Comet 11P/Tempel-Swift-LINEAR
Comet 11P/Tempel-Swift-LINEAR is in the constellation of
Sagittarius,
at a distance of
Finder Charts
View interactive star map
High precision deep sky finder chart, 60 arcmin wide, showing where Comet 11P/Tempel-Swift-LINEAR is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet 11P/Tempel-Swift-LINEAR?, a page that provides all the information needed to find Comet 11P/Tempel-Swift-LINEAR in the sky and additional links to sky charts.
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 11P/Tempel-Swift-LINEAR from Greenwich, UK (all times relative to the local timezone Europe/London):
- 11P/Tempel-Swift-LINEAR is below the horizon from Greenwich, UK.
- Given its current magnitude, 11P/Tempel-Swift-LINEAR 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.
Distance from Earth
The distance of Comet 11P/Tempel-Swift-LINEAR from Earth is currently
The following chart shows the distance of Comet 11P/Tempel-Swift-LINEAR 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 11P/Tempel-Swift-LINEAR from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2000 and 31 December 2099, the closest approach of Comet 11P/Tempel-Swift-LINEAR to Earth happens on Thu Nov 12 2026 at a distance of 0.401211 Astronomical Units, or 60,020,365 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 11P/Tempel-Swift-LINEAR, 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 11P/Tempel-Swift-LINEAR at epoch 01 November 2019 00:00 UTC (JD: 2458789.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.57742214 |
| Orbit inclination | i | 14.43558223° |
| Perihelion distance | q | 1.38970845 AU 207,897,426 km |
| Aphelion distance | Q |
5.18758094 AU 776,051,064 km |
| Semi-major axis | a |
3.28864470 AU 491,974,245 km |
| Orbital period | period |
5.9639 years 2,178.3309 days |
| Date of perihelion transit | Tp | 2020-Nov-26 00:20:20 2,459,179.5141 JD |
| Next perihelion transit | 2026-Nov-13 08:16 2,461,357.8451 JD |
|
| Argument of perihelion | peri | 167.76737396335° |
| Longitude of the ascending node | node | 238.98702367228° |
| Mean anomaly | M | 295.54464870958° |
| Mean motion | n | 0.16526415°/day |
View Comet 11P/Tempel-Swift-LINEAR in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Comet 11P/Tempel-Swift-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 |
|---|---|---|---|---|
| 2025 May 09 | 17h 55m 43s | -16° 57’ 09” | 30.38 | Sagittarius |
| 2025 May 10 | 17h 55m 16s | -16° 54’ 26” | 30.37 | Sagittarius |
| 2025 May 11 | 17h 54m 47s | -16° 51’ 43” | 30.35 | Sagittarius |
| 2025 May 12 | 17h 54m 18s | -16° 49’ 01” | 30.33 | Sagittarius |
| 2025 May 13 | 17h 53m 47s | -16° 46’ 18” | 30.32 | Sagittarius |
| 2025 May 14 | 17h 53m 16s | -16° 43’ 34” | 30.30 | Sagittarius |
| 2025 May 15 | 17h 52m 43s | -16° 40’ 51” | 30.29 | Sagittarius |
| 2025 May 16 | 17h 52m 10s | -16° 38’ 09” | 30.27 | Sagittarius |
| 2025 May 17 | 17h 51m 35s | -16° 35’ 26” | 30.25 | Sagittarius |
| 2025 May 18 | 17h 51m 00s | -16° 32’ 43” | 30.24 | Sagittarius |
| 2025 May 19 | 17h 50m 24s | -16° 30’ 00” | 30.22 | Sagittarius |
| 2025 May 20 | 17h 49m 47s | -16° 27’ 19” | 30.21 | Sagittarius |
| 2025 May 21 | 17h 49m 09s | -16° 24’ 36” | 30.19 | Sagittarius |
| 2025 May 22 | 17h 48m 31s | -16° 21’ 55” | 30.18 | Sagittarius |
Additional Resources on TheSkyLive
- Comet 11P/Tempel-Swift-LINEAR: Complete reference information on TheSkyLive.com
- Where is Comet 11P/Tempel-Swift-LINEAR?: Key information on locating Comet 11P/Tempel-Swift-LINEAR in the sky.
- Distance from Earth: Find out how far Comet 11P/Tempel-Swift-LINEAR is from Earth right now.
- How Bright is Comet 11P/Tempel-Swift-LINEAR?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Comet 11P/Tempel-Swift-LINEAR's rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of Comet 11P/Tempel-Swift-LINEAR's position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days Comet 11P/Tempel-Swift-LINEAR's computed ephemeris.
- Orbital elements: information about Comet 11P/Tempel-Swift-LINEAR orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of Comet 11P/Tempel-Swift-LINEAR with respect to the major Solar System objects.