We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
Space Probes » 

Pioneer 11

Altitude: -30.8°   Azimuth: 62.7°   Direction: East-North-East

Pioneer 11 was a space probe launched by NASA in 1973 with the goal of studying the outer Solar System. It was the second spacecraft to flyby Jupiter and the first to visit Saturn. After completing its mission, Pioneer 11 continued to transmit data until 1995, when it became too weak to communicate with Earth. It is currently traveling through space in the direction of the constellation Aquila.

Pioneer 11 is currently in the constellation of Scutum.

The current Right Ascension of Pioneer 11 is 18h 55m 17s and the Declination is -08° 57’ 43” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt).

18h 55m 17s
-08° 57’ 43”

Today's rise, transit and set times of Pioneer 11 from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 99.0°
Max altitude: 29.6°
Azimuth: 261.0°

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.

Available Resources

Pioneer 11 Position and Finder Charts

Below we provide Pioneer 11 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.

Finder chart of Pioneer 11 in Scutum on December,11 2023
Map showing Pioneer 11 in Scutum on December, 11 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of Pioneer 11
Map showing Pioneer 11 in Scutum on December, 11 2023
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Pioneer 11 is right now. Click on the image to see a more detailed fullscreen tracker view.

Pioneer 11
RA: 18h 55m 17s
Dec: -08° 57’ 43”
Deep sky finder chart for Pioneer 11
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Pioneer 11?, a page that provides all the information needed to find Pioneer 11 in the sky and additional links to sky charts.

Pioneer 11 Distance from Earth

The distance of Pioneer 11 from Earth is currently 16,793,917,374 kilometers, equivalent to 112.260404 Astronomical Units. Light takes 15 hours, 33 minutes and 38.4785 seconds to travel from Pioneer 11 and arrive to us.

15 hours, 33 minutes and 38.4785 seconds

The following chart shows the distance of Pioneer 11 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.

Chart of the distance of Pioneer 11 from Earth in Astronomical Units (au)

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 Pioneer 11 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Pioneer 11 to Earth

Between 1 January 2013 and 31 December 2049, the closest approach of Pioneer 11 to Earth happens on Mon Jun 10 2013 at a distance of 85.782159 Astronomical Units, or 12,832,828,327 kilometers:

Mon Jun 10 2013

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

Visualization of Pioneer 11 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Pioneer 11 with respect of the Sun and the orbits of the major planets. The position of Pioneer 11 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 Pioneer 11

Pioneer 11 15 Days Ephemeris

The following table lists the ephemerides of Pioneer 11 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Pioneer 11 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 Dec 04 18h 55m 03s -08° 57’ 36” N.A. Scutum
2023 Dec 05 18h 55m 05s -08° 57’ 38” N.A. Scutum
2023 Dec 06 18h 55m 06s -08° 57’ 38” N.A. Scutum
2023 Dec 07 18h 55m 09s -08° 57’ 39” N.A. Scutum
2023 Dec 08 18h 55m 10s -08° 57’ 41” N.A. Scutum
2023 Dec 09 18h 55m 13s -08° 57’ 42” N.A. Scutum
2023 Dec 10 18h 55m 14s -08° 57’ 42” N.A. Scutum
2023 Dec 11 18h 55m 17s -08° 57’ 42” N.A. Scutum
2023 Dec 12 18h 55m 18s -08° 57’ 43” N.A. Scutum
2023 Dec 13 18h 55m 20s -08° 57’ 43” N.A. Scutum
2023 Dec 14 18h 55m 23s -08° 57’ 43” N.A. Scutum
2023 Dec 15 18h 55m 26s -08° 57’ 43” N.A. Scutum
2023 Dec 16 18h 55m 27s -08° 57’ 43” N.A. Scutum
2023 Dec 17 18h 55m 30s -08° 57’ 43” N.A. Scutum