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Comet

Scotti

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416P/Scotti

Where is it now

Distance from Sun
5.075 AU
True anomaly
214.71°
Distance from Earth
4.416 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 Scotti — 5.075 AU from the Sun Scotti
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Scotti is 4.416 AU from Earth today (36.7 light-minutes).

In the sky

Right ascension
22h 32m 42s
Declination
-09° 55′ 09″
Constellation
Aquarius
Distance from Earth
4.42 AU
Elongation from the Sun
126.26° — 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
4.005 AU
Eccentricity
0.4557
Inclination
3.37°
Orbital period
8.02 years
Perihelion
2.18 AU
Aphelion
5.831 AU
Longitude of ascending node
355.8°
Argument of periapsis
134.67°
Epoch · J2000
2457363.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 465.5 LD
1.196 AU
Tisserand (Jupiter)
2.858

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used
138
Data arc
8.17 years
First observed
6 January 2013
Last observed
10 March 2021
Residual RMS
0.46 ″
Solution · Otto Matic
24 April 2025

Visual & observation

Absolute magnitude (H)
16.1
Total magnitude M₁ · K₁ 10
16.1

Discovery & classification

Also known as 416P · 416P/2013 A2 · 416P/2021 A8

Named

Close approaches 12 on record

When (UTC) Body Distance Lunar distances Relative speed
2032-07-01 03:13:00 Juptr 0.636 AU 247.5 LD 4.5 km/s
2056-03-30 14:56:00 Juptr 0.658 AU 256.1 LD 4.5 km/s
2080-04-01 12:33:00 Juptr 0.6514 AU 253.5 LD 4.6 km/s
2103-06-10 11:51:00 Juptr 0.7045 AU 274.2 LD 4.5 km/s
2126-07-10 16:16:00 Juptr 0.6255 AU 243.4 LD 4.7 km/s
2149-12-13 00:43:00 Juptr 0.5698 AU 221.7 LD 4.9 km/s
2173-05-17 10:19:00 Juptr 0.5585 AU 217.4 LD 5.5 km/s

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

Sources