Showing posts with label Stars. Show all posts
Showing posts with label Stars. Show all posts

Thursday, 15 December 2016

The 12 days of Solstice - Day 6 - Venus, the Evening Star, in the winter twilight sky over Newgrange


It's Day 6 or 'The 12 days of Solstice' and today's image features Venus, the Evening Star, over Newgrange at dusk in winter. The cycles of the heavenly bodies were undoubtedly recognised by early societies across the world. At Newgrange, the yearly cycle of the sun is definitively memorialised through the alignment of its passage and chamber with Winter Solstice sunrise. Less well known is the fact that at certain times of the year the moon can also cast its light in through the roof box and into the passage and sometimes the chamber.

The bright planet Venus, which is the third brightest object in the sky after the sun and moon, follows a distinct pattern over the course of eight years, sometimes appearing in the mornings before sunrise for a number of weeks or months, and sometimes appearing in the evening after sunset. After eight years, this pattern repeats. Could the builders have seen and known this?

Joseph Campbell wrote about a folk belief in the Boyne Valley that suggested the morning star cast a beam of light into the chamber of Newgrange once every eight years, at dawn. Uriel's Machine authors Christopher Knight and Robert Lomas suggest that a series of eight markings on the lintel stone above the roofbox of Newgrange represent the eight years of the Venus cycle. Indeed, on one year out of every eight, Venus rises on the morning of the Winter Solstice around an hour before the sun and an observer prostrate in the chamber of Newgrange would be able to see it through the roofbox.

In her guise as the morning star, Venus was known in Ireland as caillichín na mochóirighe, the 'early-rising little hag'.(1)

As you can see from the image above, Venus is a brilliant object. Compare it with the several stars visible in the image, which are much fainter. It is said that in complete darkness, away from city lights, the light of Venus casts a shadow. The folklore recorded by Campbell suggests that, once every eight years, the Morning Star "may be seen to rise and cast its beam precisely to the place of the stone with the two worn sockets".(2)

References:
(1) Murphy, Anthony (2012), Newgrange: Monument to Immortality, Liffey Press, p.77.
(2) Campbell, Joseph (1991) [1959], The Masks of God: Primitive Mythology, Pengiun Compass, p.431.

Further reading:
Do the myths about Newgrange and the Boyne Valley mounds offer an insight into their function?

Friday, 25 November 2016

The Milky Way and the Evening Star at Newgrange


I spent a beautiful evening out at Knowth and Newgrange in the Boyne Valley after sunset this evening. It was cold, but clear, and the colours in the fading twilight were absolutely beautiful. The above photo shows something I have never captured before, and was delighted to get on camera. It shows the bright band of the Milky Way over Newgrange. It also shows, sitting just above Newgrange and about to set behind it, The Evening Star - Venus.

I had been in the Boyne Valley for over an hour after sunset, from around 4.30pm. Venus was easily visible in strong twilight and I got several photos of it with Newgrange. But just as I was about to drive away to go home, I stopped at this viewing location and could see that the Milky Way was visible. So I jumped out of the car (which was still running) and put my 8mm wide angle lens on the camera and quickly set up for a 25-second exposure. It was very cold out - just 2 degrees celcius - and my fingers were numb from all the standing around over the previous hour and a half.

However, this shot, taken at 5.53pm, was well worth the effort I think. I'd safely say that's the earliest time after sunset that I've ever taken a photo of the Milky Way. And I'm glad I did. I drove home with a big smile on my face. Five minutes later and Venus would have disappeared behind the ancient mound of Newgrange.

It's nice also to have captured a photo of the Milky Way above Newgrange. In ancient times, the Milky Way might have been known as Bealach na Bó Finne, the Way of the White Cow, and the goddess who was venerated in the valley and who gave her name to the Boyne River was Bóinn, the White Cow goddess. It's likely that the Milky Way was seen as a heavenly reflection of the Boyne.

This is a scene that, as the builders of Newgrange would have well known, will only be repeated once every eight years...

Monday, 10 October 2016

The Milky Way in Irish mythology and folklore

The Milky Way has been known by several names and phrases in Irish mythology and folklore. Principal among its names seems to have been Bealach na Bó Finne, which means the Way of the White Cow. In this respect, it seems to have been regarded as a heavenly reflection of the River Boyne. A variant of this is Bóthar na Bó Finne, the Road of the White Cow. The goddess Bóinn's name is from and Find, meaning White Cow. In the Dindshenchas, we are told that the Boyne river was formed when she approached Nechtain's Well and it overflowed, washing her along the river, mutilating her, and finally carrying her out to sea where she was drowned. There, we are told, her lapdog Dabilla was turned into the Rockabill Islands. This is undoubtedly a creation myth.

