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Trans-Neptunian object

2015 FB490

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(2015 FB490)

Where is it now

Distance from Sun
44.051 AU
True anomaly
136.15°
Distance from Earth
45.022 AU
As of
20 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.

Sun Earth — 0.996 AU from the Sun Earth 2015 FB490 — 44.051 AU from the Sun 2015 FB490
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 FB490 is 45.022 AU from Earth today (6.2 light-hours).

In the sky

Right ascension
12h 54m 12s
Declination
-05° 48′ 14″
Constellation
Virgo
Distance from Earth
45.02 AU
Elongation from the Sun
12.84° — too close to the Sun to observe

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
43.642 AU
Eccentricity
0.0131
Inclination
0.31°
Orbital period
288.3 years
Perihelion
43.069 AU
Aphelion
44.214 AU
Longitude of ascending node
194.98°
Argument of periapsis
223.31°
Epoch · J2000
2457117.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 16,377.4 LD
42.0826 AU
Tisserand (Jupiter)
5.911

Orbit quality

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

Observations used
22
Data arc
66 days
First observed
18 March 2015
Last observed
23 May 2015
Residual RMS
0.1 ″
Solution · Otto Matic
14 February 2025

Visual & observation

Absolute magnitude (H)
7.69

Discovery & classification

TNO

Sources