Comet 354P/LINEAR
Comet 354P/LINEAR is in the constellation of Ophiuchus, at a distance of
Finder Charts
The sky charts below show, at different resolutions, the position of comet 354P/LINEAR 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 354P/LINEAR 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 354P/LINEAR 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 354P/LINEAR from Earth is currently
The following graph shows the distance of comet 354P/LINEAR 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 354P/LINEAR 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, 2013 and December 30, 2100, the closest approach of comet 354P/LINEAR to Earth will happen on Monday 28 December 2054 at a distance of 1.023462 Astronomical Units, or 153,107,675 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 354P/LINEAR, 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 354P/LINEAR at epoch January, 11 2014 00:00 UTC (JD: 2456669.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.12497107 |
| Orbit inclination | i | 5.25593231° |
| Perihelion distance | q | 2.00355966 AU 299,728,259 km |
| Aphelion distance | Q |
2.57585386 AU 385,342,254 km |
| Semi-major axis | a |
2.28970676 AU 342,535,256 km |
| Orbital period | period |
3.4648 years 1,265.5177 days |
| Date of perihelion transit | Tp | May 22, 2013 2,456,434.5028 JD |
| Next perihelion transit | November 7, 2016 2,457,700.0206 JD |
|
| Argument of perihelion | peri | 132.74246731196° |
| Longitude of the ascending node | node | 320.23521080286° |
| Mean anomaly | M | 66.849301797413° |
| Mean motion | n | 0.28446856°/day |
Orbit Visualization
The following chart is a 3D animated visualization of the orbit of comet 354P/LINEAR 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 354P/LINEAR 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 29 2025 | 17h 48m 07s | -29° 55’ 27” | 20.59 | Sagittarius |
| Jun 30 2025 | 17h 47m 01s | -29° 53’ 13” | 20.59 | Sagittarius |
| Jul 01 2025 | 17h 45m 55s | -29° 50’ 55” | 20.60 | Sagittarius |
| Jul 02 2025 | 17h 44m 49s | -29° 48’ 30” | 20.60 | Ophiuchus |
| Jul 03 2025 | 17h 43m 45s | -29° 46’ 02” | 20.61 | Ophiuchus |
| Jul 04 2025 | 17h 42m 42s | -29° 43’ 28” | 20.61 | Ophiuchus |
| Jul 05 2025 | 17h 41m 40s | -29° 40’ 49” | 20.62 | Ophiuchus |
| Jul 06 2025 | 17h 40m 39s | -29° 38’ 06” | 20.62 | Ophiuchus |
| Jul 07 2025 | 17h 39m 39s | -29° 35’ 20” | 20.63 | Ophiuchus |
| Jul 08 2025 | 17h 38m 41s | -29° 32’ 29” | 20.63 | Ophiuchus |
| Jul 09 2025 | 17h 37m 44s | -29° 29’ 35” | 20.64 | Ophiuchus |
| Jul 10 2025 | 17h 36m 49s | -29° 26’ 37” | 20.65 | Ophiuchus |
| Jul 11 2025 | 17h 35m 55s | -29° 23’ 36” | 20.65 | Ophiuchus |
| Jul 12 2025 | 17h 35m 02s | -29° 20’ 33” | 20.66 | Ophiuchus |
Additional Resources on TheSkyLive
- Comet 354P/LINEAR: Complete reference information on TheSkyLive.com.
- Where is comet 354P/LINEAR?: Key information on where to find comet 354P/LINEAR in the sky.
- Distance of comet 354P/LINEAR from Earth: Find out how far comet 354P/LINEAR is from Earth right now.
- How Bright is comet 354P/LINEAR?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of comet 354P/LINEAR from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of comet 354P/LINEAR's position in the sky.
- Live Position Tracker: High precision real time tracker of comet 354P/LINEAR's position using deep space imagery.
- Ephemeris: 15 days comet 354P/LINEAR's computed ephemeris.
- Orbital elements: Information about comet 354P/LINEAR orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of comet 354P/LINEAR with respect to the major Solar System objects.