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Comet

LINEAR-Lemmon

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471P/LINEAR-Lemmon

Where is it now

Distance from Sun
6.871 AU
True anomaly
142.34°
Distance from Earth
7.562 AU
As of
22 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 — 0.995 AU from the Sun Earth LINEAR-Lemmon — 6.871 AU from the Sun LINEAR-Lemmon
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. LINEAR-Lemmon is 7.562 AU from Earth today (1.0 light-hours).

In the sky

Right ascension
11h 04m 05s
Declination
+02° 00′ 07″
Constellation
Leo
Distance from Earth
7.55 AU
Elongation from the Sun
43.97° — near the Sun — look low at dusk or dawn

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
5.704 AU
Eccentricity
0.6278
Inclination
4.79°
Orbital period
13.62 years
Perihelion
2.123 AU
Aphelion
9.285 AU
Longitude of ascending node
283.35°
Argument of periapsis
94.96°
Epoch · J2000
2460149.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 440.3 LD
1.1315 AU
Tisserand (Jupiter)
2.536

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
911
Data arc
28.68 years
First observed
23 June 1996
Last observed
27 February 2025
Residual RMS
0.47 ″
Solution · Otto Matic
28 February 2025

Visual & observation

Absolute magnitude (H)
10
Total magnitude M₁ · K₁ 16.8
10

Discovery & classification

Also known as 471P · 471P/2010 YK3 · 471P/2023 KF3

Named

Close approaches 8 on record

When (UTC) Body Distance Lunar distances Relative speed
2039-02-14 17:51:00 Juptr 0.6354 AU 247.3 LD 9.6 km/s
2078-04-19 08:02:00 Juptr 1.6932 AU 659.0 LD 12.4 km/s
2098-12-12 22:27:00 Satrn 1.3436 AU 522.9 LD 4.4 km/s
2110-02-28 07:42:00 Jupiter 0.4426 AU 172.3 LD 8.7 km/s
2110-02-28 07:42:00 Juptr 0.4426 AU 172.3 LD 8.7 km/s
2128-05-14 08:51:00 Satrn 1.2384 AU 482.0 LD 4.8 km/s

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

Sources