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Comet

Fuls

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P/2017 D1 (Fuls)

Where is it now

Distance from Sun
2.74 AU
True anomaly
339.74°
Distance from Earth
2.093 AU
As of
22 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.995 AU from the Sun Earth Fuls — 2.74 AU from the Sun Fuls
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Fuls is 2.093 AU from Earth today (17.4 light-minutes).

In the sky

Right ascension
05h 53m 18s
Declination
+17° 30′ 41″
Constellation
Orion
Distance from Earth
2.08 AU
Elongation from the Sun
121.5° — 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
4.803 AU
Eccentricity
0.4403
Inclination
20.73°
Orbital period
10.52 years
Perihelion
2.688 AU
Aphelion
6.917 AU
Longitude of ascending node
82.34°
Argument of periapsis
7.26°
Epoch · J2000
2457601.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 663.0 LD
1.7037 AU
Tisserand (Jupiter)
2.697

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
77
Data arc
546 days
First observed
8 September 2015
Last observed
7 March 2017
Residual RMS
0.54 ″
Solution · Otto Matic
31 July 2022

Visual & observation

Absolute magnitude (H)
17.1
Total magnitude M₁ · K₁ 4.5
17.1

Discovery & classification

Also known as 2017 D1

Named

Close approaches 7 on record

When (UTC) Body Distance Lunar distances Relative speed
2030-09-07 09:57:00 Juptr 1.2314 AU 479.2 LD 5.7 km/s
2044-03-13 05:20:00 Juptr 1.6325 AU 635.3 LD 5.5 km/s
2125-07-07 21:48:00 Juptr 1.2434 AU 483.9 LD 5.7 km/s
2139-02-02 05:30:00 Juptr 1.6083 AU 625.9 LD 5.5 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources