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Comet

LINEAR

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354P/LINEAR

Where is it now

Distance from Sun
2.125 AU
True anomaly
299.14°
Distance from Earth
1.185 AU
As of
11 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 — 0.998 AU from the Sun Earth LINEAR — 2.125 AU from the Sun LINEAR
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. LINEAR is 1.185 AU from Earth today (9.9 light-minutes).

In the sky

Right ascension
02h 32m 23s
Declination
+24° 28′ 08″
Constellation
Aries
Distance from Earth
1.18 AU
Elongation from the Sun
153.94° — well clear of the Sun

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
2.29 AU
Eccentricity
0.125
Inclination
5.26°
Orbital period
3.46 years
Perihelion
2.004 AU
Aphelion
2.576 AU
Longitude of ascending node
320.24°
Argument of periapsis
132.73°
Epoch · J2000
2456701.5
Orbit class · ETc
Encke-type comet
Earth MOID · 398.7 LD
1.0245 AU
Tisserand (Jupiter)
3.583

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
250
Data arc
7.06 years
First observed
6 January 2010
Last observed
28 January 2017
Residual RMS
0.5 ″
Solution · Davide Farnocchia
16 April 2024

Visual & observation

Absolute magnitude (H)
15.6
Total magnitude M₁ · K₁ 10
15.6

Discovery & classification

Also known as 354P · 354P/2010 A2 · 354P/2017 B5

Named

Sources