06 August 2010 by Tristan Gooley
My thanks to William Goble for bringing my attention to a extraordinary piece of navigation history.
Although standard practice in aerial navigation at the time, it is now remarkable to consider that the most powerful weapon in the history of warfare was guided using the stars. The Enola Gay dropped its atomic bomb payload on Hiroshima after an 1800 mile flight where the aircraft’s position was checked using the stars. From the Guardian article:
‘Van Kirk’s role was navigator: “We did things the old-fashioned way: celestial navigation, telling your position by the stars. We had a dome up top of the plane to sit up in and shoot the stars with a bubble sextant.”
The full article can be read in the Guardian Online.
Tags: astronavigation, aviation, celestial navigation, enola gay, sextant, stars, Van Kirk |
10 May 2010 by Tristan Gooley
A couple of weeks ago I promised to write up the story of my afternoon with the Bedouin. The article can be found here.
Tags: ajman, bedouin, desert navigation, dubai, moon, sheikh, stars, sun |
30 April 2010 by Tristan Gooley
The title of this post is not, for once at least, a reference to my style of blog-writing, but to the BBC Radio 4 program hosted by Clare Balding.
On Wednesday night I joined Clare and the Ramblings team for a walk on the South Downs Way; we headed west from Amberley, finishing at the Bignor Hill car park. We were treated to stars, planets and a full moon. I’ll let you know when it is airing, but should be sometime in June.
I felt hugely privileged and honoured throughout the walk, as early on Clare revealed that she has been embarking on walks for the Ramblings series for nearly 10 years, but this was the first ever night walk.
Did you know that in the UK a full moon rises close to southeast in summer and nearer to northeast in winter? (If you find viewing the full moon…
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Tags: amberley, BBC, bignor hill, clare balding, full moon, night walk, planets, radio 4, ramblings, south downs way, stars |
27 March 2010 by Tristan Gooley
Thanks to everyone who came to hear my talks and buy the book at the Outdoors Show yesterday. I will be giving the talks again today and on Sunday at the following times on the stage at the Wilderness Camp:
1.15: The Wonderful World of Natural Navigation. A quick peek at a couple of the journeys that led to my passion for the subject, including the transatlantics, and then a whirlwind tour of lots of techniques that you can use yourself.
4.00: Navigating Using the Night Sky. The ways we can use the stars, moon and planets to find our way. Introducing the ‘celestial sphere’, which despite its name is a great way to simplify the night sky.
I will be signing copies afterwards so bring yours along if you already have one or hopefully there will be some left to buy later at the show.
Hope you can make…
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Tags: book, celestial sphere, moon, natural navigation, outdoors show, stars, talks |
09 January 2010 by Tristan Gooley
For better or worse I seem to have a sixth sense for when conditions are great very early in the morning. I woke at 5.30am and was instantly drawn out into the neighbouring field to take in the scene and to take a picture. The snow was being lit up from the south by the waning crescent moon, the stars were out in force and Mars was peering down in red confidence from high in the west.
I stepped over the style into the field, camera in one hand, tripod in another and then it all went wrong. To avoid waking anyone I had not stumbled around for my clothes in the dark, but opted for the worryingly standard kit for this time of day: pyjamas, thick coat and wellies. My left foot slipped a bit on the style’s ice and a successful bid to save my skin and camera…
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Tags: eartham, land rover, light pollution, mars, moonlight, spica, stars, virgo |
14 December 2009 by Tristan Gooley
A restless night for lots of reasons, but that did at least allow some good Geminid-watching. Most meteor, ie. shooting star, showers occur when Earth passes through the dusty trail of a comet. The particles burn brightly as they hit our atmosphere. The Geminid meteors are some of the most dependable for night-skywatchers, taking place each year in mid-December and characterised by relatively slow moving yellow burning points. They appear to originate in the part of the sky that is home to the constellation Gemini, hence the name. The exact nature of the object causing the Geminid showers is less well understood. It has the beautiful name, Phaethon, was discovered in 1983 and is believed to be a now burnt-out comet, but may actually be closer to an asteroid.
The best meteor I saw last night, while well wrapped up and standing in the neighbouring field, burned for about two…
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Tags: crescent, gemini, Geminids, meteors, moon, stars |
07 July 2009 by Tristan Gooley

The following is an excerpt from the excellent website,
Hōkūle‘a deep sea navigator and captain Bruce Blankenfeld shares with new voyagers some of the knowledge passed on to him by master navigator Mau Piailug.
Using Papa Mau’s star compass, he teaches some of the basics of traditional Polynesian wayfinding.
Watch the navigation lesson.
Tags: lesson, polynesian, polynesian navigation, stars, wayfinding |
26 April 2009 by Tristan Gooley
I was up early this morning and caught a great twilight show from Jupiter and Venus. This photo does not do Venus justice, but you might just be able to make it out in the centre of the picture between the two banks of cloud.
Jupiter’s orbit is outside earth’s and so moves through the night sky quite slowly, about one constellation per year.
Venus’ orbit is closer to the sun than ours and so its position in the sky changes quite rapidly. It spends about seven months as a bright object in the early evening sky, before disappearing behind the sun’s glare for about four months and then re-emerging in the early morning for seven months. It then repeats the cycle. Ancient civilisations were divided in their understanding of it, some realising that it is a planet and others giving it two labels, ‘morning star’ and ‘evening star’, without…
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Tags: jupiter, morning, orbits, solar system, stars, venus |
13 August 2008 by Tristan Gooley
Last night was one of those occasions where the moon was the natural navigator’s best option. At about 10pm the sky overhead was overcast with broken clouds down to nearer the horizon. The western glow of dusk was gone and the only objects that could be seen were Jupiter and the three-quarter Moon. The cloud meant no Polaris, and the bright moon in the only patch of open sky blotted out the other stars. The Moon plays hard to get at first but on nights like this it can be a very good friend.
Tags: cloud, jupiter, moon, polaris, stars |
08 August 2008 by Tristan Gooley

A friend has just sent over a thought for the day:
‘Put three grains of sand in a vast cathedral, and the cathedral will be more closely packed with sand than space is with stars.’ – Sir James Jeans (1877 – 1946)
It doesn’t help us find our way, but it is a reminder to be grateful if we do find a star that helps.
(Thanks Anthony!)
Tags: agoraphobia, James, Jeans, Sir, space, stars |