|Help and Advice|
|Transit of Mercury 2016|
|Giving long exposures on a digital camera|
|Photographing star trails|
|Predicting the ISS and other satellites|
|Using a mirror to view a partial eclipse|
|Simple Guide to Viewing the Space Station|
|Choosing a Telescope|
|Tips when projecting the Sun|
|Starting to Use Your Telescope|
|Imaging with a DSLR through the telescope|
|Buying a telescope for a child|
|Photographing a partial eclipse|
Neptune from Voyager 2 Image: NASA
For part of its 248-year journey around the Sun, Pluto actually comes inside Neptune’s orbit. This meant that when Pluto was still a planet, Pluto would become the eighth planet and Neptune the ninth! Now that Pluto is not a planet it makes things much simpler!
Neptune is the eighth and last planet in the Solar System. It is an ice giant – a frozen gas giant – like Uranus. It looks a bit like Uranus too, though instead of a pale turquoise colour it is a rich blue, with white, wispy clouds of methane that race around the planet, and dark spots that are storms like Jupiter’s Great Red Spot that occasionally appear.
Like Uranus, not a great deal is known about Neptune, with Voyager 2 its only, brief, visitor. It has 13 (unlucky?) moons, including the largest, Triton (not to be confused with Saturn’s moon Titan), which is the seventh largest moon in the Solar System. It is covered in nitrogen ice and ‘pink snow’, which is actually material deposited by fountains of nitrogen that burst out of the ground!
Neptune's Great Dark Spot
Triton's puzzling surface