Astronomy articles to help you discover the wonders of the universe.

Constellation Guide

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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.

Observational Astronomy Series
  1. Tips for Getting Started in Astronomy
  2. Dark Eye Adaption - How We See In the Dark
  3. Light Pollution
  4. Using Star Charts and Measuring Distance
  5. Constellation Guide
  6. Binocular Astronomy
  7. Moon Watching - How to Observe the Moon
  8. Buying Your First Telescope
  9. Your First Night With Your First Telescope
  10. Sky Orientation through a Telescope
  11. Polar Alignment of an Equatorial Telescope Mount
  12. Useful Astronomy Filters for Astrophotography

Delphinus

The Dolphin

Delphinus is a rather small northern constellation very close to the celestial equator. It was already included in Ptolemy's list of 48 constellations and also forms part of the modern list of 88 constellations approved by the IAU.

Constellation Guide Delphinus

It looks remarkably like a leaping dolphin and thus can easily be recognized in the sky. Delphinus is surrounded (clockwise from north) by the little fox Vulpecula, the flying arrow Sagitta, the eagle Aquila, the water carrier Aquarius, the little horse Equuleus and finally the flying horse Pegasus.

Delphinus Mythology

According to the first one, Greek god Poseidon wanted to marry Amphitrite, a nereid. She, however, wanting to protect her virginity, fled to the Atlas mountains. Her suitor then sent out several searchers, among them a certain Delphinus. Delphinus accidentally stumbled upon her and was able to persuade Amphitrite to accept Poseidon's wooing. Out of gratitude the god placed the image of a dolphin among the stars.

Notable Objects in Delphinus

Because it is in a rich Milky Way star field, Delphinus has several deep-sky objects. NGC 6891 is a planetary nebula of magnitude 10.5 and one more notable planetary nebula is NGC 6905 or the Blue Flash nebula. NGC 6934 is a globular cluster of magnitude 9.75.

Photos of Delphinus

I have no photos of Delphinus yet.

Constellations

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 Summer Constellations

These Northern constellations are best viewed around the summer 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.

Northern Winter Constellations

These Northern constellations are best viewed around the winter 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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