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Trans-Neptunian object

2007 JF45

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(2007 JF45)

Where is it now

Distance from Sun
40.221 AU
True anomaly
111.61°
Distance from Earth
40.645 AU
As of
16 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 — 0.997 AU from the Sun Earth 2007 JF45 — 40.221 AU from the Sun 2007 JF45
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2007 JF45 is 40.645 AU from Earth today (5.6 light-hours).

In the sky

Right ascension
17h 48m 03s
Declination
-12° 31′ 03″
Constellation
Serpens
Distance from Earth
40.65 AU
Elongation from the Sun
63.88° — 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
39.215 AU
Eccentricity
0.0887
Inclination
11.02°
Orbital period
245.6 years
Perihelion
35.735 AU
Aphelion
42.695 AU
Longitude of ascending node
176.23°
Argument of periapsis
340.44°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 13,522.7 LD
34.7474 AU
Tisserand (Jupiter)
5.501

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used
225
Data arc
11.02 years
First observed
12 May 2007
Last observed
20 May 2018
Residual RMS
0.37 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
5.97

Discovery & classification

TNO

Sources