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

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 18m 10s and the Declination is -18° 09’ 18” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 55P/Tempel-Tuttle is 48.00 (JPL).

Summary of key facts about Comet 55P/Tempel-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]:

15h 18m 10s
-18° 09’ 18”
Libra
48.00

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 55P/Tempel-Tuttle available on TheSkyLive:

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 August, 04 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 55P/Tempel-Tuttle in Libra on August, 04 2020
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.

55P/Tempel-Tuttle
RA: 15h 18m 10s
Dec: -18° 09’ 18”
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 2,678,683,643 kilometers, equivalent to 17.905894 Astronomical Units. Light takes 2 hours, 28 minutes and 55.1269 seconds to travel from Comet 55P/Tempel-Tuttle and arrive to us.

2,678,683,643
17.905894
2 hours, 28 minutes and 55.1269 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.

Distance of Comet 55P/Tempel-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 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 January 2013 and December 2100 the closest approach of Comet 55P/Tempel-Tuttle to Earth happens on Sun Jan 25 2065 at a distance of 0.40427029 Astronomical Units, or 60,477,974 kilometers:

Sun Jan 25 2065
60,477,974
0.404270

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

Comet 55P/Tempel-Tuttle brightness

The current visual magnitude of Comet 55P/Tempel-Tuttle is 48.00.

48.00
-
-

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 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.

Predicted magnitude of Comet 55P/Tempel-Tuttle between January 2013 and December 2100

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

Azimuth: 108.2°
Max altitude: 20.4°
Azimuth: 251.8°

The rise and set times are defined as the time at which the upper limb of Comet 55P/Tempel-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 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 33.2400 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
2020 Jul 28 15h 18m 38s -18° 11’ 36” 48.00 Libra
2020 Jul 29 15h 18m 33s -18° 11’ 15” 48.00 Libra
2020 Jul 30 15h 18m 29s -18° 10’ 54” 48.00 Libra
2020 Jul 31 15h 18m 24s -18° 10’ 33” 48.00 Libra
2020 Aug 01 15h 18m 20s -18° 10’ 14” 48.00 Libra
2020 Aug 02 15h 18m 16s -18° 09’ 56” 48.00 Libra
2020 Aug 03 15h 18m 14s -18° 09’ 38” 48.00 Libra
2020 Aug 04 15h 18m 11s -18° 09’ 20” 48.00 Libra
2020 Aug 05 15h 18m 06s -18° 09’ 05” 48.00 Libra
2020 Aug 06 15h 18m 05s -18° 08’ 49” 48.00 Libra
2020 Aug 07 15h 18m 02s -18° 08’ 35” 48.00 Libra
2020 Aug 08 15h 18m 00s -18° 08’ 22” 48.00 Libra
2020 Aug 09 15h 17m 57s -18° 08’ 09” 48.00 Libra
2020 Aug 10 15h 17m 56s -18° 07’ 59” 48.00 Libra