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Public Universe
Centaur

2015 AD25

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(2015 AD25)

Where is it now

Distance from Sun
6.048 AU
True anomaly
225.67°
Distance from Earth
5.304 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 2015 AD25 — 6.048 AU from the Sun 2015 AD25
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 AD25 is 5.304 AU from Earth today (44.1 light-minutes).

In the sky

Right ascension
22h 15m 53s
Declination
-07° 21′ 12″
Constellation
Aquarius
Distance from Earth
5.31 AU
Elongation from the Sun
133.94° — 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
5.743 AU
Eccentricity
0.6547
Inclination
13.21°
Orbital period
13.76 years
Perihelion
1.983 AU
Aphelion
9.503 AU
Longitude of ascending node
172.07°
Argument of periapsis
301.93°
Epoch · J2000
2459400.5
Orbit class · CEN
Centaur
Tisserand (Jupiter)
2.452

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used
10
Data arc
3 days
First observed
12 January 2015
Last observed
15 January 2015
Residual RMS
0.16 ″

Visual & observation

Absolute magnitude (H)
19.08

Discovery & classification

Centaur

Sources