Known Belts
Belts of dust or debris have been detected around many stars, as well as the Sun, including the following:
| Star | Spectral class |
Distance (ly) |
Orbit (AU) |
Notes |
|---|---|---|---|---|
| Epsilon Eridani | K2V | 10.5 | 35–75 | |
| Tau Ceti | G8V | 11.9 | 35–50 | |
| Vega | A0V | 25 | 86–200 | |
| Fomalhaut | A3V | 25 | 133–158 | |
| AU Microscopii | M1Ve | 33 | 50–150 | |
| HD 181327 | F5.5V | 51.8 | 89-110 | |
| HD 69830 | K0V | 41 | <1 | |
| HD 207129 | G0V | 52 | 148–178 | |
| HD 139664 | F5IV–V | 57 | 60–109 | |
| Eta Corvi | F2V | 59 | 100–150 | |
| HD 53143 | K1V | 60 | ? | |
| Beta Pictoris | A6V | 63 | 25–550 | |
| Zeta Leporis | A2Vann | 70 | 2–8 | |
| HD 92945 | K1V | 72 | 45–175 | |
| HD 107146 | G2V | 88 | 130 | |
| Gamma Ophiuchi | A0V | 95 | 520 | |
| HR 8799 | A5V | 129 | 75 | |
| 51 Ophiuchi | B9 | 131 | 0.5–1200 | |
| HD 12039 | G3–5V | 137 | 5 | |
| HD 98800 | K5e (?) | 150 | 1 | |
| HD 15115 | F2V | 150 | 315–550 | |
| HR 4796 A | A0V | 220 | 200 | |
| HD 141569 | B9.5e | 320 | 400 | |
| HD 113766 A | F4V | 430 | 0.35–5.8 |
The orbital distance of the belt is an estimated mean distance or range, based either on direct measurement from imaging or derived from the temperature of the belt. The Earth has an average distance from the Sun of 1 AU.
Read more about this topic: Debris Disk
Famous quotes containing the word belts:
“Such a style,—so diversified and variegated! It is like the face of a country; it is like a New England landscape, with farmhouses and villages, and cultivated spots, and belts of forests and blueberry swamps round about, with the fragrance of shad-blossoms and violets on certain winds.”
—Henry David Thoreau (1817–1862)