The Milky Way (Bealach na Bó Finne) over the River Boyne (Abhainn Bó Finne).
There are other names and phrases for the Milky Way. These include:

Ceann Síne - Síne is "chain", and ceann is "head" or "chief", perhaps even an "end point". (An end point would be interesting with regards to the movement of the sun, moon and planets along the ecliptic, which intersects the Milky Way at two points in the sky. Perhaps one of these points was considered the place where the heavenly cycles began and ended?)

Síog na Spéire - the streak or stripe of the sky.

Earball na Lárach Báine - the tail of the white mare. In folklore, Láir Bhán is also a phrase for the moon. The Láir Bhán is considered by some to be an ancient sovereignty goddess. One old Samhain custom in Ireland involved the procession of the Láir Bhán (White Mare) from house to house. People would blow on cows' horns and the party was headed by a person dressed in a white robe or sheet who was known as the "White Mare".(1)

Mór-Chuing Argait - A name given for the Boyne in the Dinshenchas meaning "Great Silver Yoke", which might also have been a description of the Milky Way.

Smir Find Fedlimthi - the White Marrow of Fedlimid, also from the Dindshenchas poem Boand I.

Claí Mór na Réaltaí - the Great Fence/Ditch of the Stars.

Sgríob Chlann Uisnich - Track of the children of Uisneach.

This last one is contained in a beautiful folk memory, recalled in Scotland and in Nova Scotia but relating to an Irish myth (Deidre and the Sons of Uisneach) which appears to be the recounting of an ancient creation myth about the Milky Way. In this story, the Milky Way is known as Sgríob Chlann Uisnich. 

From Deirdre and the Lay of the Children of Uisne.(2)
It is not surprising to see the Milky Way described in conjunction with the swan. The constellation we know today as Cygnus may have been important to Stone Age astronomers and it appears to fly along the heavenly river.

In the Nova Scotia version of Deirdre and the Sons of Uisneach, the origin of the Milky Way galaxy is depicted as emerging from two trees as separated by a loch, as if to complete an arch between them.This episode is placed in the well-known Ulster tale if Deirdre, whose lover, Noíse, is one of the Children of Uisneach.
... the sons of Uisneach are killed in a great, unnamed battle, after which Deidire falls into the grave with the men. The bodies of the two lovers are exhumed and reburied on either side of the burial mound. Soon a tree grows from each grave and rises until the two join. This arouses a great deal of vengeful malice in an unnamed king, who orders that the trees be cut down. Soon another pair of trees grows and joins until the king has them cut down as well. This sequence of events recurs repeatedly until the king decides to have the bodies placed on either side of a loch, a distance too great for the trees to span. Between the trees a cluster of stars gathers in a light trail, Sgríob Chlann Uisnich [track of the Children of Uisneach].(3)


Sgríób Chlann Uisnich - the track of the Children of Uisneach - over the Dowth megalithc mound.

References:
(1) Paice MacLeod, Sharon (1960), Celtic Myth & Religion, p.175.
(2) Carmichael, Alexander (1914), Deirdre and the Lay of the Children of Uisne, Hodges, Figgis & Co., p.152.
(3) MacKillop, James (2006), Myths and Legends of the Celts, Penguin Books, p.292.


Monday, 25 April 2016

Boyne Valley Bridge with Taurus and Mercury


The Mary McAleese Boyne Valley Bridge in the afterglow with the stars of Taurus/Pleiades and the planet Mercury.

from Flickr http://flic.kr/p/GrW9Ps
http://bit.ly/MI-gallery

Saturday, 20 June 2015

Lugh of the Long Arm carries the sun across the sky on the longest days of the year

See also this new video explaining some of the astronomy and mythology behind this event.


The longest days of the year have arrived. The sun's rising and setting positions have reached their most northerly points along the horizon and these rising points are now "standing still" - hence the word solstice, or in Irish grianstad, meaning, literally, "stopped sun".

Orion "carries" the sun across the sky on the three longest days of the year.
The further north you are located from the equator, the longer the days in summer, and the shorter in winter. Here in Ireland, in the Boyne Valley, the sun rises before 5am on Summer Solstice and sets around 10pm. Even in the middle of the night, there is no real darkness as the whole northern horizon remains bathed in light. This is a result of the fact that the sun does not go far enough below the horizon at midsummer for Astronomical Twilight to end.

