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Comet

Kushida-Muramatsu

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147P/Kushida-Muramatsu

Where is it now

Distance from Sun
4.801 AU
True anomaly
166.71°
Distance from Earth
5.617 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 Kushida-Muramatsu — 4.801 AU from the Sun Kushida-Muramatsu
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Kushida-Muramatsu is 5.617 AU from Earth today (46.7 light-minutes).

In the sky

Right ascension
15h 57m 38s
Declination
-19° 33′ 12″
Constellation
Libra
Distance from Earth
5.62 AU
Elongation from the Sun
31.6° — near the Sun — look low at dusk or dawn

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
3.802 AU
Eccentricity
0.2756
Inclination
2.37°
Orbital period
7.41 years
Perihelion
2.755 AU
Aphelion
4.85 AU
Longitude of ascending node
93.77°
Argument of periapsis
347.03°
Epoch · J2000
2453673.5
Orbit class · ETc
Encke-type comet
Earth MOID · 688.7 LD
1.7697 AU
Tisserand (Jupiter)
3.011

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
57
Data arc
16.32 years
First observed
13 September 1999
Last observed
8 January 2016
Residual RMS
0.54 ″
Solution · Davide Farnocchia
6 November 2024

Physical properties

Mean radius
0.21 km

Visual & observation

Absolute magnitude (H)
13.6
Total magnitude M₁ · K₁ 11.5
13.6

Discovery & classification

Also known as 147P · 147P/1993 X1 · 147P/2000 T2 · 1993 XIX · 1993t

Named

Close approaches 11 on record

When (UTC) Body Distance Lunar distances Relative speed
2047-04-02 11:19:00 Juptr 1.4918 AU 580.6 LD 3.3 km/s
2073-05-20 03:19:00 Juptr 1.8073 AU 703.3 LD 4.4 km/s
2099-09-17 17:58:00 Juptr 1.3239 AU 515.2 LD 1.6 km/s
2123-03-28 01:34:00 Juptr 1.5772 AU 613.8 LD 2.2 km/s
2125-10-30 13:43:00 Juptr 1.8141 AU 706.0 LD 4.9 km/s
2185-09-03 11:17:00 Juptr 1.9896 AU 774.3 LD 6.3 km/s
2188-12-11 07:42:00 Juptr 1.6353 AU 636.4 LD 3.5 km/s

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

Sources