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Comet

Brooks

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C/1906 B1 (Brooks)

Brooks is a comet in the Comet orbit class. Its orbit takes it from 1.3 AU to 17,706.69 AU from the Sun; one orbit takes 833,138.2 years. Orbit from the JPL solution of 20 February 2024.

Where is it now

Distance from Sun
135.903 AU
True anomaly
168.83°
Distance from Earth
135.296 AU
As of
25 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 — 0.994 AU from the Sun Earth Brooks — 135.903 AU from the Sun Brooks
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Brooks is 135.296 AU from Earth today (18.8 light-hours).

In the sky

Right ascension
03h 31m 12s
Declination
-35° 39′ 50″
Constellation
Fornax
Distance from Earth
135.3 AU
Elongation from the Sun
127.52° — 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
8,853.994 AU
Eccentricity
0.9999
Inclination
126.44°
Orbital period
833,138.2 years
Perihelion
1.296 AU
Aphelion
17,706.692 AU
Longitude of ascending node
287.71°
Argument of periapsis
89.84°
Epoch · J2000
2417263.5
Orbit class · COM
Comet
Earth MOID · 341.6 LD
0.8776 AU
Tisserand (Jupiter)
-0.838

Orbit quality

Observations used
158
Data arc
83 days
First observed
28 January 1906
Last observed
21 April 1906
Residual RMS
1.05 ″
Solution · Otto Matic
20 February 2024

Visual & observation

Absolute magnitude (H)
7
Total magnitude M₁ · K₁ 16.8
7

Discovery & classification

Also known as 1906 B1

Named

Sources