The sun is crossing over the Milky Way right now.
Something else that's really interesting is happening right now as the sun crosses the sky on these, the longest days. If you could somehow darken the sun, like what happens in a total eclipse, you'd see that the sun is currently positioned directly above Orion. In fact, at Summer Solstice in this modern epoch, the sun appears to be "carried" across the sky by this great anthropomorphic warrior/god/hunter constellation, in his upraised arm. Further to this is the fact that the sun is currently located in one of the two positions where it appears to "cross" over the Milky Way. Astronomers today call the sun's path the ecliptic. This imaginary ring through the sky intersects the Milky Way in two places - one above Orion and the other beneath Ophiuchus, between Sagittarius and Scorpius. It just so happens that in our lifetime, these positions correspond with the location of the Summer Solstice and Winter Solstice sun, respectively.

It is fascinating that the Boyne river, along which the greatest megalithic passage-tombs in Europe were built, has a name that is the same as the old Irish name for the Milky Way - Bealach na Bó Finne, the Way of the White Cow.

In mythology, there are many gods and warriors, but some particularly interesting ones which we examined in Island of the Setting Sun - In Search of Ireland's Ancient Astronomers. One of these is Lugh Lamhfada, Lugh of the Long Arm (or the long throw, perhaps). In the ancient mind, was it perhaps Lugh who was seen to "throw" the sun, moon and planets from his upraised hand?

Amergin's poem, on a photo of the Boyne estuary where he
arrived in Ireland with the Milesians.
There are other characters of mythology that are interesting. Amergin, leader of the Milesians, was known as Amergin of the Bright Knee. The star that we know today as Rigel has an Arabic name which means "bright knee". Amergin asked "who but I knows the place where the sun sets, who but I knows the ages of the moon?" The Annals of the Four Masters says the Milesians arrived in Ireland at Bealtaine in 1694 BC. On that date, the sun was above Orion, being carried across the sky. Because of an effect of the wobble of the earth's axis called Precession of the Equinoxes, the sun's position on the ecliptic on a specific day of the year (eg solstices, equinoxes) is slowly moving westwards through the ecliptic. When the Milesians arrived in 1694BC, their bright-kneed leader set foot on the shore of the Boyne river at the moment the sun was being carried by the constellation Orion - that might have been known then as Amergin. Nowadays, the sun's position at Bealtaine has moved so that it is beneath Aries. It is on Summer Solstice now that Orion/Amergin/Lugh appears to carry the sun across the sky.

And then there's Cúchulainn, the warrior hero of The Táin Bó Cuailnge, who battles in ford water - a ford being the crossing point of a river. Was he guarding the ford of the sky, as hinted in The Táin?

a fair man facing your foes
in the starlit ford of night.

It is no mere coincidence that Cúchulainn is a son of Lugh. The Milky Way was known as Lugh's Chain and Lugh used a weapon called the Tathlum, which is described as a concrete ball - made of his enemies' brains hardened with lime. Could this be the moon?

To the hero Lugh was given
This concrete ball – no soft missile –
In Mag Tuireadh of shrieking wails,
From his hand he threw the tathlum.

Today, as you watch the sun make its way across the sky on the weekend of the Summer Solstice, it would be nice to reflect upon the powerful imagery. The god of light has the sun in his hand.

Monday, 26 January 2015

Moon and night sky over Newgrange

There was a beautiful sky over Newgrange tonight. There was a lovely half moon peeping out from behind cloud that was moving along nicely, creating this lovely effect.

Saturday, 10 August 2013

Perseid meteors to rain down on Ireland this weekend

The skies over Ireland will be lit up this weekend with the best Meteor Shower of the year, with the peak occurring on Monday night. Called the Perseids, they are known for producing more fireballs than any other meteor shower during the year.

A map showing the direction from which the Perseids
will appear to emanate. © Astronomy.
Counting the numbers of meteors seen is vitally important to monitor the long term development of this shower, so Astronomy Ireland is organising a Nationwide Perseid Watch.

All you have to do is count how many meteors you see every 15 minutes and report it on the society’s website (astronomy.ie) where you can also find further details.

No telescopes or binoculars are needed to see the Perseids as they are bright enough to be seen with the naked eye.

