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🌎  Greenwich, United Kingdom [change]

Comet 8P/Tuttle

Comet 8P/Tuttle is currently in the constellation of Centaurus. The current Right Ascension of Comet 8P/Tuttle is 12h 08m 53s and the Declination is -37° 28’ 11” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 8P/Tuttle is 16.84 (JPL) while the latest observed magnitude is 9.6 (COBS).

Summary of key facts about Comet 8P/Tuttle [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]:

12h 08m 53s
-37° 28’ 11”

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 8P/Tuttle available on TheSkyLive:

Available Resources

Comet 8P/Tuttle Position and Finder Charts

Below we provide Comet 8P/Tuttle 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 8P/Tuttle in Centaurus on October, 26 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 8P/Tuttle in Centaurus on October, 26 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 8P/Tuttle is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 12h 08m 53s
Dec: -37° 28’ 11”
Deep sky finder chart for Comet 8P/Tuttle
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 8P/Tuttle?, a page that provides all the information needed to find Comet 8P/Tuttle in the sky and additional links to sky charts.

Comet 8P/Tuttle Distance from Earth

The distance of Comet 8P/Tuttle from Earth is currently 304,405,576 kilometers, equivalent to 2.034826 Astronomical Units. Light takes 16 minutes and 55.3877 seconds to travel from Comet 8P/Tuttle and arrive to us.

16 minutes and 55.3877 seconds

The following chart shows the distance of Comet 8P/Tuttle 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 8P/Tuttle 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 8P/Tuttle from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 8P/Tuttle to Earth

Between January 2013 and December 2100, the closest approach of Comet 8P/Tuttle to Earth happens on Mon Dec 28 2048 at a distance of 0.175479 Astronomical Units, or 26,251,247 kilometers:

Mon Dec 28 2048

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

Comet 8P/Tuttle brightness

The current visual magnitude of Comet 8P/Tuttle is 16.84.


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 8P/Tuttle, 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 8P/Tuttle between January 2013 and December 2100

Comet 8P/Tuttle 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 8P/Tuttle rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 127.4°
Max altitude: 1.1°
Azimuth: 232.6°

The rise and set times are defined as the time at which the upper limb of Comet 8P/Tuttle 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 8P/Tuttle 15 Days Ephemeris

The following table lists the ephemerides of Comet 8P/Tuttle computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 8P/Tuttle in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Oct 19 11h 40m 54s -33° 27’ 44” 16.67 Hydra
2021 Oct 20 11h 44m 36s -34° 01’ 37” 16.69 Hydra
2021 Oct 21 11h 48m 19s -34° 34’ 54” 16.72 Hydra
2021 Oct 22 11h 52m 00s -35° 07’ 33” 16.74 Hydra
2021 Oct 23 11h 55m 44s -35° 39’ 38” 16.76 Hydra
2021 Oct 24 11h 59m 26s -36° 11’ 06” 16.78 Centaurus
2021 Oct 25 12h 03m 10s -36° 41’ 57” 16.81 Centaurus
2021 Oct 26 12h 06m 54s -37° 12’ 14” 16.83 Centaurus
2021 Oct 27 12h 10m 37s -37° 41’ 53” 16.85 Centaurus
2021 Oct 28 12h 14m 21s -38° 10’ 58” 16.87 Centaurus
2021 Oct 29 12h 18m 06s -38° 39’ 26” 16.90 Centaurus
2021 Oct 30 12h 21m 51s -39° 07’ 19” 16.92 Centaurus
2021 Oct 31 12h 25m 36s -39° 34’ 37” 16.94 Centaurus
2021 Nov 01 12h 29m 20s -40° 01’ 21” 16.97 Centaurus