All names: Gaia DR2 4444590625015876864, USNO-B1.0 1003-00270524, SDSS J170246.29+102242.5, PM J17027+1022, PSO J255.6930+10.3790, SDSS J170246.30+102242.5, WDJ170246.27+102241.24, NLTT 44063, Gaia EDR3 4444590625015876864, LSPM J1702+1022, LP 506-44, 17027+1022, TIC 291679719, 2MASS J17024629+1022413, J1702+1022, Gaia DR3 4444590625015876864
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 02 46.34 (0.07) | 17 02 46.34 (0.1) | 17 02 46.34 (0.1) | 17 02 46.34 | 17 02 46.27 (0.07) | 17 02 46.34 | ||||||||||
| Declination | 10 22 45.03 (0.06) | 10 22 44.91 (0.09) | 10 22 44.91 (0.09) | 10 22 45.03 | 10 22 41.24 (0.06) | 10 22 44.91 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DC: | DA | ||||||
| Effective temperature | [K] | 5169.0 (22) | 5147.0 (79) | 5162.0 (21) | 5169.0 (23) | 5083.4 (59) | 5145.0 (35) | 5172.0 | 5080.0 (57) | 5194.0 (40) | ||||||
| log(g) | [cgs] | 8.42 (0.009) | 8.40 (0.05) | 8.42 (0.009) | 8.42 (0.009) | 8.37 (0.04) | 8.41 (0.02) | 8.42 | 8.00 (0) | 8.43 (0.02) | ||||||
| Mass | [M☉] | 0.859 (0.008) | 0.846 (0.03) | 0.856 (0.008) | 0.856 (0.008) | 0.849 (0.01) | 0.857 | 0.58 (0.1) | 0.861 (0.01) | |||||||
| log(Luminosity) | [L☉] | -4.02 | ||||||||||||||
| Cooling age | [Gyr] | 8.8600 | 8.1740 (0.1) | 8.1050 | ||||||||||||
| 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] | 34.11 (0.1) | 34.11 (0.1) | 34.01 (0.1) | 34.01 (0.1) | 34.01 (0.1) | 34.01 (0.1) | 34.11 | 34.11 (0.1) | 34.01 (0.1) | ||||||
| Distance | [pc] | 29.32 (0.09) | 29.32 (0.09) | 29.40 (0.1) | 29.40 (0.1) | 29.40 (0.1) | 29.40 (0.1) | 37.30 (4) | 29.32 | 29.32 (0.09) | 29.40 (0.1) | |||||
| Composition | H | H | H | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 59.95318155 (0.09) | 59.85576765 (0.2) | 59.953 (0.09) | 59.85576765 | |||||||||||
| Proper motion (declination) | [mas/yr] | 237.0487178 (0.09) | 236.9719007 (0.2) | 237.049 (0.09) | 236.9719007 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 18.40 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 17.30 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.45 (0.01) | 16.41 (0.1) | 16.41 | 16.41 (0.1) | ||||||||||||
| H magnitude | 16.05 (0.2) | 16.05 (0.2) | 16.05 | 16.05 (0.2) | ||||||||||||
| K magnitude | 17.04 (0.03) | 17.04 | ||||||||||||||
| u magnitude | 19.81 (0.04) | 19.81 | 19.81 (0.04) | 19.81 (0.04) | ||||||||||||
| g magnitude | 18.27 | 18.19 (0.008) | 18.27 (0.007) | |||||||||||||
| r magnitude | 17.61 | 17.63 (0.005) | 17.61 (0.006) | |||||||||||||
| i magnitude | 17.38 | 17.40 (0.003) | 17.39 (0.006) | |||||||||||||
| z magnitude | 17.26 | 17.33 (0.007) | 17.26 (0.01) | |||||||||||||
| G magnitude | 17.66 (0.01) | 17.67 | 17.67 | 17.66 | 17.66 (0.003) | 17.67 | ||||||||||
| BP magnitude | 18.10 (0.01) | 18.12 | 18.12 | |||||||||||||
| RP magnitude | 17.05 (0.01) | 17.05 | 17.05 | |||||||||||||
| Pan g magnitude | 18.19 (0.007) | 18.19 (0.008) | 18.19 (0.008) | |||||||||||||
| Pan r magnitude | 17.63 (0.006) | 17.63 (0.005) | 17.63 (0.005) | |||||||||||||
| Pan i magnitude | 17.40 (0.003) | 17.40 (0.003) | 17.40 (0.003) | |||||||||||||
| Pan z magnitude | 17.33 (0.006) | 17.33 (0.007) | 17.33 (0.007) | |||||||||||||
| Pan y magnitude | 17.31 (0.009) | 17.31 (0.01) | 17.30 (0.01) | |||||||||||||
| E(B-V) | 0.001 | |||||||||||||||
* 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.