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Comet

Lemmon

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C/2022 T1 (Lemmon)

Lemmon is a comet in the Jupiter-family comet (P < 20 y) orbit class. Its orbit takes it from 3.44 AU to 24,034.46 AU from the Sun; one orbit takes 1,317,674.6 years. Orbit from the JPL solution of 22 July 2024.

Where is it now

Distance from Sun
8.706 AU
True anomaly
102.05°
Distance from Earth
8.775 AU
As of
25 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 Lemmon — 8.706 AU from the Sun Lemmon
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Lemmon is 8.775 AU from Earth today (1.2 light-hours).

In the sky

Right ascension
19h 32m 10s
Declination
-01° 07′ 00″
Constellation
Aquila
Distance from Earth
8.79 AU
Elongation from the Sun
82.13° — 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
12,018.953 AU
Eccentricity
0.9997
Inclination
22.54°
Orbital period
1,317,674.6 years
Perihelion
3.445 AU
Aphelion
24,034.462 AU
Longitude of ascending node
236.92°
Argument of periapsis
324.32°
Epoch · J2000
2460227.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 962.4 LD
2.473 AU
Tisserand (Jupiter)
2.126

Orbit quality

Observations used
587
Data arc
647 days
First observed
3 October 2022
Last observed
11 July 2024
Residual RMS
0.52 ″
Solution · Otto Matic
22 July 2024

Visual & observation

Absolute magnitude (H)
13.1
Total magnitude M₁ · K₁ 4.5
13.1

Discovery & classification

Also known as 2022 T1

Named

Sources