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Comet

Mueller

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C/1994 E1 (Mueller)

Mueller is a comet in the Comet orbit class. Its orbit takes it from 1.75 AU to 108.92 AU from the Sun; one orbit takes 411.6 years. Orbit from the JPL solution of 15 April 2021.

Where is it now

Distance from Sun
49.686 AU
True anomaly
163.95°
Distance from Earth
49.449 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 Mueller — 49.686 AU from the Sun Mueller
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Mueller is 49.449 AU from Earth today (6.9 light-hours).

In the sky

Right ascension
06h 50m 46s
Declination
-11° 58′ 32″
Constellation
Canis Major
Distance from Earth
49.44 AU
Elongation from the Sun
103.76° — well clear of the Sun

Visible from both hemispheres.

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
55.335 AU
Eccentricity
0.9684
Inclination
145.14°
Orbital period
411.6 years
Perihelion
1.751 AU
Aphelion
108.919 AU
Longitude of ascending node
5.18°
Argument of periapsis
98.92°
Epoch · J2000
2449451.5
Orbit class · COM
Comet
Earth MOID · 411.4 LD
1.0572 AU
Tisserand (Jupiter)
-1.242

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
73
Data arc
62 days
First observed
11 March 1994
Last observed
12 May 1994
Residual RMS
0.91 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
11
Total magnitude M₁ · K₁ 12.5
11

Discovery & classification

Also known as 1994 E1

Named

Sources