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Comet

NEAT

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C/2004 P1 (NEAT)

NEAT is a comet in the Jupiter-family comet (P < 20 y) orbit class. Its orbit takes it from 6.01 AU to 16,153.38 AU from the Sun; one orbit takes 726,274.8 years. Orbit from the JPL solution of 15 April 2021.

Where is it now

Distance from Sun
40.561 AU
True anomaly
134.76°
Distance from Earth
39.899 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 NEAT — 40.561 AU from the Sun NEAT
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. NEAT is 39.899 AU from Earth today (5.5 light-hours).

In the sky

Right ascension
05h 09m 45s
Declination
+36° 34′ 56″
Constellation
Auriga
Distance from Earth
39.89 AU
Elongation from the Sun
131.81° — 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
8,079.699 AU
Eccentricity
0.9993
Inclination
28.82°
Orbital period
726,274.8 years
Perihelion
6.014 AU
Aphelion
16,153.384 AU
Longitude of ascending node
284.18°
Argument of periapsis
16.58°
Epoch · J2000
2453257.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 1,949.1 LD
5.0084 AU
Tisserand (Jupiter)
2.664

Orbit quality

Observations used
148
Data arc
842 days
First observed
11 May 2003
Last observed
30 August 2005
Residual RMS
0.77 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
10.3
Total magnitude M₁ · K₁ 6.8
10.3

Discovery & classification

Also known as 2004 P1

Named

Sources