Debris Disk - Known Belts

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.

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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)