Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comet 37P/Forbes

Comet 37P/Forbes is currently in the constellation of Auriga. The current Right Ascension of Comet 37P/Forbes is 05h 51m 57s and the Declination is +30° 08’ 51” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 37P/Forbes is 26.22 (JPL).

Summary of key facts about Comet 37P/Forbes [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

05h 51m 57s
+30° 08’ 51”
  • 37P/Forbes is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the North-West direction at an altitude of 1° above the horizon.
  • Given its current magnitude, 37P/Forbes is visible only through long exposure photography.
  • See also 37P/Forbes rise and set times.
  • Go to interactive sky chart

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Additional information about Comet 37P/Forbes available on TheSkyLive:

Available Resources

Comet 37P/Forbes Position and Finder Charts

Below we provide Comet 37P/Forbes finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet 37P/Forbes in Auriga on January, 28 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 37P/Forbes in Auriga on January, 28 2021
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 37P/Forbes is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 05h 51m 57s
Dec: +30° 08’ 51”
Deep sky finder chart for Comet 37P/Forbes
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 37P/Forbes?, a page that provides all the information needed to find Comet 37P/Forbes in the sky and additional links to sky charts.

Comet 37P/Forbes Distance from Earth

The distance of Comet 37P/Forbes from Earth is currently 663,084,963 kilometers, equivalent to 4.432449 Astronomical Units. Light takes 36 minutes and 51.8134 seconds to travel from Comet 37P/Forbes and arrive to us.

36 minutes and 51.8134 seconds

The following chart shows the distance of Comet 37P/Forbes from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet 37P/Forbes from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 37P/Forbes from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 37P/Forbes to Earth

Between January 2013 and December 2100, the closest approach of Comet 37P/Forbes to Earth happens on Mon Jul 23 2063 at a distance of 0.632826 Astronomical Units, or 94,669,375 kilometers:

Mon Jul 23 2063

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet 37P/Forbes brightness

The current visual magnitude of Comet 37P/Forbes is 26.22.


The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 37P/Forbes, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Comet 37P/Forbes between January 2013 and December 2100

Comet 37P/Forbes rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet 37P/Forbes rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 59.9°
Max altitude: 68.7°
Azimuth: 300.1°

The rise and set times are defined as the time at which the upper limb of Comet 37P/Forbes touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 37P/Forbes Orbital Elements

The following table lists the orbital elements of Comet 37P/Forbes at epoch 26 March 2017 00:00 UTC (JD: 2457839.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.53447671
Orbit inclination i 8.96209070°
Perihelion distance q 1.60884822 AU
240,680,269 km
Aphelion distance Q 5.30315067 AU
793,340,050 km
Semi-major axis a 3.45599945 AU
517,010,159 km
Orbital period period 6.4200 years
2,346.7073 days
Date of perihelion transit Tp 2018-May-04 03:32:27
2,458,242.6475 JD
Next perihelion transit 2024-Oct-05 20:30
2,460,589.3548 JD
Argument of perihelion peri 330.00066585521°
Longitude of the ascending node node 314.63969140096°
Mean anomaly M 298.15457279186°
Mean motion n 0.15340644°/day

Visualization of Comet 37P/Forbes Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 37P/Forbes with respect of the Sun and the orbits of the major planets. The position of Comet 37P/Forbes and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Comet 37P/Forbes
View Comet 37P/Forbes in the 3D Solar System Simulator

Comet 37P/Forbes 15 Days Ephemeris

The following table lists the ephemerides of Comet 37P/Forbes computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 37P/Forbes in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 21 05h 55m 53s +30° 19’ 31” 26.17 Auriga
2021 Jan 22 05h 55m 18s +30° 18’ 07” 26.18 Auriga
2021 Jan 23 05h 54m 43s +30° 16’ 42” 26.18 Auriga
2021 Jan 24 05h 54m 10s +30° 15’ 16” 26.19 Auriga
2021 Jan 25 05h 53m 38s +30° 13’ 49” 26.20 Auriga
2021 Jan 26 05h 53m 05s +30° 12’ 20” 26.20 Auriga
2021 Jan 27 05h 52m 35s +30° 10’ 49” 26.21 Auriga
2021 Jan 28 05h 52m 05s +30° 09’ 18” 26.22 Auriga
2021 Jan 29 05h 51m 36s +30° 07’ 45” 26.22 Auriga
2021 Jan 30 05h 51m 07s +30° 06’ 11” 26.23 Auriga
2021 Jan 31 05h 50m 39s +30° 04’ 36” 26.24 Auriga
2021 Feb 01 05h 50m 13s +30° 03’ 01” 26.24 Auriga
2021 Feb 02 05h 49m 48s +30° 01’ 24” 26.25 Auriga
2021 Feb 03 05h 49m 23s +29° 59’ 48” 26.26 Auriga