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Trans-Neptunian object

2015 KN175

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(2015 KN175)

2015 KN175 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 41.45 AU to 52.79 AU from the Sun; one orbit takes 323.4 years. Orbit from the JPL solution of 28 April 2022.

Where is it now

Distance from Sun
47.25 AU
True anomaly
261.75°
Distance from Earth
48.063 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 2015 KN175 — 47.25 AU from the Sun 2015 KN175
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 KN175 is 48.063 AU from Earth today (6.7 light-hours).

In the sky

Right ascension
16h 19m 38s
Declination
-15° 34′ 13″
Constellation
Scorpius
Distance from Earth
48.07 AU
Elongation from the Sun
33.91° — 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
47.117 AU
Eccentricity
0.1204
Inclination
12.79°
Orbital period
323.4 years
Perihelion
41.446 AU
Aphelion
52.788 AU
Longitude of ascending node
93.41°
Argument of periapsis
250.68°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,745.8 LD
40.4597 AU
Tisserand (Jupiter)
5.937

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
34
Data arc
7.16 years
First observed
25 February 2015
Last observed
26 April 2022
Residual RMS
0.15 ″
Solution · Otto Matic
28 April 2022

Visual & observation

Absolute magnitude (H)
6.96

Discovery & classification

TNO

Sources