04 August 2010 by Tristan Gooley
I returned from a family trip to Brittany yesterday and what better welcome back than to come downstairs this morning to find Jupiter beaming at me through a skylight. It is a firm fixture in the early morning sky now and consequently is being confused by many for Venus. If a bright white object is visible when it is too light to see many stars then you are likely looking at Jupiter or Venus, and if the sun is more than fifty degrees away (five extended fist-widths) then that narrows it to Jupiter. This is an exercise you only need to do irregularly since it will appear in the same part of the sky at the same time for many days.
Since Venus is relatively close to the sun and is only visible as a bright object when the sun is below the horizon, it follows that Venus is normally…
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Tags: beech trees, clouds, crescent, dawn, jupiter, moon, stratocumulus, venus |
28 May 2010 by Tristan Gooley
Another very enjoyable Beginner’s Guide to Natural Navigation course at the Royal Geographical Society yesterday. The diversity of interests and experiences never fails to amaze me; from desert wanderers to cruise ship sailors and even a sailor from a tall ship in the Pacific. Wonderful!
It was a beautiful full moon last night and I got to experiment with a new lens that I have bought. Still a long way to go until I take a photo of the moon that I am happy with, but always learning which is satisfying.
The phase of the moon appears the same all over the world, but the orientation changes depending on your latitude. In other words, a full moon will be full all over the world, but its features may appear upside down from the opposite hemisphere. When high in the sky, crescent moons will appear closer to ‘vertical’ at higher…
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Tags: crescent, equator, full moon, latitude, natural navigation, navigation courses, rgs, royal geographical society |
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 |
13 October 2009 by Tristan Gooley
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.
Tags: contrails, crescent, heading, moon, Sirius, southeast |