Skip to content
Public Universe
Asteroid Near-Earth

481032

Add to an observing list or journal →

481032 (2004 YZ23)

Where is it now

Distance from Sun
5.569 AU
True anomaly
170.23°
Distance from Earth
4.999 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 481032 — 5.569 AU from the Sun 481032
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 481032 is 4.999 AU from Earth today (41.6 light-minutes).

In the sky

Right ascension
22h 26m 55s
Declination
+58° 21′ 38″
Constellation
Cepheus
Distance from Earth
5 AU
Elongation from the Sun
120.26° — 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
3.421 AU
Eccentricity
0.6773
Inclination
56.17°
Orbital period
6.33 years
Perihelion
1.104 AU
Aphelion
5.738 AU
Longitude of ascending node
253.03°
Argument of periapsis
300.79°
Epoch · J2000
2461200.5
Orbit class · AMO
Amor
Earth MOID · 122.8 LD
0.3155 AU
Tisserand (Jupiter)
2.185

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
1,087
Data arc
38.68 years
First observed
8 February 1986
Last observed
13 October 2024
Residual RMS
0.39 ″
Solution · Otto Matic
21 October 2025

Visual & observation

Absolute magnitude (H)
15.17

Discovery & classification

Discovered by
Siding Spring Survey
Discovery date
22 December 2004
Discovery site
Siding Spring

Also known as 2004 YZ23

Amor Near-Earth Object

Close approaches 5 on record

When (UTC) Body Distance Lunar distances Relative speed
2048-05-31 15:34:00 Juptr 1.7943 AU 698.3 LD 14.8 km/s
2125-07-17 13:03:00 Mars 0.082 AU 31.9 LD 30.3 km/s
2143-03-22 22:16:00 Juptr 1.7618 AU 685.6 LD 15.3 km/s

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

Sources