114 Kassandra Explained

Minorplanet:yes
Background:
  1. D6D6D6
114 Kassandra
Discoverer:Christian Heinrich Friedrich Peters
Discovered:23 July 1871
Mpc Name:(114) Kassandra
Alt Names:A871 OA
Pronounced:[1]
Named After:Cassandra
Mp Category:Main belt
Epoch:31 July 2016 (JD 2457600.5)
Semimajor:2.67825AU
Perihelion:2.31581AU
Aphelion:3.0407abbr=onNaNabbr=on
Eccentricity:0.13533
Period:4.38 yr (1600.9 d)
Inclination:4.9367°
Asc Node:164.222°
Arg Peri:352.208°
Mean Anomaly:197.019°
Avg Speed:18.12 km/s
Mean Diameter:
99.798 km
Mass:(1.335 ± 0.597/0.264) kg
Density:3.051 ± 1.365/0.603 g/cm3
Surface Grav: m/s²
Escape Velocity: km/s
Rotation:10.7431abbr=onNaNabbr=on
10.758 h
Spectral Type:T (Tholen)
Abs Magnitude:8.51, 8.275
Albedo:
0.0868 ± 0.0252
Single Temperature:~170 K
Mean Motion: / day
Observation Arc:113.62 yr (41501 d)
Uncertainty:0
Moid:1.3244AU
Jupiter Moid:1.94976AU
Tisserand:3.359

114 Kassandra is a large and dark main-belt asteroid. It belongs to the rare class T. It was discovered by C. H. F. Peters on July 23, 1871, and is named after Cassandra, the prophetess in the tales of the Trojan War.

This object is classified as a rare T-type asteroid, with parts of the spectrum displaying properties similar to the mineral troilite and to carbonaceous chondrite. The shape of the spectrum also appears similar to fine grain from the Ornans meteorite, which landed in France in 1868. The light curve for this asteroid displays a period of 10.758 ± 0.004 hours with a brightness variation of 0.25 ± 0.01 in magnitude.

In 2001, 114 Kassandra was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 100 ± 14 km. This is consistent with the asteroid dimensions computed through other means.

In popular media

The 2009 miniseries Meteor featured 114 Kassandra being sent on a collision course with Earth due to a comet impact and the effort by scientists to stop it.

Notes and References

  1. 'Cassandra' in Noah Webster (1884) A Practical Dictionary of the English Language