Skip to content
Public Universe
Asteroid Near-Earth

189263

Add to an observing list or journal →

189263 (2005 CA)

Where is it now

Distance from Sun
1.978 AU
True anomaly
260.45°
Distance from Earth
1.922 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 189263 — 1.978 AU from the Sun 189263
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 189263 is 1.922 AU from Earth today (16.0 light-minutes).

In the sky

Right ascension
18h 24m 32s
Declination
-06° 41′ 39″
Constellation
Scutum
Distance from Earth
1.92 AU
Elongation from the Sun
77.93° — well clear of the Sun

Visible from both hemispheres.

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
2.73 AU
Eccentricity
0.5884
Inclination
16.74°
Orbital period
4.51 years
Perihelion
1.124 AU
Aphelion
4.336 AU
Longitude of ascending node
202.06°
Argument of periapsis
203.97°
Epoch · J2000
2461200.5
Orbit class · AMO
Amor
Earth MOID · 58.6 LD
0.1505 AU
Tisserand (Jupiter)
3.028

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
677
Data arc
47.36 years
First observed
6 January 1978
Last observed
19 May 2025
Residual RMS
0.54 ″
Solution · Otto Matic
20 May 2025

Visual & observation

Absolute magnitude (H)
15.74

Discovery & classification

Discovered by
LINEAR
Discovery date
1 February 2005
Discovery site
Socorro

Also known as 2005 CA

Amor Near-Earth Object

Close approaches 10 on record

Flyby geometry
Ecliptic flyby of 189263 at 2107-10-31 05:29 UTC Top-down view of the ecliptic, Earth at the centre, for the 2107-10-31 05:29 UTC close approach of 189263. Catalogue miss distance 56.1 LD · 2.16 × 10⁷ km. The curve is the geocentric path from 2107-10-28 to 2107-11-03, 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. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 56.1 LD · 2.16 × 10⁷ km 2107-10-31 05:29 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2107-10-31 05:29 UTC close approach of 189263. Catalogue miss distance 56.1 LD · 2.16 × 10⁷ km. The curve is the geocentric path from 2107-10-28 to 2107-11-03, 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. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2029-07-22 11:36:00 Juptr 1.9645 AU 764.5 LD 6.1 km/s
2065-05-15 22:00:00 Juptr 1.4204 AU 552.8 LD 4.8 km/s
2101-02-03 13:58:00 Juptr 1.2286 AU 478.1 LD 4.6 km/s
2107-10-31 05:29:00 Earth 0.1441 AU 56.1 LD 10.8 km/s
2136-10-02 01:19:00 Juptr 1.1946 AU 464.9 LD 4.6 km/s
2172-05-12 08:46:00 Juptr 1.1945 AU 464.9 LD 4.6 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources