225 Henrietta

Tags: Planet.

225 Henrietta is a very large outer main-belt asteroid. It was discovered by Johann Palisa on April 19 1882 in Vienna and named after Henrietta wife of astronomer Pierre J. C. Janssen.This is classified as a C-type asteroid and is probably composed of privitive carbonaceous material. It has very dark surface with an albedo of 0.040.

apoapsis (km)

6.41471e+11

average speed (km/s)

58320.0

orbital period (μ)

1.9629e+08

periapsis (km)

3.7046e+11

absolute magnitude

8.72

albedo

0.04

discovery date

1882-04-19

discoverer

Johann Palisa

epoch

30 January 2005 (JD 2453400.5)

former name

n/a

rotation period (s)

26481.6