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Comet 75D/Kohoutek (Lost)

Comet 75D/Kohoutek (Lost) is currently in the constellation of Gemini. The current Right Ascension of Comet 75D/Kohoutek (Lost) is 06h 38m 16s and the Declination is +20° 52’ 33” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 75D/Kohoutek (Lost) is 15.26 (JPL).

Summary of key facts about Comet 75D/Kohoutek (Lost) [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]:

06h 38m 16s
+20° 52’ 33”
  • 75D/Kohoutek (Lost) is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-West direction at an altitude of 55° above the horizon.
  • Given its current magnitude, 75D/Kohoutek (Lost) is visible with the help of a telescope havng an aperture of 20 inches (500mm) or more.
  • See also 75D/Kohoutek (Lost) rise and set times.
  • 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.

Additional information about Comet 75D/Kohoutek (Lost) available on TheSkyLive:

Available Resources

Comet 75D/Kohoutek (Lost) Position and Finder Charts

Below we provide Comet 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost) in Gemini on May, 17 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 75D/Kohoutek (Lost) in Gemini on May, 17 2021
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 75D/Kohoutek (Lost) is right now. Click on the image to see a more detailed fullscreen tracker view.

75D/Kohoutek (Lost)
RA: 06h 38m 16s
Dec: +20° 52’ 33”
Deep sky finder chart for Comet 75D/Kohoutek (Lost)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 75D/Kohoutek (Lost)?, a page that provides all the information needed to find Comet 75D/Kohoutek (Lost) in the sky and additional links to sky charts.

Comet 75D/Kohoutek (Lost) Distance from Earth

The distance of Comet 75D/Kohoutek (Lost) from Earth is currently 375,515,702 kilometers, equivalent to 2.510167 Astronomical Units. Light takes 20 minutes and 52.5856 seconds to travel from Comet 75D/Kohoutek (Lost) and arrive to us.

20 minutes and 52.5856 seconds

The following chart shows the distance of Comet 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 75D/Kohoutek (Lost) to Earth

Between January 2013 and December 2100, the closest approach of Comet 75D/Kohoutek (Lost) to Earth happens on Thu Dec 28 2056 at a distance of 0.331356 Astronomical Units, or 49,570,104 kilometers:

Thu Dec 28 2056

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

Comet 75D/Kohoutek (Lost) brightness

The current visual magnitude of Comet 75D/Kohoutek (Lost) is 15.26.


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 75D/Kohoutek (Lost), 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 75D/Kohoutek (Lost) between January 2013 and December 2100

Comet 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 69.1°
Max altitude: 59.4°
Azimuth: 290.9°

The rise and set times are defined as the time at which the upper limb of Comet 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost) Orbital Elements

The following table lists the orbital elements of Comet 75D/Kohoutek (Lost) at epoch 16 June 1994 00:00 UTC (JD: 2449520.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.49630740
Orbit inclination i 5.90720926°
Perihelion distance q 1.78465694 AU
266,980,879 km
Aphelion distance Q 5.30163706 AU
793,113,617 km
Semi-major axis a 3.54314700 AU
530,047,248 km
Orbital period period 6.6700 years
2,436.0275 days
Date of perihelion transit Tp 1994-Jun-29 21:33:48
2,449,533.3985 JD
Next perihelion transit 2001-Feb-28 22:13
2,451,969.4260 JD
Argument of perihelion peri 175.80172466179°
Longitude of the ascending node node 269.68609454603°
Mean anomaly M 358.0938421757°
Mean motion n 0.14778158°/day

Visualization of Comet 75D/Kohoutek (Lost) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 75D/Kohoutek (Lost) with respect of the Sun and the orbits of the major planets. The position of Comet 75D/Kohoutek (Lost) 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 75D/Kohoutek (Lost)
View Comet 75D/Kohoutek (Lost) in the 3D Solar System Simulator

Comet 75D/Kohoutek (Lost) 15 Days Ephemeris

The following table lists the ephemerides of Comet 75D/Kohoutek (Lost) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 75D/Kohoutek (Lost) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 May 10 06h 17m 43s +21° 18’ 52” 15.15 Orion
2021 May 11 06h 20m 25s +21° 15’ 59” 15.16 Orion
2021 May 12 06h 23m 05s +21° 12’ 55” 15.18 Gemini
2021 May 13 06h 25m 46s +21° 09’ 42” 15.19 Gemini
2021 May 14 06h 28m 27s +21° 06’ 19” 15.21 Gemini
2021 May 15 06h 31m 08s +21° 02’ 48” 15.22 Gemini
2021 May 16 06h 33m 47s +20° 59’ 07” 15.24 Gemini
2021 May 17 06h 36m 28s +20° 55’ 18” 15.25 Gemini
2021 May 18 06h 39m 06s +20° 51’ 19” 15.27 Gemini
2021 May 19 06h 41m 45s +20° 47’ 11” 15.28 Gemini
2021 May 20 06h 44m 25s +20° 42’ 55” 15.30 Gemini
2021 May 21 06h 47m 03s +20° 38’ 29” 15.31 Gemini
2021 May 22 06h 49m 41s +20° 33’ 55” 15.33 Gemini
2021 May 23 06h 52m 18s +20° 29’ 12” 15.34 Gemini