291 Alice

Tags: Planet.

291 Alice is an asteroid belonging to the Flora family in the main belt. It was discovered by Johann Palisa on April 25 1890 at the Vienna Observatory.Photometric observations of this asteroid at the Leura Observatory in Leura Australia during 2006 gave a rotation period of 4.313 ± 0.002 hours and a brightness variation of 0.20 ± 0.02 in magnitude. This result is in agreement with previous studies.

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average speed (km/s)

71928.0

density (μ3)

2700.0

orbital period (μ)

1.04518e+08

periapsis (km)

3.01612e+11

temperature (K)

181.0, 267.0

absolute magnitude

11.45

albedo

0.208

discovery date

1890-04-25

discoverer

Johann Palisa

epoch

30 January 2005 (JD 2453400.5)

escape velocity (kmh)

32.4

rotation period (s)

15552.0