Mrkos is a comet in the Comet orbit class. Its orbit takes it from 0.53 AU to 98.55 AU from the Sun; one orbit takes 348.7 years. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 75.399 AU
- True anomaly
- 175.31°
- Distance from Earth
- 76.231 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.
In the sky
- Right ascension
- 14h 33m 04s
- Declination
- -44° 02′ 18″
- Constellation
- Lupus
- Distance from Earth
- 76.23 AU
- Elongation from the Sun
- 32.75° — 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.
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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
- 49.54 AU
- Eccentricity
- 0.9892
- Inclination
- 86.5°
- Orbital period
- 348.7 years
- Perihelion
- 0.534 AU
- Aphelion
- 98.547 AU
- Longitude of ascending node
- 48.94°
- Argument of periapsis
- 32.51°
- Epoch · J2000
- 2435302.5
- Orbit class · COM
- Comet
- Earth MOID · 155.3 LD
- 0.399 AU
- Tisserand (Jupiter)
- 0.16
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 21
- Data arc
- 84 days
- First observed
- 16 June 1955
- Last observed
- 8 September 1955
- Residual RMS
- 0.76 ″
- Solution · Otto Matic
- 15 April 2021
Discovery & classification
Also known as 1955 L1
Sources
- orbital elements: JPL SBDB