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public  Hongling, China Hongling, China  ⓘ
TimezoneAsia/Shanghai
Sunrise: 5:41 
Transit: 12:28 
Sunset: 19:15
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Comets » 

Comet 70P/Kojima

Below the horizon.  Rise: 20:56 | Tran: 2:19 | Set: 7:42
Alt: -38.46°   Az: 94.91°   Direction: East

Comet 70P/Kojima is in the constellation of Capricornus, at a distance of 660,044,744.0 kilometers from Earth. The current Right Ascension is 20h 47m 32s and the Declination is -18° 35’ 02” (apparent coordinates). The estimated magnitude of comet 70P/Kojima, computed using JPL Horizons's data, is 23.97).

Finder Charts

The sky charts below show, at different resolutions, the position of comet 70P/Kojima in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 70P/Kojima in the constellation of Capricornus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 70P/Kojima in the constellation of Capricornus 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 70P/Kojima 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.

70P/Kojima
RA: 20h 46m 05s
Dec: -18° 40’ 42”
Simplified high-resolution deep sky chart showing the current position of comet 70P/Kojima. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

20h 47m 32s
-18° 35’ 02”
15h 41m 35s
12h 29m 07s

J2000

20h 46m 05s
-18° 40’ 42”

Additional Information

Capricornus
n/a
n/a
n/a
n/a
23.97

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 70P/Kojima from Hongling, China (all times relative to the local timezone Asia/Shanghai):

Azimuth: 108.6°
Max altitude: 46.9°
Azimuth: 251.4°

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 70P/Kojima from Earth is currently 660,044,744.0 kilometers, equivalent to 4.4121265959 Astronomical Units. Light takes 36m 41.672s to travel from comet 70P/Kojima and arrive to us.

660,044,744.0
4.4121265959
36m 41.672s

The following graph shows the distance of comet 70P/Kojima 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 70P/Kojima 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 70P/Kojima 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 70P/Kojima to Earth will happen on Sunday 18 February 2029 at a distance of 1.158527 Astronomical Units, or 173,313,237 kilometers:

Sunday 18 February 2029
173,313,237
1.158527

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 70P/Kojima, 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 70P/Kojima as a function of time

Orbital Elements

The following table lists the orbital elements of comet 70P/Kojima at epoch April, 22 2015 00:00 UTC (JD: 2457135.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.45393951
Orbit inclination i 6.60013087°
Perihelion distance q 2.00658892 AU
300,181,430 km
Aphelion distance Q 5.34273937 AU
799,262,435 km
Semi-major axis a 3.67466414 AU
549,721,933 km
Orbital period period 7.0442 years
2,572.9118 days
Date of perihelion transit Tp October 20, 2014
2,456,951.1769 JD
Next perihelion transit November 5, 2021
2,459,524.0888 JD
Argument of perihelion peri 1.9565041130875°
Longitude of the ascending node node 119.2704666428°
Mean anomaly M 25.790353417002°
Mean motion n 0.13991929°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 70P/Kojima 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 70P/Kojima 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
Jun 27 2025 20h 50m 59s -18° 17’ 03” 24.00 Capricornus
Jun 28 2025 20h 50m 33s -18° 19’ 23” 24.00 Capricornus
Jun 29 2025 20h 50m 06s -18° 21’ 44” 24.00 Capricornus
Jun 30 2025 20h 49m 39s -18° 24’ 06” 23.99 Capricornus
Jul 01 2025 20h 49m 11s -18° 26’ 32” 23.99 Capricornus
Jul 02 2025 20h 48m 43s -18° 28’ 59” 23.98 Capricornus
Jul 03 2025 20h 48m 14s -18° 31’ 28” 23.98 Capricornus
Jul 04 2025 20h 47m 45s -18° 33’ 59” 23.97 Capricornus
Jul 05 2025 20h 47m 15s -18° 36’ 30” 23.97 Capricornus
Jul 06 2025 20h 46m 44s -18° 39’ 04” 23.97 Capricornus
Jul 07 2025 20h 46m 13s -18° 41’ 40” 23.96 Capricornus
Jul 08 2025 20h 45m 41s -18° 44’ 17” 23.96 Capricornus
Jul 09 2025 20h 45m 09s -18° 46’ 55” 23.96 Capricornus
Jul 10 2025 20h 44m 37s -18° 49’ 35” 23.95 Capricornus

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