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Comet

Korlevic

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203P/Korlevic

Where is it now

Distance from Sun
5.68 AU
True anomaly
213.84°
Distance from Earth
5.771 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 Korlevic — 5.68 AU from the Sun Korlevic
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Korlevic is 5.771 AU from Earth today (48.0 light-minutes).

In the sky

Right ascension
19h 22m 57s
Declination
-21° 37′ 43″
Constellation
Sagittarius
Distance from Earth
5.78 AU
Elongation from the Sun
79.13° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
4.654 AU
Eccentricity
0.316
Inclination
2.97°
Orbital period
10.04 years
Perihelion
3.183 AU
Aphelion
6.125 AU
Longitude of ascending node
290.52°
Argument of periapsis
154.73°
Epoch · J2000
2455961.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 855.9 LD
2.1993 AU
Tisserand (Jupiter)
2.91

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
1,174
Data arc
21.51 years
First observed
3 November 1999
Last observed
7 May 2021
Residual RMS
0.76 ″
Solution · Otto Matic
2 January 2025

Visual & observation

Absolute magnitude (H)
12.9
Total magnitude M₁ · K₁ 6.5
12.9

Discovery & classification

Also known as 203P · 203P/1999 WJ7 · 203P/2008 R4

Named

Close approaches 11 on record

When (UTC) Body Distance Lunar distances Relative speed
2054-10-18 04:02:00 Juptr 0.7551 AU 293.9 LD 3.2 km/s
2058-10-03 19:18:00 Juptr 1.5758 AU 613.2 LD 4 km/s
2113-04-10 13:10:00 Juptr 0.6665 AU 259.4 LD 3.2 km/s
2117-09-12 14:20:00 Juptr 1.6858 AU 656.1 LD 4.4 km/s
2167-12-16 18:49:00 Juptr 1.931 AU 751.5 LD 5.8 km/s
2174-06-03 20:11:00 Jupiter 0.2225 AU 86.6 LD 4.8 km/s
2174-06-03 20:11:00 Juptr 0.2225 AU 86.6 LD 4.8 km/s
2196-01-21 01:13:00 Juptr 0.3865 AU 150.4 LD 5.1 km/s
2196-01-21 01:13:00 Jupiter 0.3865 AU 150.4 LD 5.1 km/s

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

Sources