All names: Gaia DR2 4465105351622152704, TIC 157153132, 2MASS J16170875+1554384, SDSS J161708.73+155438.8, PG 1614+160, J1617+1554, SDSS J161708.73+155438.7, WDJ161708.75+155438.50, WD 1614+160, WIRED J161708.73+155438.7, GALEX J161708.6+155438, Gaia EDR3 4465105351622152704, USNO-B1.0 1059-00258237, Gaia DR3 4465105351622152704
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 17 08.70 (0.03) | 16 17 08.73 | 16 17 08.70 (0.03) | 16 17 08.70 | 16 17 08.75 (0.03) | 16 17 08.70 | 16 17 07.58 | 16 17 08.73 | ||||||||||
| Declination | 15 54 39.20 (0.03) | 15 54 38.75 | 15 54 39.18 (0.03) | 15 54 39.20 | 15 54 38.50 (0.03) | 15 54 39.18 | 15 54 46.80 | 15 54 38.72 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA2.8 | DA | DA | DA | DA | |||||||
| Effective temperature | [K] | 18032.0 (224) | 18034.0 (224) | 16926.0 | 18020.0 (286) | 17961.0 (25) | 17400.0 | 17572.0 (241) | 18182.0 (66) | |||||||||
| log(g) | [cgs] | 7.98 (0.01) | 7.97 (0.01) | 7.90 | 8.03 (0.05) | 7.82 (0.005) | 7.80 | 7.95 (0.01) | 7.90 (0.01) | |||||||||
| Mass | [M☉] | 0.606 (0.008) | 0.601 (0.008) | 0.561 | 0.64 (0.03) | 0.589 (0.01) | 0.569 (0.005) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||
| Cooling age | [Gyr] | 0.1093 | ||||||||||||||||
| log(H/He) | ||||||||||||||||||
| log(C/He) | ||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||
| log(Ca/H) | -7.2 | |||||||||||||||||
| 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] | 12.09 (0.04) | 12.02 (0.06) | 12.09 | 12.09 (0.04) | 12.02 (0.06) | ||||||||||||
| Distance | [pc] | 82.73 (0.3) | 83.23 (0.4) | 104.00 | 82.73 | 82.73 (0.3) | 83.23 (0.4) | |||||||||||
| Composition | H | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -38.29598355 (0.04) | -38.28228914 (0.07) | -38.296 (0.04) | -38.282 | |||||||||||||
| Proper motion (declination) | [mas/yr] | 44.24977999 (0.04) | 44.1103432 (0.06) | 44.25 (0.04) | 44.11 | |||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 16.08 | 16.08 | ||||||||||||||||
| V magnitude | ||||||||||||||||||
| R magnitude | 15.70 | |||||||||||||||||
| I magnitude | ||||||||||||||||||
| J magnitude | 15.92 (0.08) | |||||||||||||||||
| H magnitude | 16.04 (0.2) | |||||||||||||||||
| K magnitude | 16.17 (0.1) | |||||||||||||||||
| u magnitude | 15.48 (0.004) | 15.48 (0.004) | 15.50 (0.005) | 15.50 (0.02) | ||||||||||||||
| g magnitude | 15.33 (0.003) | 15.33 (0.003) | 15.35 (0.003) | 15.35 (0.02) | ||||||||||||||
| r magnitude | 15.71 (0.004) | 15.71 (0.004) | 15.70 (0.003) | 15.71 (0.01) | ||||||||||||||
| i magnitude | 15.97 (0.004) | 15.97 (0.004) | 15.97 (0.004) | 15.97 (0.01) | ||||||||||||||
| z magnitude | 16.28 (0.008) | 16.28 (0.008) | 16.25 (0.008) | 16.28 (0.02) | ||||||||||||||
| G magnitude | 15.54 (0.002) | 15.56 | 15.54 | 15.54 (0.003) | 15.56 | |||||||||||||
| BP magnitude | 15.48 (0.002) | 15.45 | 15.45 | |||||||||||||||
| RP magnitude | 15.69 (0.003) | 15.69 | 15.69 | |||||||||||||||
| Pan g magnitude | 15.40 (0.005) | |||||||||||||||||
| Pan r magnitude | 15.71 (0.002) | |||||||||||||||||
| Pan i magnitude | 16.01 (0.003) | |||||||||||||||||
| Pan z magnitude | 16.25 (0.002) | |||||||||||||||||
| Pan y magnitude | 16.43 (0.006) | |||||||||||||||||
| E(B-V) | 0.009 | |||||||||||||||||
* 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.