The natural Navigation: The Right Course, Naturally

A blog of two halves for you today.

Late September can bring some of the best early evening experiences for those who enjoy looking upwards.

Visibility is likely to fluctuate a bit, but it looks as though we may get some of the best stargazing weather of the year over the next few nights. It promises to be warm enough to enjoy long spells outside, but without the crazily late sunsets of midsummer.

I’ll point out a few of the things worth looking for in a minute, but first just a few words about this weather.

On my courses I encourage people to take note of shifts in wind direction and how this relates to changes in weather patterns. If the weather is unseasonably warm or cold, we should expect some deviation from the prevailing wind direction, southwest.

The image above shows the UK (at lunchtime tomorrow) sandwiched neatly between…

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My thanks to Mark Evans who not only flew over from Oman for a course, but also sent me this great time lapse photo from Oman.

Mark is the General Manager of Outward Bound Oman, which does not sound like the worst job in the world to me! Outward Bound Oman, under Mark’s leadership, is teaching young Omanis many outdoor skills, including traditional methods of desert navigation.

Time for a bit of fun. Which way are we looking in this picture and why?

Answers by email please. I’ll post the correct answer in a couple of days.

Update.12/05/11.

We are looking just south of west. approx 255 degrees. Orion’s belt can be seen setting about one third the way in from the right. The arcing to the right is anticlockwise around the North Celestial Pole, to the left the stars are arcing clockwise around the South Celestial…

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We are bearing down on stargazing-season. It is getting dark early enough in the evenings, staying dark long enough in the mornings and doesn’t yet freeze you for the privilege.

This morning I enjoyed a view of Orion, Sirius, Leo, which has just marched ahead of the dawn sun now, and a few other players. I took this photo of Orion’s Sword hanging down to the left (eastern) side of a large beech tree and dangling down towards the south, as it does. The ‘smudge’ in the middle is the Great Nebula in Orion, also known less romantically as ‘M42′. It is a ‘stellar nursery’ where new stars are born. Would a more appropriate term not be a ‘stellar maternity ward’?

On a different subject, my best wishes and good luck to Kevin Shannon who is attempting a zero-emissions circumnavigation of the globe. He asked me for my thoughts,…

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Once more my pre-dawn ‘Batsense’ kicked in and I awoke before five with an urgent desire to go outside. It was not the pressure on my bladder, I do not think, but the idyllic conditions and night sky players that were beckoning me.

Orion and his sword were first to offer their greetings and then I noticed Jupiter still visible in the southwest. Sirius, Betelgeuse, Capella, the Plough and Polaris sketched out some order in the celestial sphere.

The moon was close to setting and was lighting up rows of fluffy cumulus clouds on their western edges. As time passed the clouds lost their bright white western edges, but gained pink and orange eastern ones. They moved sedately towards the northeast, signalling the start to a fine day. (Photo to the right was taken a few minutes ago.)

My thanks to Stuart Goring for sending over these great Thomas Hardy celestial quotes. Those who know this blog or my book will be aware that I love it when nature and the arts come together. The two following excerpts are taken from ‘Far From the Madding Crowd.’

“He stood and carefully examined the sky, to ascertain the time of night from the altitudes of the stars. The Dog-star and Alderbaran, pointing to the restless Pleiades, were halfway up the Southern sky ,and between them hung Orion, which gorgeous constellation never burnt more vividly than now, as it soared forth above the rim of the landscape. Castor and Pollux with their quiet shine were almost on the meridian: the barren gloomy square of Pegasus was creeping round to the north-west; far away through the plantation Vega sparkled like a lamp suspended amid the leafless trees, and Cassiopeia’s chair…

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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…

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Venus and Sirius both beamed at me this morning during my pre-dawn shiver outside. The aircraft were painting a pink path to the continent to escape the autumnal cold. They are of course heading southeast, which I’m sure you checked from the tiny crescent of the moon. Speaking of crescents, this morning calls for a hot croissant.

I woke up in the middle of the night and couldn’t go back to sleep. Some compensation was to be found outside, with a beautiful view of Orion, Sirius and Venus. All three have historically had some significance. Both Orion and Sirius have been used as seasonal markers, the ‘heliacal rising’ of Sirius being used as a forecast for flooding of the Nile in ancient Egypt. Orion is still known as a winter constellation in the northern hemisphere. The references to Venus are legion and include its use by the Maya to time the start of wars (see Anthony Aveni’s excellent book, ‘People and the Sky‘, for more on that.)

The picture is of Venus rising in the east-northeast just before five this morning, it took many attempts to get this photo as a cold wind kept rattling the tripod and its owner.

One of the many aspects…

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If the plan survives contact with the enemy, then our younger son goes to bed at the same time, 7pm, every night. Part of his bedtime routine, after bath, milk and a story is for him to run up to one of us and demand to see the Moon. Unfortunately we are not able to oblige with a view of the Moon every evening, much in the same way that we cannot find enough cake in the universe to satisfy his desires. Our alternative tactic to cake is usually a sweet fruit snack, cheese, raisins etc. The alternative for the Moon, on a clear night will be a bright star.

Sirius is very visible on clear nights at this time to the south. Unfortunately last night it was obscured by a tree branch. Nature is obliging enough to make the stars rise 4 minutes earlier each evening and so…

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The incestuous relationship between the stars and mythology is nothing new, but we often overlook how constantly the relationship is rekindled or how fresh some of the stories are. The following paragraph is from Emily Winterburn’s entertaining new book, ‘The Stargazer’s Guide‘.

‘In Orion these [stars] are Rigel, Betelgeuse and Bellatrix; in Canis Major there is Sirius – and even Canis Minor, which essentially consists of only two stars, has the very bright Procyon. These are familiar names, but not perhaps for astronomical reasons. Bellatrix and Sirius are probably better known now as characters in J.K. Rowling’s Harry Potter books, while Betelgeuse was the title of a Tim Burton film, albeit with a different spelling [Beetlejuice].