Where is it now
- Distance from Sun
- 0.727 AU
- True anomaly
- 223.18°
- Distance from Earth
- 0.354 AU
- As of
- 2 October 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 14h 26m 34s
- Declination
- -21° 51′ 06″
- Constellation
- Libra
- Distance from Earth
- 0.35 AU
- Elongation from the Sun
- 31.92° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
From your location
See how high it is right now, whether it's up after dark, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 0.723 AU
- Eccentricity
- 0.0068
- Inclination
- 3.39°
- Orbital period
- 224.7 days
- Perihelion
- 0.718 AU
- Aphelion
- 0.728 AU
- Longitude of ascending node
- 76.68°
- Argument of periapsis
- 54.88°
- Epoch · J2000
- J2000
Physical properties
- Mean radius
- 6,052 km
- Equatorial radius
- 6,052 km
- Polar radius
- 6,052 km
- Mass
- 4.867 × 10²⁴ kg
- Density
- 5.243 g/cm³
- Rotation period
- -243.03 days
- Axial tilt
- 177.36°
- Surface gravity
- 8.87 m/s²
- Escape velocity
- 10.36 km/s
- GM
- 324,860 km³/s²
- Ellipticity
- 0
- J₂ · × 10⁻⁶
- 4.46
- Moment of inertia · I/MR²
- 0.337
- Length of day
- 116.75 days
- Synodic period
- 583.9 days
- Mean orbital speed
- 35.02 km/s
- Black-body temperature
- 226.6 K
- Solar irradiance
- 2,601.3 W/m²
Visual & observation
- Geometric albedo
- 0.689
- Bond albedo
- 0.77
- V(1,0) magnitude
- -4.38
- Representative colour
- #E8B873
Atmosphere
- Surface pressure · 92 bars
- 92 bar
- Temperature · 737 K (464 C)
- 737 K
- Density
- 65 kg/m³
- Scale height
- 15.9 km
- Mean molecular weight
- 43.45
- Winds
- 0.3 to 1.0 m/s (surface)
Composition by volume
- Carbon Dioxide (CO2) 96.5 %
- Nitrogen (N2) 3.5 %
- Sulfur Dioxide (SO2) 150 ppm
- Argon (Ar) 70 ppm
- Water (H2O) 20 ppm
- Carbon Monoxide (CO) 17 ppm
- Helium (He) 12 ppm
- Neon (Ne) 7 ppm
Source: NASA Planetary Fact Sheet.
Sources
- orbital elements: NASA Planetary Fact Sheet / JPL keplerian elements
- physical properties: NASA Planetary Fact Sheet
- visual properties: NASA Planetary Fact Sheet
- physical properties: NASA Planetary Fact Sheet
- visual properties: NASA Planetary Fact Sheet
- atmospheres: NASA Planetary Fact Sheet