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Comet 41P/Tuttle-Giacobini-Kresak

Above the horizon.  Rise: 1:18 | Tran: 7:47 | Set: 14:16
Alt: 42.96°   Az: 159.39°   Direction: South-South-East

Comet 41P/Tuttle-Giacobini-Kresak is in the constellation of Cetus, at a distance of 782,057,175.0 kilometers from Earth. The current Right Ascension is 02h 28m 58s and the Declination is +06° 07’ 14” (apparent coordinates). The estimated magnitude of comet 41P/Tuttle-Giacobini-Kresak, computed using JPL Horizons's data, is 23.68.

Finder Charts

The sky charts below show, at different resolutions, the position of comet 41P/Tuttle-Giacobini-Kresak in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 41P/Tuttle-Giacobini-Kresak in the constellation of Cetus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 41P/Tuttle-Giacobini-Kresak in the constellation of Cetus on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 41P/Tuttle-Giacobini-Kresak against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

41P/Tuttle-Giacobini-Kresak
RA: 02h 27m 37s
Dec: +06° 00’ 26”
Simplified high-resolution deep sky chart showing the current position of comet 41P/Tuttle-Giacobini-Kresak. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

02h 28m 58s
+06° 07’ 14”
22h 59m 55s
01h 28m 53s

J2000

02h 27m 37s
+06° 00’ 26”

Additional Information

Cetus
n/a
n/a
n/a
n/a
23.68

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.

Rise and Set Times

The following table lists today's rise, transit and set times of comet 41P/Tuttle-Giacobini-Kresak from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 83.9°
Max altitude: 44.6°
Azimuth: 276.1°

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.

Distance from Earth

The distance of comet 41P/Tuttle-Giacobini-Kresak from Earth is currently 782,057,175.0 kilometers, equivalent to 5.2277293209 Astronomical Units. Light takes 43m 28.662s to travel from comet 41P/Tuttle-Giacobini-Kresak and arrive to us.

782,057,175.0
5.2277293209
43m 28.662s

The following graph shows the distance of comet 41P/Tuttle-Giacobini-Kresak from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of comet 41P/Tuttle-Giacobini-Kresak from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 41P/Tuttle-Giacobini-Kresak from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet 41P/Tuttle-Giacobini-Kresak to Earth happened on Saturday 1 April 2017 at a distance of 0.141998 Astronomical Units, or 21,242,660 kilometers:

Saturday 1 April 2017
21,242,660
0.141998

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

Light Curve

The following chart shows the light curve of comet 41P/Tuttle-Giacobini-Kresak, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of comet 41P/Tuttle-Giacobini-Kresak as a function of time

Orbital Elements

The following table lists the orbital elements of comet 41P/Tuttle-Giacobini-Kresak at epoch April, 13 2017 00:00 UTC (JD: 2457857.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.66127330
Orbit inclination i 9.22846574°
Perihelion distance q 1.04504276 AU
156,336,171 km
Aphelion distance Q 5.12537585 AU
766,745,315 km
Semi-major axis a 3.08520930 AU
461,540,743 km
Orbital period period 5.4192 years
1,979.3627 days
Date of perihelion transit Tp April 12, 2017
2,457,856.2530 JD
Next perihelion transit September 13, 2022
2,459,835.6157 JD
Argument of perihelion peri 62.16674348896°
Longitude of the ascending node node 141.05897236084°
Mean anomaly M 0.22680168832125°
Mean motion n 0.18187673°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 41P/Tuttle-Giacobini-Kresak relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

15 Days Ephemeris

The following table lists the ephemerides of comet 41P/Tuttle-Giacobini-Kresak computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jul 10 2025 02h 26m 05s +06° 04’ 59” 23.73 Cetus
Jul 11 2025 02h 26m 31s +06° 05’ 29” 23.72 Cetus
Jul 12 2025 02h 26m 56s +06° 05’ 55” 23.72 Cetus
Jul 13 2025 02h 27m 20s +06° 06’ 19” 23.71 Cetus
Jul 14 2025 02h 27m 44s +06° 06’ 37” 23.70 Cetus
Jul 15 2025 02h 28m 07s +06° 06’ 53” 23.70 Cetus
Jul 16 2025 02h 28m 30s +06° 07’ 05” 23.69 Cetus
Jul 17 2025 02h 28m 52s +06° 07’ 13” 23.68 Cetus
Jul 18 2025 02h 29m 14s +06° 07’ 17” 23.68 Cetus
Jul 19 2025 02h 29m 35s +06° 07’ 17” 23.67 Cetus
Jul 20 2025 02h 29m 56s +06° 07’ 13” 23.66 Cetus
Jul 21 2025 02h 30m 16s +06° 07’ 06” 23.66 Cetus
Jul 22 2025 02h 30m 36s +06° 06’ 54” 23.65 Cetus
Jul 23 2025 02h 30m 54s +06° 06’ 39” 23.64 Cetus

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