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Comet 104P/Kowal 2

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Comet 104P/Kowal 2 Position

Comet 104P/Kowal 2 is currently in the constellation of Ophiucus. The current Right Ascension is 16h 50m 29s and the Declination is -17° 55’ 20”.

16h 50m 29s
-17° 55’ 20”

Simplified sky chart showing where Comet 104P/Kowal 2 is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet 104P/Kowal 2 in Ophiucus on September, 21 2019
Field of view: 60x30 degrees
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 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Comet 104P/Kowal 2 is right now (view fullscreen)

104P/Kowal 2
RA: 16h 50m 29s
Dec: -17° 55’ 20”
Deep sky finder chart for Comet 104P/Kowal 2
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 104P/Kowal 2?, a page that provides all the information needed to find Comet 104P/Kowal 2 in the sky and additional links to sky charts.

Comet 104P/Kowal 2 Distance

The distance of Comet 104P/Kowal 2 from Earth is currently 801,675,189 kilometers, equivalent to 5.358868 Astronomical Units. Light takes 44 minutes and 34.1006 seconds to travel from Comet 104P/Kowal 2 and arrive to us.

44 minutes and 34.1006 seconds

The following chart shows the distance of Comet 104P/Kowal 2 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 104P/Kowal 2 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 104P/Kowal 2 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 104P/Kowal 2 to Earth

Between January 2013 and December 2100 the closest approach of Comet 104P/Kowal 2 to Earth happens on Sun Jan 2 2061 at a distance of 0.08765315 Astronomical Units, or 13,112,724 kilometers:

Sun Jan 2 2061

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

Comet 104P/Kowal 2 brightness

The current visual magnitude of Comet 104P/Kowal 2 is 28.51.


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 behvior 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 104P/Kowal 2, 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 104P/Kowal 2 between January 2013 and December 2100

Comet 104P/Kowal 2 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 104P/Kowal 2 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.9°
Max altitude: 20.6°
Azimuth: 252.1°
Comet 104P/Kowal 2 is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet 104P/Kowal 2 touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 104P/Kowal 2 Orbital Elements

The following table lists the orbital elements of Comet 104P/Kowal 2 at epoch 30 July 2016 00:00 UTC (JD: 2457600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.63866959
Orbit inclination i 10.25426992°
Perihelion distance q 1.17912244 AU
176,394,207 km
Aphelion distance Q 5.34743828 AU
799,965,382 km
Semi-major axis a 3.26328036 AU
488,179,795 km
Orbital period period 5.9000 years
2,153.1784 days
Date of perihelion transit Tp 2016-Mar-28 03:38:15
2,457,475.6516 JD
Next perihelion transit 2022-Feb-18 07:55
2,459,628.8299 JD
Argument of perihelion peri 200.67394770051°
Longitude of the ascending node node 235.42076373542°
Mean anomaly M 20.873994859479°
Mean motion n 0.16719469°/day

Visualization of Comet 104P/Kowal 2 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 104P/Kowal 2 with respect of the Sun and the orbits of the major planets. The position of Comet 104P/Kowal 2 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 104P/Kowal 2
View Comet 104P/Kowal 2 in the 3D Solar System Simulator

Comet 104P/Kowal 2 15 Days Ephemeris

The following table lists the ephemerides of Comet 104P/Kowal 2 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 104P/Kowal 2 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Sep 14 16h 48m 07s -17° 46’ 49” 28.48 Ophiucus
2019 Sep 15 16h 48m 24s -17° 47’ 57” 28.48 Ophiucus
2019 Sep 16 16h 48m 43s -17° 49’ 08” 28.49 Ophiucus
2019 Sep 17 16h 49m 02s -17° 50’ 18” 28.49 Ophiucus
2019 Sep 18 16h 49m 23s -17° 51’ 30” 28.50 Ophiucus
2019 Sep 19 16h 49m 42s -17° 52’ 42” 28.50 Ophiucus
2019 Sep 20 16h 50m 03s -17° 53’ 56” 28.50 Ophiucus
2019 Sep 21 16h 50m 26s -17° 55’ 09” 28.51 Ophiucus
2019 Sep 22 16h 50m 48s -17° 56’ 22” 28.51 Ophiucus
2019 Sep 23 16h 51m 11s -17° 57’ 37” 28.52 Ophiucus
2019 Sep 24 16h 51m 34s -17° 58’ 51” 28.52 Ophiucus
2019 Sep 25 16h 52m 00s -18° 00’ 07” 28.52 Ophiucus
2019 Sep 26 16h 52m 23s -18° 01’ 23” 28.53 Ophiucus
2019 Sep 27 16h 52m 50s -18° 02’ 39” 28.53 Ophiucus