For much of the UK, tonight promises to be a good night for some stargazing. With a bit of luck the only clouds for many will be from our breath. The moon, which is four days off full, will outshine many of the stars but should not spoil the party.
If the sky is clear we will get a very good view of Mars in the east in the early evening. Sitting between the constellations of Leo (easy to find) and Cancer (hard to find), it will be rising about thirty degrees north of east at dusk and pass through due east at 8.30pm. By then Orion, below the high moon, will have moved to occupy a large part of the southern sky. If you follow Orion’s belt down to nearer the horizon then low in the southeast you will see the brightest star of them all, Sirius.
If you do happen to…
…and he was high in the sky, which reminded me of one of the simplest and most beautiful of natural navigational celestial techiques. Orion is a great help in finding East or West, but there is a method for finding direction that works even if you have no idea what object you are looking at in the sky. It takes time to apply accurately, but it can be used anywhere in the world and applies to all the stars, the moon, the sun and all the planets – even if you have no idea which one you are looking at.