Dwarf Planet Pluto
Pluto is a dwarf planet in the Kuiper Belt, a region of icy objects beyond the orbit of Neptune. It was discovered in 1930 by American astronomer Clyde Tombaugh and was considered the ninth planet in the solar system until it was reclassified as a dwarf planet in 2006. Pluto has a diameter of approximately 2,377 kilometers and a mass of 1.31 x 10^22 kilograms. Pluto has a highly elliptical orbit, with a period of 248 Earth years, and its orbit is tilted relative to the plane of the solar system. Pluto has five known moons, the largest of which is Charon, which is about half the size of Pluto itself. Pluto's surface is covered in nitrogen and methane ices, as well as frozen carbon monoxide and methane. The New Horizons spacecraft, which flew past Pluto in 2015, revealed a complex and diverse world with mountains, valleys, glaciers, and hazy skies. Pluto's atmosphere is thin and composed mainly of nitrogen, with traces of methane and carbon monoxide.
Dwarf Planet Pluto is currently in the constellation of Sagittarius. The current Right Ascension of Dwarf Planet Pluto is 20h 01m 02s and the Declination is -23° 19’ 10” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom ). The current magnitude of Dwarf Planet Pluto is 14.46 (JPL).
Today's rise, transit and set times of Dwarf Planet Pluto from Greenwich, United Kingdom (all times relative to the local timezone Europe/London):
- Pluto is below the horizon from Greenwich, United Kingdom .
- Given its current magnitude, Pluto is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.
- Go to interactive sky chart
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Dwarf Planet Pluto Position and Finder Charts
Below we provide Dwarf Planet Pluto 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.
Field of view: 50x30 degrees
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Field of view: 10x6 degrees
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Higher precision deep sky finder chart, 60 arcmin wide, showing where Dwarf Planet Pluto is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Dwarf Planet Pluto?, a page that provides all the information needed to find Dwarf Planet Pluto in the sky and additional links to sky charts.
Dwarf Planet Pluto Distance from Earth
The distance of Dwarf Planet Pluto from Earth is currently 5,152,855,094 kilometers, equivalent to 34.444709 Astronomical Units. Light takes 4 hours, 46 minutes and 28.0745 seconds to travel from Dwarf Planet Pluto and arrive to us.
The following chart shows the distance of Dwarf Planet Pluto 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 Pluto from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach of Dwarf Planet Pluto to Earth
Between 1 January 1600 and 30 December 2499, the closest approach of Dwarf Planet Pluto to Earth happens on Sat May 12 2238 at a distance of 28.676624 Astronomical Units, or 4,289,961,948 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Dwarf Planet Pluto Brightness and Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Dwarf Planet Pluto, 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.
Dwarf Planet Pluto Orbital Elements
The following table lists the orbital elements of Dwarf Planet Pluto at epoch 21 September 2006 00:00 UTC (JD: 2454000.5). Source: JPL Small-Body Database
Element | Symbol | Value |
---|---|---|
Orbit eccentricity | e | 0.25024871 |
Orbit inclination | i | 17.08900092° |
Perihelion distance | q | 29.57399177 AU 4,424,206,206 km |
Aphelion distance | Q |
49.31614768 AU 7,377,590,699 km |
Semi-major axis | a |
39.44506973 AU 5,900,898,452 km |
Orbital period | period |
247.7407 years 90,487.2769 days |
Date of perihelion transit | Tp | 1989-May-08 00:42:12 2,447,654.5293 JD |
Next perihelion transit | 2237-Feb-04 07:20 2,538,141.8062 JD |
|
Argument of perihelion | peri | 112.59714167749° |
Longitude of the ascending node | node | 110.37695795541° |
Mean anomaly | M | 25.247189712188° |
Mean motion | n | 0.00397846°/day |
Dwarf Planet Pluto Physical Data
The following shows the known values of the most important physical parameters of Dwarf Planet Pluto. Source: JPL Small-Body Database
Physical Parameter | Value | Relative to Earth |
---|---|---|
Diameter | 2302 km | 0.1807 |
Mass | 0.01309 x 1024 kg | 0.0022 |
Density | 2.05 gr/cm3 | 0.3718 |
Escape Velocity | 1.23 km/s | 0.1099 |
Sideral Rotation | -153.2928 hours | -6.4047 |
Absolute Magnitude | -1 | |
Geometric Albedo | 0.3 |
Dwarf Planet Pluto 15 Days Ephemeris
The following table lists the ephemerides of Dwarf Planet Pluto computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Dwarf Planet Pluto in our Online Planetarium at the chosen date.
Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
---|---|---|---|---|
2023 Sep 20 | 20h 01m 18s | -23° 18’ 20” | 14.45 | Sagittarius |
2023 Sep 21 | 20h 01m 15s | -23° 18’ 28” | 14.45 | Sagittarius |
2023 Sep 22 | 20h 01m 13s | -23° 18’ 34” | 14.45 | Sagittarius |
2023 Sep 23 | 20h 01m 10s | -23° 18’ 42” | 14.45 | Sagittarius |
2023 Sep 24 | 20h 01m 09s | -23° 18’ 48” | 14.45 | Sagittarius |
2023 Sep 25 | 20h 01m 06s | -23° 18’ 55” | 14.46 | Sagittarius |
2023 Sep 26 | 20h 01m 05s | -23° 19’ 00” | 14.46 | Sagittarius |
2023 Sep 27 | 20h 01m 04s | -23° 19’ 06” | 14.46 | Sagittarius |
2023 Sep 28 | 20h 01m 01s | -23° 19’ 12” | 14.46 | Sagittarius |
2023 Sep 29 | 20h 01m 00s | -23° 19’ 17” | 14.46 | Sagittarius |
2023 Sep 30 | 20h 00m 59s | -23° 19’ 21” | 14.46 | Sagittarius |
2023 Oct 01 | 20h 00m 57s | -23° 19’ 26” | 14.46 | Sagittarius |
2023 Oct 02 | 20h 00m 56s | -23° 19’ 28” | 14.47 | Sagittarius |
2023 Oct 03 | 20h 00m 56s | -23° 19’ 32” | 14.47 | Sagittarius |