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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31

Comet 55P/Tempel-Tuttle

Comet 55P/Tempel-Tuttle is currently in the constellation of Libra. The current Right Ascension of Comet 55P/Tempel-Tuttle is 15h 24m 50s and the Declination is -17° 07’ 32” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 55P/Tempel-Tuttle is 46.17 (JPL) while the latest observed magnitude is n/a (COBS).

15h 24m 50s
-17° 07’ 32”

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Today's rise, transit and set times of Comet 55P/Tempel-Tuttle from Greenwich, United Kingdom [change] (all times relative to the local timezone Europe/London):

Azimuth: 107.1°
Max altitude: 21.4°
Azimuth: 252.9°
  • 55P/Tempel-Tuttle is below the horizon from Greenwich, United Kingdom [change].
  • Given its current magnitude, 55P/Tempel-Tuttle is .
  • 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.

Available Resources

Comet 55P/Tempel-Tuttle Position and Finder Charts

Below we provide Comet 55P/Tempel-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 55P/Tempel-Tuttle in Libra on April, 02 2023
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 55P/Tempel-Tuttle in Libra on April, 02 2023
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 55P/Tempel-Tuttle is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 15h 24m 50s
Dec: -17° 07’ 32”
Deep sky finder chart for Comet 55P/Tempel-Tuttle
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 55P/Tempel-Tuttle?, a page that provides all the information needed to find Comet 55P/Tempel-Tuttle in the sky and additional links to sky charts.

Comet 55P/Tempel-Tuttle Distance from Earth

The distance of Comet 55P/Tempel-Tuttle from Earth is currently 2,307,177,009 kilometers, equivalent to 15.422526 Astronomical Units. Light takes 2 hours, 8 minutes and 15.9141 seconds to travel from Comet 55P/Tempel-Tuttle and arrive to us.

2 hours, 8 minutes and 15.9141 seconds

The following chart shows the distance of Comet 55P/Tempel-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.

Chart of the distance of Comet 55P/Tempel-Tuttle from Earth in Astronomical Units (au)

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 55P/Tempel-Tuttle from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet 55P/Tempel-Tuttle to Earth

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 55P/Tempel-Tuttle to Earth happens on Sun Jan 25 2065 at a distance of 0.404270 Astronomical Units, or 60,477,952 kilometers:

Sun Jan 25 2065

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

Comet 55P/Tempel-Tuttle Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 55P/Tempel-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.

Chart of the magnitude of Comet 55P/Tempel-Tuttle as a function of time

Comet 55P/Tempel-Tuttle Orbital Elements

The following table lists the orbital elements of Comet 55P/Tempel-Tuttle at epoch 14 August 1998 00:00 UTC (JD: 2451040.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.90555272
Orbit inclination i 162.48657538°
Perihelion distance q 0.97642792 AU
146,071,537 km
Aphelion distance Q 19.70024854 AU
2,947,115,240 km
Semi-major axis a 10.33833823 AU
1,546,593,389 km
Orbital period period 33.2418 years
12,141.5612 days
Date of perihelion transit Tp 1998-Feb-28 02:20:44
2,450,872.5977 JD
Next perihelion transit 2031-May-27 15:48
2,463,014.1589 JD
Argument of perihelion peri 172.50027368281°
Longitude of the ascending node node 235.27098914908°
Mean anomaly M 4.9783396846882°
Mean motion n 0.02965022°/day

Visualization of Comet 55P/Tempel-Tuttle Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 55P/Tempel-Tuttle with respect of the Sun and the orbits of the major planets. The position of Comet 55P/Tempel-Tuttle 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 55P/Tempel-Tuttle
View Comet 55P/Tempel-Tuttle in the 3D Solar System Simulator

Comet 55P/Tempel-Tuttle 15 Days Ephemeris

The following table lists the ephemerides of Comet 55P/Tempel-Tuttle computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 55P/Tempel-Tuttle in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Mar 26 15h 26m 18s -17° 14’ 16” 46.20 Libra
2023 Mar 27 15h 26m 08s -17° 13’ 24” 46.20 Libra
2023 Mar 28 15h 25m 56s -17° 12’ 33” 46.19 Libra
2023 Mar 29 15h 25m 45s -17° 11’ 39” 46.19 Libra
2023 Mar 30 15h 25m 32s -17° 10’ 46” 46.18 Libra
2023 Mar 31 15h 25m 20s -17° 09’ 51” 46.18 Libra
2023 Apr 01 15h 25m 09s -17° 08’ 57” 46.18 Libra
2023 Apr 02 15h 24m 56s -17° 08’ 00” 46.17 Libra
2023 Apr 03 15h 24m 43s -17° 07’ 05” 46.17 Libra
2023 Apr 04 15h 24m 32s -17° 06’ 07” 46.17 Libra
2023 Apr 05 15h 24m 19s -17° 05’ 09” 46.16 Libra
2023 Apr 06 15h 24m 06s -17° 04’ 10” 46.16 Libra
2023 Apr 07 15h 23m 52s -17° 03’ 11” 46.16 Libra
2023 Apr 08 15h 23m 39s -17° 02’ 12” 46.15 Libra