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Asteroid

Kalliope

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22 Kalliope (A852 WA)

Where is it now

Distance from Sun
2.634 AU
True anomaly
18.27°
Distance from Earth
2.368 AU
As of
11 October 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth Kalliope — 2.634 AU from the Sun Kalliope
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Kalliope is 2.368 AU from Earth today (19.7 light-minutes).

In the sky

Right ascension
07h 05m 09s
Declination
+26° 59′ 45″
Constellation
Gemini
Distance from Earth
2.36 AU
Elongation from the Sun
94.6° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis
2.909 AU
Eccentricity
0.0988
Inclination
13.7°
Orbital period
4.96 years
Perihelion
2.622 AU
Aphelion
3.197 AU
Longitude of ascending node
65.97°
Argument of periapsis
358.31°
Epoch · J2000
2461200.5
Orbit class · MBA
Main-belt asteroid
Earth MOID · 636.0 LD
1.6342 AU
Tisserand (Jupiter)
3.234

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
12,455
Data arc
171.8 years
First observed
14 April 1854
Last observed
19 January 2026
Residual RMS
0.27 ″
Solution · Otto Matic
5 June 2026

Physical properties

Mean radius
84 km
Density
2.37 g/cm³
Rotation period
4.15 hours
GM
0.491 km³/s²

Visual & observation

Geometric albedo
0.166
Absolute magnitude (H)
6.79
Colour index (B–V)
0.72
Spectral type (SMASS)
X
Spectral type (Tholen)
M
Colour index (U–B)
0.23

Discovery & classification

Discovered by
Hind, J. R.
Discovery date
16 November 1852
Discovery site
London

Also known as 22 · A852 WA

Main-Belt Asteroid Named

Sources