❤ Support this Project
Comet 18D/Perrine-Mrkos (Lost) Position Calculator
Compute the position of Comet 18D/Perrine-Mrkos (Lost) for any date and time between 1 January 2013 and 30 December 2100 and visualize the results on an interactive sky map.
Comet 18D/Perrine-Mrkos (Lost)
Comet 18D/Perrine-Mrkos (Lost) is in the constellation of
Pegasus,
at a distance of
View interactive star map
Celestial 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
Today's rise, transit and set times of Comet 18D/Perrine-Mrkos (Lost) from Greenwich, UK (all times relative to the local timezone Europe/London):
- 18D/Perrine-Mrkos (Lost) is above the horizon from Greenwich, UK.
- Right now it is placed in the South-West direction at an altitude of 45.05° above the horizon.
- Given its current magnitude, 18D/Perrine-Mrkos (Lost) is visible only through long exposure photography.
- 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.
Finder Charts
High precision deep sky finder chart, 60 arcmin wide, showing where Comet 18D/Perrine-Mrkos (Lost) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet 18D/Perrine-Mrkos (Lost)?, a page that provides all the information needed to find Comet 18D/Perrine-Mrkos (Lost) in the sky and additional links to sky charts.
Distance from Earth
The distance of Comet 18D/Perrine-Mrkos (Lost) from Earth is currently
The following chart shows the distance of Comet 18D/Perrine-Mrkos (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.
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 18D/Perrine-Mrkos (Lost) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2013 and 30 December 2100, the closest approach of Comet 18D/Perrine-Mrkos (Lost) to Earth happens on Sun Nov 28 2032 at a distance of 0.784610 Astronomical Units, or 117,375,995 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 18D/Perrine-Mrkos (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.
Orbital Elements
The following table lists the orbital elements of Comet 18D/Perrine-Mrkos (Lost) at epoch 01 January 1970 00:00 UTC (JD: 2440240.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.64258098 |
| Orbit inclination | i | 17.75898277° |
| Perihelion distance | q | 1.27224808 AU 190,325,604 km |
| Aphelion distance | Q |
5.84683635 AU 874,674,270 km |
| Semi-major axis | a |
3.55954221 AU 532,499,937 km |
| Orbital period | period |
6.7158 years 2,452.9554 days |
| Date of perihelion transit | Tp | 1968-Nov-01 13:00:40 2,440,162.0421 JD |
| Next perihelion transit | 1975-Jul-21 11:56 2,442,614.9975 JD |
|
| Argument of perihelion | peri | 166.05041712495° |
| Longitude of the ascending node | node | 240.87554663092° |
| Mean anomaly | M | 11.514613023145° |
| Mean motion | n | 0.14676174°/day |
Orbit Visualization
View Comet 18D/Perrine-Mrkos (Lost) in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Comet 18D/Perrine-Mrkos (Lost) 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 |
|---|---|---|---|---|
| 2024 Jul 22 | 21h 41m 55s | +15° 17’ 15” | 19.43 | Pegasus |
| 2024 Jul 23 | 21h 41m 30s | +15° 26’ 26” | 19.39 | Pegasus |
| 2024 Jul 24 | 21h 41m 04s | +15° 35’ 24” | 19.35 | Pegasus |
| 2024 Jul 25 | 21h 40m 36s | +15° 44’ 09” | 19.31 | Pegasus |
| 2024 Jul 26 | 21h 40m 07s | +15° 52’ 39” | 19.27 | Pegasus |
| 2024 Jul 27 | 21h 39m 36s | +16° 00’ 56” | 19.23 | Pegasus |
| 2024 Jul 28 | 21h 39m 04s | +16° 08’ 57” | 19.19 | Pegasus |
| 2024 Jul 29 | 21h 38m 31s | +16° 16’ 42” | 19.15 | Pegasus |
| 2024 Jul 30 | 21h 37m 57s | +16° 24’ 12” | 19.11 | Pegasus |
| 2024 Jul 31 | 21h 37m 22s | +16° 31’ 25” | 19.07 | Pegasus |
| 2024 Aug 01 | 21h 36m 45s | +16° 38’ 21” | 19.03 | Pegasus |
| 2024 Aug 02 | 21h 36m 07s | +16° 45’ 00” | 18.99 | Pegasus |
| 2024 Aug 03 | 21h 35m 28s | +16° 51’ 20” | 18.95 | Pegasus |
| 2024 Aug 04 | 21h 34m 48s | +16° 57’ 23” | 18.91 | Pegasus |
Additional Resources
- Position and finder charts (see also Where is Comet 18D/Perrine-Mrkos (Lost)?)
- Distance from Earth (see also How far is Comet 18D/Perrine-Mrkos (Lost) from Earth?)
- When does Comet 18D/Perrine-Mrkos (Lost) rise and set?
- Brightness (see also How bright is Comet 18D/Perrine-Mrkos (Lost)?)
- Orbital elements. Detailed information about Comet 18D/Perrine-Mrkos (Lost) orbital parameters.
- Interactive orbit visualization. 3d visualization showing the orbit of Comet 18D/Perrine-Mrkos (Lost) with respect to the major Solar System objects.
- 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet 18D/Perrine-Mrkos (Lost) for the past and next 7 days.
- Interactive sky chart. An online planetarium application that shows where to locate Comet 18D/Perrine-Mrkos (Lost) in the sky from your location.
- Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet 18D/Perrine-Mrkos (Lost) with your telescope or on your astrophotographies.