Skip to content
Public Universe
Comet

Ikeya-Murakami

Add to an observing list or journal →

332P/Ikeya-Murakami-B

Where is it now

Distance from Sun
1.804 AU
True anomaly
307.65°
Distance from Earth
1.993 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 Ikeya-Murakami — 1.804 AU from the Sun Ikeya-Murakami
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Ikeya-Murakami is 1.993 AU from Earth today (16.6 light-minutes).

In the sky

Right ascension
09h 18m 59s
Declination
+24° 25′ 46″
Constellation
Cancer
Distance from Earth
1.99 AU
Elongation from the Sun
64.64° — 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
3.083 AU
Eccentricity
0.4898
Inclination
9.38°
Orbital period
5.41 years
Perihelion
1.573 AU
Aphelion
4.593 AU
Longitude of ascending node
3.8°
Argument of periapsis
152.38°
Epoch · J2000
2457600.5
Orbit class · ETc
Encke-type comet
Earth MOID · 228.7 LD
0.5877 AU
Tisserand (Jupiter)
3.012

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
132
Data arc
68 days
First observed
3 January 2016
Last observed
11 March 2016
Residual RMS
0.58 ″
Solution · Davide Farnocchia
5 April 2018

Visual & observation

Absolute magnitude (H)
16.5
Total magnitude M₁ · K₁ 17
16.5

Discovery & classification

Also known as 332P-B · 332P-B/2010 V1-B

Named

Close approaches 10 on record

When (UTC) Body Distance Lunar distances Relative speed
2045-07-31 16:04:00 Juptr 1.0567 AU 411.2 LD 6.1 km/s
2057-11-01 12:42:00 Juptr 0.4666 AU 181.6 LD 4.7 km/s
2057-11-01 12:42:00 Jupiter 0.4666 AU 181.6 LD 4.7 km/s
2105-02-01 16:22:00 Juptr 0.6768 AU 263.4 LD 5.1 km/s
2117-04-03 02:05:00 Juptr 1.0071 AU 391.9 LD 6.1 km/s
2176-08-02 23:44:00 Juptr 0.5992 AU 233.2 LD 5 km/s

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

Sources