All names: Gaia DR3 1120102942239867264, PG 0933+729, WISEA J093821.50+724218.6, WDJ093821.64+724219.01, UCAC4 814-017329, FBS B 877, Gaia EDR3 1120102942239867264, WD 0933+729, Gaia DR2 1120102942239867264, WISE J093821.51+724218.6, FBS 0933+729
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 38 21.44 (0.02) | 09 38 21.45 (0.03) | 09 38 21.44 | 09 38 21.64 (0.02) | 09 38 21.45 | 09 38 20.69 | |||||
| Declination | 72 42 18.16 (0.03) | 72 42 18.19 (0.05) | 72 42 18.16 | 72 42 19.01 (0.03) | 72 42 18.19 | 72 42 11.52 | |||||
| Spectral type | DA | DA | DA2.8 | DA3 | |||||||
| Effective temperature | [K] | 18120.0 (277) | 17380.0 (267) | 17144.0 (177) | |||||||
| log(g) | [cgs] | 8.09 (0.05) | 8.00 (0.05) | 8.05 (0.009) | |||||||
| Mass | [M☉] | 0.67 (0.03) | 0.62 (0.03) | 0.647 (0.008) | |||||||
| log(Luminosity) | [L☉] | -1.85 | |||||||||
| Cooling age | [Gyr] | 0.1479 | |||||||||
| 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] | 12.32 (0.03) | 12.33 (0.05) | 12.32 | 12.32 (0.03) | 12.33 (0.05) | |||||
| Distance | [pc] | 81.18 (0.2) | 81.13 (0.3) | 84.00 | 88.00 | 81.18 | 81.18 (0.2) | 81.13 (0.3) | |||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -55.08564568 (0.03) | -55.12842581 (0.06) | -55.086 (0.03) | -55.12842581 | ||||||
| Proper motion (declination) | [mas/yr] | -53.08686983 (0.03) | -52.87947004 (0.08) | -53.087 (0.03) | -52.87947004 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.67 (0.01) | ||||||||||
| V magnitude | 15.71 | 15.68 (0.04) | |||||||||
| R magnitude | 15.92 (0.1) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.11 (0.1) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | 16.03 (0.3) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | 15.56 (0.02) | ||||||||||
| r magnitude | 15.91 (0.1) | ||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.69 (0.003) | 15.71 | 15.69 | 15.69 (0.003) | 15.71 | ||||||
| BP magnitude | 15.63 (0.003) | 15.62 | 15.62 | ||||||||
| RP magnitude | 15.84 (0.003) | 15.84 | 15.84 | ||||||||
| Pan g magnitude | 15.57 (0.007) | ||||||||||
| Pan r magnitude | 15.87 (0.003) | ||||||||||
| Pan i magnitude | 16.16 (0.002) | ||||||||||
| Pan z magnitude | 16.41 (0.005) | ||||||||||
| Pan y magnitude | 16.57 (0.008) | ||||||||||
| E(B-V) | 0.004 | ||||||||||
* 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.