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Comet

Lemmon-PANSTARRS

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445P/Lemmon-PANSTARRS

Where is it now

Distance from Sun
5.73 AU
True anomaly
181.77°
Distance from Earth
6.446 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 Lemmon-PANSTARRS — 5.73 AU from the Sun Lemmon-PANSTARRS
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Lemmon-PANSTARRS is 6.446 AU from Earth today (53.6 light-minutes).

In the sky

Right ascension
11h 19m 07s
Declination
+05° 00′ 38″
Constellation
Leo
Distance from Earth
6.44 AU
Elongation from the Sun
41.24° — 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
4.058 AU
Eccentricity
0.4125
Inclination
1.09°
Orbital period
8.17 years
Perihelion
2.384 AU
Aphelion
5.731 AU
Longitude of ascending node
126.55°
Argument of periapsis
213.73°
Epoch · J2000
2458476.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 535.6 LD
1.3763 AU
Tisserand (Jupiter)
2.891

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
308
Data arc
24.08 years
First observed
22 November 1998
Last observed
20 December 2022
Residual RMS
0.55 ″
Solution · Otto Matic
9 September 2025

Visual & observation

Absolute magnitude (H)
15.6
Total magnitude M₁ · K₁ 6.5
15.6

Discovery & classification

Also known as 445P · 445P/1998 W9 · 445P/2006 S14 · 445P/2014 R5 · 445P/2022 L5

Named

Close approaches 7 on record

When (UTC) Body Distance Lunar distances Relative speed
2028-05-27 21:20:00 Juptr 1.8323 AU 713.1 LD 8.6 km/s
2052-03-22 12:22:00 Juptr 1.1935 AU 464.5 LD 7 km/s
2110-03-16 18:21:00 Juptr 1.7561 AU 683.4 LD 8.4 km/s
2133-09-28 09:36:00 Juptr 1.0701 AU 416.4 LD 6.5 km/s
2194-10-06 01:01:00 Juptr 1.144 AU 445.2 LD 6.8 km/s

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

Sources