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Comet

Nishimura

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C/2023 P1 (Nishimura)

Nishimura is a comet in the Comet orbit class. Its orbit takes it from 0.23 AU to 115.32 AU from the Sun; one orbit takes 439.1 years. Orbit from the JPL solution of 8 August 2024.

Where is it now

Distance from Sun
11.481 AU
True anomaly
164.71°
Distance from Earth
11.75 AU
As of
24 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 Nishimura — 11.481 AU from the Sun Nishimura
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Nishimura is 11.75 AU from Earth today (1.6 light-hours).

In the sky

Right ascension
08h 52m 57s
Declination
-29° 50′ 27″
Constellation
Pyxis
Distance from Earth
11.75 AU
Elongation from the Sun
72.45° — 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
57.772 AU
Eccentricity
0.9961
Inclination
132.48°
Orbital period
439.1 years
Perihelion
0.225 AU
Aphelion
115.318 AU
Longitude of ascending node
66.83°
Argument of periapsis
116.3°
Epoch · J2000
2460195.5
Orbit class · COM
Comet
Earth MOID · 30.7 LD
0.0789 AU
Tisserand (Jupiter)
-0.307

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
638
Data arc
495 days
First observed
19 January 2023
Last observed
28 May 2024
Residual RMS
0.51 ″
Solution · Davide Farnocchia
8 August 2024

Visual & observation

Absolute magnitude (H)
12.2
Total magnitude M₁ · K₁ 8
12.2

Discovery & classification

Also known as 2023 P1

Named

Sources