All names: FBS 1738+669, UCAC4 785-026967, TK 2, TIC 233197921, RE J173812+665347, 2MASS J17380253+6653477, RX J1738.0+6653, PN G096.9+32.0, GSC2 N112100168, WISEA J173802.58+665347.5, FBS B 852, RE J1738+665, Gaia DR3 1634314740658456320, RE J1738+66, 2RE J173758+665346, SDSS J173802.54+665347.5, Gaia EDR3 1634314740658456320, WD 1738+669, 2RE J1737+665, PN G096.8+31.9, RE J1738+669, 1RXS J173801.4+665337, Gaia DR2 1634314740658456320, WISE J173802.57+665347.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 38 02.59 (0.03) | 17 38 02.59 (0.04) | 17 38 02.59 | 17 38 02.54 (0.03) | 17 38 11.81 | ||||
| Declination | 66 53 47.34 (0.03) | 66 53 47.35 (0.05) | 66 53 47.34 | 66 53 47.60 (0.03) | 66 53 43.08 | ||||
| Spectral type | DA | DO | DA.6 | DA1 | |||||
| Effective temperature | [K] | 79320.0 (2183) | 134844.0 (15614) | ||||||
| log(g) | [cgs] | 8.04 (0.08) | 8.29 (0.09) | ||||||
| Mass | [M☉] | 0.77 (0.04) | 0.893 (0.06) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| 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] | 5.82 (0.03) | 5.77 (0.05) | 5.82 | 5.82 (0.03) | ||||
| Distance | [pc] | 171.77 (0.9) | 173.23 (1) | 147.00 | 171.77 | 171.77 (0.9) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 17.32326719 (0.04) | 17.21238988 (0.09) | 17.323 (0.04) | |||||
| Proper motion (declination) | [mas/yr] | -16.41539341 (0.04) | -16.50620021 (0.1) | -16.415 (0.04) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 14.21 (0.2) | ||||||||
| V magnitude | 14.53 (0.07) | ||||||||
| R magnitude | 14.89 (0.1) | ||||||||
| I magnitude | |||||||||
| J magnitude | 15.30 (0.05) | ||||||||
| H magnitude | 15.60 (0.1) | ||||||||
| K magnitude | 15.45 (0.2) | ||||||||
| u magnitude | 13.80 | ||||||||
| g magnitude | 14.27 (0.2) | 14.25 | |||||||
| r magnitude | 14.77 (0.04) | 14.81 | |||||||
| i magnitude | 15.01 (0.1) | 15.20 | |||||||
| z magnitude | 15.55 | ||||||||
| G magnitude | 14.54 (0.001) | 14.56 | 14.54 | 14.54 (0.003) | |||||
| BP magnitude | 14.36 (0.001) | 14.28 | |||||||
| RP magnitude | 14.89 (0.001) | 14.89 | |||||||
| Pan g magnitude | 14.37 (0.001) | ||||||||
| Pan r magnitude | 14.84 (0.002) | ||||||||
| Pan i magnitude | 15.23 (0.002) | ||||||||
| Pan z magnitude | 15.51 (0.0009) | ||||||||
| Pan y magnitude | 15.73 (0.009) | ||||||||
| E(B-V) | 0.016 | ||||||||
* 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.