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Comet

Tritton

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157P/Tritton-B

Where is it now

Distance from Sun
3.823 AU
True anomaly
218.78°
Distance from Earth
3.76 AU
As of
11 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 — 0.998 AU from the Sun Earth Tritton — 3.823 AU from the Sun Tritton
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Tritton is 3.76 AU from Earth today (31.3 light-minutes).

In the sky

Right ascension
19h 01m 50s
Declination
-19° 53′ 07″
Constellation
Sagittarius
Distance from Earth
3.77 AU
Elongation from the Sun
85.45° — well clear of the Sun

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
3.111 AU
Eccentricity
0.5011
Inclination
12.43°
Orbital period
5.49 years
Perihelion
1.552 AU
Aphelion
4.67 AU
Longitude of ascending node
287.1°
Argument of periapsis
153.98°
Epoch · J2000
2459834.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 225.2 LD
0.5787 AU
Tisserand (Jupiter)
2.98

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
28
Data arc
38 days
First observed
21 August 2022
Last observed
28 September 2022
Residual RMS
0.98 ″
Solution · Davide Farnocchia
15 November 2022

Visual & observation

Absolute magnitude (H)
15.7
Total magnitude M₁ · K₁ 10
15.7

Discovery & classification

Also known as 157P-B

Named

Sources