2005 CN is an asteroid in the Apollo orbit class. Its orbit takes it from 0.83 AU to 1.2 AU from the Sun; one orbit takes 373.8 days. Orbit from the JPL solution of 1 March 2023.
Where is it now
- Distance from Sun
- 0.866 AU
- True anomaly
- 315.6°
- Distance from Earth
- 1.857 AU
- As of
- 3 November 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.
In the sky
- Right ascension
- 14h 43m 39s
- Declination
- -16° 57′ 55″
- Constellation
- Libra
- Distance from Earth
- 1.86 AU
- Elongation from the Sun
- 2.23° — too close to the Sun to observe
Favours the southern hemisphere; low or below the horizon from far north.
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.
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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
- 1.016 AU
- Eccentricity
- 0.1849
- Inclination
- 2.3°
- Orbital period
- 373.8 days
- Perihelion
- 0.828 AU
- Aphelion
- 1.203 AU
- Longitude of ascending node
- 308.1°
- Argument of periapsis
- 321.7°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 11.4 LD
- 0.0292 AU
- Tisserand (Jupiter)
- 5.991
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 73
- Data arc
- 5.68 years
- First observed
- 2 February 2005
- Last observed
- 10 October 2010
- Residual RMS
- 0.7 ″
- Solution · Otto Matic
- 1 March 2023
Visual & observation
- Absolute magnitude (H)
- 23.13
Discovery & classification
Close approaches 107 on record
Top-down view of the ecliptic, Earth at the centre, for the 2045-02-28 02:46 UTC close approach of 2005 CN. Catalogue miss distance 150.9 LD · 5.8 × 10⁷ km. The curve is the geocentric path from 2045-02-25 to 2045-03-03, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2045-02-28 02:46:00 | Earth | 0.3877 AU | 150.9 LD | 17.7 km/s |
| 2046-03-06 10:52:00 | Earth | 0.2424 AU | 94.3 LD | 13.3 km/s |
| 2047-03-12 10:55:00 | Earth | 0.0984 AU | 38.3 LD | 8.9 km/s |
| 2048-03-15 19:34:00 | Earth | 0.0566 AU | 22.0 LD | 4.7 km/s |
| 2049-02-05 06:56:00 | Earth | 0.1668 AU | 64.9 LD | 4.7 km/s |
| 2049-05-11 13:50:00 | Earth | 0.1627 AU | 63.3 LD | 5.2 km/s |
| 2050-01-08 05:59:00 | Earth | 0.2126 AU | 82.7 LD | 5.7 km/s |
| 2050-06-17 05:48:00 | Earth | 0.1893 AU | 73.7 LD | 6.4 km/s |
| 2050-12-15 06:06:00 | Earth | 0.2203 AU | 85.7 LD | 5.8 km/s |
| 2051-07-21 15:30:00 | Earth | 0.1747 AU | 68.0 LD | 5.9 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB