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Jul 11, 2016 · Neptune is about 2.8 billion miles from the sun. That's about 30 times farther than the distance from Earth to the sun. Clouds of dust and gas spewing from one of Triton's powerful cryogeysers are partially obscuring a tiny sun, now but one-thirtieth the size as seen from Earth.
How Bright Is the Sun on Other Planets? By Dean Clark. How strong is the Sun on Mars? How much sunlight reaches Saturn or Neptune? Scientists rely on a powerful mathematical formula to find out.
- Why is Neptune blue? The planet's cloud cover has an especially vivid blue tint that is partly due to an as-yet-unidentified compound and the result of the absorption of red light by methane in the planet's mostly hydrogen-helium atmosphere.
- Neptune FAQs answered by an expert. We asked planetary scientist Dr Michael Roman a few frequently asked questions about Neptune. Dr Michael Roman. Dr Michael Roman is an expert on the giant planets of the solar system.
- Does Neptune have rings? Neptune is surrounded by unusual rings, which aren't uniform but possess bright thick clumps of dust called arcs. There are at least 5 rings around Neptune — called Galle, Leverrier, Lassell, Arago, and Adams — and they are considered relatively young and short-lived.
- Neptune by the numbers. Atmospheric composition (by volume): 80% hydrogen, 19% helium, 1.5% methane. Magnetic field: Roughly 27 times more powerful than Earth's.
The warm light we see here on our home planet is roughly 900 times as bright as sunlight on Neptune. Namesake. The ice giant Neptune was the first planet located through mathematical calculations. Using predictions made by Urbain Le Verrier, Johann Galle discovered the planet in 1846.
- Neptune
- Additional Information
- Distance from Earth
- Closest Approach
- Light Curve
- 15 Days Ephemeris
- Additional Resources
Neptune is in the constellation of Pisces, at a distance of 4,341,840,134.0 kilometers from Earth. The current Right Ascension is 23h 53m 51s and the Declination is -02° 06’ 27” (apparent coordinates). The magnitude of Neptune is 7.69 (data provided by JPL Horizons). Neptune is the eighth and farthest planet from the sun, and it is the fourth-large...
Today's rise, transit and set times of Neptune 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...
The distance of Neptune from Earth is currently 4,341,840,134.0 kilometers, equivalent to 29.0234086467 Astronomical Units. Light takes 4h 1m 22.820sto travel from Neptune and arrive to us. The following chart shows the distance of Neptune from Earth as a function of time. In the chart the distance data is measured in Astronomical Unitsand sampled ...
Between 1 January 1600 and 30 December 2499, the closest approach of Neptune to Earth happens on Thu Nov 8 2373 at a distance of 28.806366 Astronomical Units, or 4,309,370,997 kilometers: NOTE: values for the closest approach are computed with a sampling interval of 1 day.
The following chart is the predicted light curve (visual magnitude as a function of time) of Neptune, according to the most recent ephemeridesdata. 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 discrepanci...
The following table lists the ephemeridesof Neptune computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
Position and finder charts (see also Where is Neptune?)Distance from Earth (see also How far is Neptune from Earth?)Brightness (see also How bright is Neptune?)Neptune is so far from the Sun that high noon on the big blue planet would seem like dim twilight to us. The warm light we see here on our home planet is roughly 900 times as bright as sunlight on Neptune.
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How much sunlight does Neptune get?
Sunlight travels 93 million miles from the Sun to Earth in 8.3 minutes. The Sun is 8.3 light minutes away. [Sun enters view, in center of planets’ orbits. Blue circle marking the Sun is labeled “8.3 light minutes.”] Neptune is 4 light hours away. [All planets’ orbits in view. Blue circle marking Neptune is labeled “4 light hours.”]