"The Moon will be out of the way so it is definitely worth going outside to try to see some bright Perseids," said David Moore, editor of Astronomy Ireland magazine. "Sometimes large pieces of debris enter the atmosphere and flare up extremely brightly as fireballs - these can often land on the ground! We want everyone to go outside every night over the weekend and take part in our Nationwide Meteor Watch"

Astronomy Ireland urges people to go outside this weekend and next week to observe the meteors to take part in the Nationwide Meteor Watch. By doing so, people all over Ireland can take part in real scientific research!

For more information on the Perseid Meteor Shower and how to take part in the Nationwide Meteor Watch please visit www.astronomy.ie. Some of these reports will then be published in Astronomy Ireland magazine in the coming months.

Saturday, 9 February 2013

Mellifont Abbey under the stars

This is an artistic rendering of a photo taken last night at Mellifont Abbey, County Louth, with the assistance of my daughter Amy. This structure is called the lavabo. It was one part of an extensive abbey built by the Cistercian order at Mellifont. It was the Cistercians who came into the ownership of Brug na Bóinne and who gave Newgrange its modern name. In the photo you can see Orion above the lavabo with Sirius to his lower left, Taurus and the Pleiades to the upper right and, just above and right of the bull's head is the bright planet Jupiter.

Tuesday, 8 January 2013

Cúchulainn guards the starlit ford of night

Cúchulainn, the mythical hero of the Táin Bó Cuailnge epic, has many attributes that place him among the stars, specifically as the constellation we know today as Orion. In Ciaran Carson's translation of The Táin, we read that Cúchulainn guards the "starlit ford of night", the ford being the crossing point of the Milky Way, located just above Orion, where the sun, moon and planets wander across the heavenly river.

I was out in the valley tonight, with my two daughters, star gazing and taking photographs and, as usual, getting inspiration. There was fog in the Boyne Valley, so we ventured to higher ground, near Slane, where I took this photo at a gate into a field. You can see Cúchulainn/Orion, with the Táin Bó/bull/Taurus above him to the right, and the dog star Sirius to lower left. Just above the V-shaped head of Taurus you can see the bright planet Jupiter. The yellow light behind the bushes is the floodlighting of the ruins on the Hill of Slane.

Saturday, 17 November 2012

Moon and stars over Newgrange

A crisp winter sky over Newgrange, featuring the moon and the constellation
Aquila, the Eagle.
A similar scene except this one includes the cross-
shaped Cygnus, as well as Lyra.
A star-filled November sky over Newgrange.
Above are three images of Newgrange I took this evening, Saturday, November 17th, in the afterglow after the sun had gone down. It was very cold out there this evening, but that did not take from the spectacular beauty of the sky. The crescent moon hung low in the southwest near the Milky Way, beneath Aquila, the Eagle. Some nicely timed clouds made a nice flourish in the first two images. The Plough (Big Dipper, Ursa Major) can be seen over Newgrange in the third image.

Thursday, 15 November 2012

Stunning skies over Dowth this evening . . .

A stunning evening sky over the Neolithic passage-mound of Dowth this evening.

Given that the mythology of Dowth is all about an eclipse which plunges the land into darkness, and that the name of Dowth - Dubhadh - means 'darkness', one might wonder why mankind ever grew afraid of the dark when the sky gives such glorious displays as this one. I spent around three hours this evening at Dowth, a place I deeply love. Unlike Newgrange and Knowth, it has not been excavated or reconstructed in modern times, and the tourists/visitors are few and far between, especially in the winter.

I was hoping to get a photo from the top of Dowth looking at the sunset towards Newgrange. However, the sky was almost completely overcast when the sun went down. However, as night came in the clouds started to break up quite nicely, allowing the stars to shine through. I got busy finding a location where the sky would form a dramatic backdrop to the mound.

What I particularly love about this shot, and some of the others that I took, is that the clouds seem to mimic the profile of the mound and trees. The orange colour of the clouds is light pollution from the town of Navan, some 10 or 12 miles to the west. They gave a dramatic contrast to the deep blue of the sky's afterglow.

The shot below was taken five minutes later. The sky was darker, but the clouds were brighter! Light pollution is becoming a major problem in Ireland.


Tuesday, 7 August 2012

Absolutely thrilled with starscapes on the Nikon D7000



Tonight was my first real opportunity to use the new Nikon D7000 to take star shots, and I am absolutely enthralled and delighted with the results. Above is a photo of the Cassiopeia area of the sky. I used a reasonably high ISO, of 1250, and an exposure of about 10 seconds. I really didn't expect to see so many stars in such a short exposure. This is amazing. I am really, really, greatly impressed. I've used the full resolution image with 90% jpeg settings so that you can appreciate what I am talking about.