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Trans-Neptunian object

2015 VB173

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(2015 VB173)

Where is it now

Distance from Sun
42.645 AU
True anomaly
83.72°
Distance from Earth
41.875 AU
As of
18 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 — 0.996 AU from the Sun Earth 2015 VB173 — 42.645 AU from the Sun 2015 VB173
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 VB173 is 41.875 AU from Earth today (5.8 light-hours).

In the sky

Right ascension
04h 13m 11s
Declination
+20° 44′ 44″
Constellation
Taurus
Distance from Earth
41.86 AU
Elongation from the Sun
141.16° — 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
42.784 AU
Eccentricity
0.0243
Inclination
3.25°
Orbital period
279.9 years
Perihelion
41.744 AU
Aphelion
43.824 AU
Longitude of ascending node
71.57°
Argument of periapsis
269°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,853.4 LD
40.7361 AU
Tisserand (Jupiter)
5.846

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
46
Data arc
10.12 years
First observed
17 November 2014
Last observed
31 December 2024
Residual RMS
0.18 ″
Solution · Otto Matic
11 February 2025

Visual & observation

Absolute magnitude (H)
8.21

Discovery & classification

TNO

Sources