Constellation guide to the 88 official constellations which divide up the sky. These constellations are used to help navigate the celestial sphere. The Constellations are patterns in the sky which have been to invented and have deep mythology behind them. Constellations cover massive areas in the sky and as such are very easy to find.
- Tips for Getting Started in Astronomy
- Dark Eye Adaption - How We See In the Dark
- Light Pollution
- Using Star Charts and Measuring Distance
- Constellation Guide
- Binocular Astronomy
- Moon Watching - How to Observe the Moon
- Buying Your First Telescope
- Your First Night With Your First Telescope
- Sky Orientation through a Telescope
- Polar Alignment of an Equatorial Telescope Mount
- Useful Astronomy Filters for Astrophotography
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Rescuer of Andromeda
Perseus is a northern constellation, named after the Greek hero who slew the monster Medusa.
It contains the famous variable star Algol (ß Per), and is also the location of the radiant of the annual Perseids meteor shower.
In Greek mythology, Medusa (Greek for guardian protectress), was a monstrous chthonic female character, essentially an extension of an apotropaic mask, gazing upon whom could turn onlookers to stone.
Notable Objects in Perseus
The galactic plane of the Milky Way passes through Perseus, but is much less obvious than elsewhere in the sky as it is mostly obscured by molecular clouds. The Perseus Arm is a spiral arm of the Milky Way galaxy and stretches across the sky from the constellation Cassiopeia through Perseus and Auriga to Gemini and Monoceros.
Within the Perseus Arm lie two open clusters (NGC 869 and NGC 884) known as the Double Cluster. They are easily visible through binoculars and small telescopes.
M34 is an open cluster that appears at magnitude 5.5, and is approximately 1,500 light-years from Earth.
M76 is a planetary nebula, also called the Little Dumbbell Nebula.
Photos of Perseus
I have no photos of Perseus yet.
Northern Circumpolar Constellations
These constellations can be viewed all year round in the Northern hemisphere as they move in a counterclockwise direction around the north celestial pole without setting or dipping below the horizon.
Northern Spring Constellations
These Northern constellations are best viewed around the spring months. The rest of the year the constellation will not rise during the night.
Northern Autumn Constellations
These Northern constellations are best viewed around the autumn months. The rest of the year the constellation will not rise during the night.
Last updated on: Wednesday 24th January 2018
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