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Joined: 28 Mar 2020
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Posted: Tue Aug 17, 2021 12:34 am    Post subject: Algol Reply with quote

The star Algol takes its name from an Arabic word meaning “the Demon’s Head.”
In 1900, it was at 24 Tau 46 ---- In 2000 at 26 Tau 10
Algol isn’t any scarier that any other star. But it’s associated in skylore with a greek mythical scary monster – the Gorgon, Medusa – who had snakes instead of hair. It’s said that she was so horrifying in appearance that the sight of her would turn an onlooker to stone.
In the mythology of the skies, Perseus – a great hero often depicted mounted on Pegasus the Flying Horse – used Medusa’s head to his own advantage – to turn Cetus the Sea-monster into stone. Perhaps the ancients associated this star’s variable brightness with the evil, winking eye of the Medusa.
The Chinese gave it the gruesome title Tseih She, the Piled-up Corpses.

Steady observation of Algol reveals a surprise. As regular as clockwork, every 2.867... days, the brightness of the star plummets from mid second magnitude (2.1) to the dim end of third (3.4, just 30 percent of normal), the whole event (including recovery) taking only a few hours.

It is very easy to note these variations by comparing Algol to other nearby and non-variable stars, such as:
- Almach (Andromeda gamma) (magnitude 2.1).
- Alpha Triangle (magnitude 3.4).
To Locate Algol. Head north and locate the constellation Cassiopeia (Shaped '' W '') It will be easy for you to find then Almach, the triangle ... Then Algol ...

The cause of the sudden drop is a stellar eclipse. Algol is a close double star. The companion to the visually observed star is a much dimmer yellow-orange class K giant star.. For simplicity, let's call it the "K giant.") The B star, at 2.9 solar radii, is smaller than the K giant (3.5 solar). Each orbit, when the dimmer, larger K star passes in front of the brighter B star, we see a deep eclipse. The eclipse is only partial, some of the light of the principal component still shining brightly through. Between the deep "primary" eclipses is a smaller dip when the bright star passes partially in front of the dim one.

Algol is almost circumpolar, meaning it almost never sets below the horizon at latitudes around 50 degrees. However, in the early evening, it is in winter that it peaks at the zenith.

Algol is equally famed for the "Algol paradox." The two stars are so close together, separated by only five percent the distance between the Earth and the Sun, that the brighter smaller star produces tides in the larger one. Matter then flows in from the large one (at a rate of around two hundred- millionths of a solar mass per year) to the small bright one, the effect directly observed through the stellar spectrum as the K giant is being stripped nearly to its core. A third member of the system, Algol C, a class A or F star of 1.8 solar masses, orbits about 3 Astronomical Units away with a period around the inner pair of 1.86 years. The system is a source of X-rays, though whether they come from a corona around one of the stars or from the flow of matter hitting the B star is uncertain.

3000 years ago, Algol was eclipsed more frequently by the star that revolves around it. This is what Finnish scientists at the University of Helsinki discovered by examining calendars from ancient Egypt.
The Egyptian people, at the time of the pharaohs, had already noticed that the brightness of the star, visible to the naked eye, varied according to a precise cycle. This cycle has been recorded for centuries in calendars intended for prediction and religion. It was measured for the first time by John Goodricke, a British amateur astronomer in 1783.
Question: At birth, when Algol is being eclipsed, does it have an influence different than the day when it is not eclipsed? ... Since the Egyptians kept a calendar of this phenomenon.

Winking? Yes. Algol is a known variable star, which waxes and wanes in brightness every second day. Please relax. Here on Earth we only get eclipses every 6 months or so.

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Posted: Wed May 11, 2022 7:35 pm    Post subject: Reply with quote

Very interesting. Known for longer time and seen cases where Algol has been dominant in chart with tragical consequences. Ebertin among others discussed of this...
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Joined: 30 Sep 2005
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Location: Edinburgh, Scotland

Posted: Wed May 11, 2022 9:12 pm    Post subject: Reply with quote

Articles looking at the astrology of Algol:

As thou conversest with the heavens, so instruct and inform thy minde according to the image of Divinity William Lilly
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Posted: Wed May 11, 2022 10:29 pm    Post subject: Reply with quote

Thanks Mark!
Enjoyed Nick Kollerstrom's article very well documented.

Lennon died when his progressed Sun reached the opposition to his natal Uranus (Algol) by Secondary Progressions, which was also the natal Sun in Scorpio of Mark Chapman.
Another thing I have found with Algol is the healing potential people can have when touched by this Fixed Star... On the positive side of course!

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Posted: Thu May 26, 2022 4:03 am    Post subject: Reply with quote

John Goodricke, the British astronomer who determined that Algol was an eclipsing binary star system, had a retrograde Saturn just over a degree away from Algol.
I have been reading much more about Beta Persei lately - I think it's the influence of the most recent lunar eclipse, where the moon opposed Algol.

Last edited by Omphalos on Thu May 26, 2022 3:06 pm; edited 2 times in total
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Posted: Thu May 26, 2022 4:38 am    Post subject: Reply with quote

Thank you Omphalos,
Interesting to find Saturn on a life dedicated to Algol.
Other Saturn influences in his life...
He became deaf in early childhood due to a severe illness.
He was elected a Fellow of the Royal Society on 16 April 1786. He never learned of this honour however, as he died four days later from pneumonia. and he never married.
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