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Comet Near-Earth

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C/2010 L5 (WISE)

Where is it now

Distance from Sun
14.127 AU
True anomaly
188.89°
Distance from Earth
14.814 AU
As of
24 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 — 0.994 AU from the Sun Earth WISE — 14.127 AU from the Sun WISE
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. WISE is 14.814 AU from Earth today (2.1 light-hours).

In the sky

Right ascension
12h 00m 48s
Declination
+22° 53′ 18″
Constellation
Coma Berenices
Distance from Earth
14.81 AU
Elongation from the Sun
45.18° — near the Sun — look low at dusk or dawn

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
8.26 AU
Eccentricity
0.9042
Inclination
147.05°
Orbital period
23.74 years
Perihelion
0.791 AU
Aphelion
15.728 AU
Longitude of ascending node
206.47°
Argument of periapsis
214.76°
Epoch · J2000
2455379.5
Orbit class · HTC
Halley-type comet
Earth MOID · 44.0 LD
0.1132 AU
Tisserand (Jupiter)
-0.273

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
34
Data arc
31 days
First observed
14 June 2010
Last observed
15 July 2010
Residual RMS
0.91 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
18.9
Total magnitude M₁ · K₁ 4.5
18.9

Discovery & classification

Also known as 2010 L5

Near-Earth Object Named

Sources