| r magnitude | 14.23 (0.003) | 14.23 (0.003) | ||||||||||
| i magnitude | 14.31 (0.003) | 14.31 (0.003) | ||||||||||
| z magnitude | 19.61 (0.2) | 19.61 (0.2) | ||||||||||
| G magnitude | 14.24 (0.01) | 14.25 | 14.25 | 14.24 | 14.24 (0.003) | 14.25 | ||||||
| BP magnitude | 14.18 (0.01) | 14.18 | 14.18 | |||||||||
| RP magnitude | 14.14 (0.02) | 14.22 | 14.22 | |||||||||
| Pan g magnitude | 14.07 (0.001) | 14.07 (0.001) | ||||||||||
| Pan r magnitude | 14.55 (0.002) | 14.55 (0.002) | ||||||||||
| Pan i magnitude | 14.68 (0.002) | 14.68 (0.002) | ||||||||||
| Pan z magnitude | 0.00 (0) | |||||||||||
| Pan y magnitude | 14.56 (0.004) | 14.56 (0.004) | ||||||||||
| E(B-V) | 0.003 | |||||||||||
* 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.