Comet 45P/Honda-Mrkos-Pajdusakova
Comet 45P/Honda-Mrkos-Pajdusakova is in the constellation of Ophiuchus, at a distance of
Finder Charts
The sky charts below show, at different resolutions, the position of comet 45P/Honda-Mrkos-Pajdusakova in the sky. Click on each chart to access the interactive star map tool.
The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 45P/Honda-Mrkos-Pajdusakova 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.
Equatorial Coordinates
Apparent
J2000
Additional Information
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 45P/Honda-Mrkos-Pajdusakova from Greenwich, UK (all times relative to the local timezone Europe/London):
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 45P/Honda-Mrkos-Pajdusakova from Earth is currently
The following graph shows the distance of comet 45P/Honda-Mrkos-Pajdusakova 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.
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 45P/Honda-Mrkos-Pajdusakova 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 45P/Honda-Mrkos-Pajdusakova to Earth happened on Monday 15 August 2011 at a distance of 0.061560 Astronomical Units, or 9,209,242 kilometers:
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 45P/Honda-Mrkos-Pajdusakova, 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.
Orbital Elements
The following table lists the orbital elements of comet 45P/Honda-Mrkos-Pajdusakova at epoch August, 13 2017 00:00 UTC (JD: 2457979.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.82399608 |
| Orbit inclination | i | 4.24817054° |
| Perihelion distance | q | 0.53265015 AU 79,683,329 km |
| Aphelion distance | Q |
5.52005760 AU 825,788,865 km |
| Semi-major axis | a |
3.02635388 AU 452,736,097 km |
| Orbital period | period |
5.2649 years 1,922.9943 days |
| Date of perihelion transit | Tp | December 31, 2016 2,457,753.7841 JD |
| Next perihelion transit | April 7, 2022 2,459,676.7784 JD |
|
| Argument of perihelion | peri | 326.34419840517° |
| Longitude of the ascending node | node | 88.934602450647° |
| Mean anomaly | M | 42.255823560302° |
| Mean motion | n | 0.18720805°/day |
Orbit Visualization
The following chart is a 3D animated visualization of the orbit of comet 45P/Honda-Mrkos-Pajdusakova 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 45P/Honda-Mrkos-Pajdusakova 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 |
|---|---|---|---|---|
| Nov 27 2025 | 16h 21m 39s | -20° 13’ 12” | 33.20 | Scorpius |
| Nov 28 2025 | 16h 22m 28s | -20° 15’ 16” | 33.20 | Scorpius |
| Nov 29 2025 | 16h 23m 18s | -20° 17’ 21” | 33.19 | Scorpius |
| Nov 30 2025 | 16h 24m 07s | -20° 19’ 23” | 33.19 | Scorpius |
| Dec 01 2025 | 16h 24m 56s | -20° 21’ 25” | 33.18 | Ophiuchus |
| Dec 02 2025 | 16h 25m 46s | -20° 23’ 26” | 33.17 | Ophiuchus |
| Dec 03 2025 | 16h 26m 35s | -20° 25’ 26” | 33.17 | Ophiuchus |
| Dec 04 2025 | 16h 27m 25s | -20° 27’ 24” | 33.16 | Ophiuchus |
| Dec 05 2025 | 16h 28m 15s | -20° 29’ 22” | 33.15 | Ophiuchus |
| Dec 06 2025 | 16h 29m 04s | -20° 31’ 19” | 33.15 | Ophiuchus |
| Dec 07 2025 | 16h 29m 54s | -20° 33’ 14” | 33.14 | Ophiuchus |
| Dec 08 2025 | 16h 30m 44s | -20° 35’ 08” | 33.13 | Ophiuchus |
| Dec 09 2025 | 16h 31m 33s | -20° 37’ 01” | 33.12 | Ophiuchus |
| Dec 10 2025 | 16h 32m 23s | -20° 38’ 54” | 33.12 | Ophiuchus |
Additional Resources on TheSkyLive
- Comet 45P/Honda-Mrkos-Pajdusakova: Complete reference information on TheSkyLive.com.
- Where is comet 45P/Honda-Mrkos-Pajdusakova?: Key information on where to find comet 45P/Honda-Mrkos-Pajdusakova in the sky.
- Distance of comet 45P/Honda-Mrkos-Pajdusakova from Earth: Find out how far comet 45P/Honda-Mrkos-Pajdusakova is from Earth right now.
- How Bright is comet 45P/Honda-Mrkos-Pajdusakova?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of comet 45P/Honda-Mrkos-Pajdusakova from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of comet 45P/Honda-Mrkos-Pajdusakova's position in the sky.
- Live Position Tracker: High precision real time tracker of comet 45P/Honda-Mrkos-Pajdusakova's position using deep space imagery.
- Ephemeris: 15 days comet 45P/Honda-Mrkos-Pajdusakova's computed ephemeris.
- Orbital elements: Information about comet 45P/Honda-Mrkos-Pajdusakova orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of comet 45P/Honda-Mrkos-Pajdusakova with respect to the major Solar System objects.