All names: WD 1102+74, Gaia DR3 1079787355542320256, WD 1102+748, USNO-B1.0 1646-00067344, GD 466, TIC 142584631, 2MASS J11055620+7436396, WDJ110556.18+743639.58, GALEX J110556.2+743638, FBS B 991, Gaia DR2 1079787355542320256, Gaia EDR3 1079787355542320256, PG 1102+749, GSC2.3 N79B005052, FBS 1102+749, UCAC3 330-33984
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 05 55.69 (0.02) | 11 05 55.71 (0.04) | 11 05 55.69 | 11 05 56.18 (0.02) | 11 05 55.71 | 11 06 01.75 | |||||
| Declination | 74 36 39.16 (0.02) | 74 36 39.17 (0.04) | 74 36 39.16 | 74 36 39.58 (0.02) | 74 36 39.17 | 74 37 05.52 | |||||
| Spectral type | DA | DA | DA2.4 | DA2.5 | |||||||
| Effective temperature | [K] | 19777.0 (268) | 20660.0 (337) | 19941.0 (212) | |||||||
| log(g) | [cgs] | 8.35 (0.09) | 8.38 (0.05) | 8.43 (0.008) | |||||||
| Mass | [M☉] | 0.827 (0.06) | 0.86 (0.03) | 0.886 (0.007) | |||||||
| 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) | <-8.50 | ||||||||||
| 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] | 19.28 (0.03) | 19.30 (0.04) | 19.28 | 19.28 (0.03) | 19.30 (0.04) | |||||
| Distance | [pc] | 51.87 (0.07) | 51.82 (0.1) | 54.00 | 51.87 | 51.88 (0.07) | 51.82 (0.1) | ||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -120.8778944 (0.03) | -120.7938471 (0.07) | -120.878 (0.03) | -120.7938471 | ||||||
| Proper motion (declination) | [mas/yr] | -26.36105808 (0.03) | -26.36288358 (0.07) | -26.361 (0.03) | -26.36288358 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.14 (0.4) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 15.23 (0.4) | ||||||||||
| I magnitude | 15.22 (0.4) | ||||||||||
| J magnitude | 15.53 (0.01) | ||||||||||
| H magnitude | 15.57 (0.02) | ||||||||||
| K magnitude | 15.75 (0.04) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.05 (0.002) | 15.07 | 15.05 | 15.05 (0.003) | 15.07 | ||||||
| BP magnitude | 14.97 (0.002) | 14.95 | 14.95 | ||||||||
| RP magnitude | 15.23 (0.002) | 15.23 | 15.23 | ||||||||
| Pan g magnitude | 14.93 (0.002) | ||||||||||
| Pan r magnitude | 15.23 (0.002) | ||||||||||
| Pan i magnitude | 15.55 (0.003) | ||||||||||
| Pan z magnitude | 15.80 (0.003) | ||||||||||
| Pan y magnitude | 15.96 (0.003) | ||||||||||
| 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.