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Orion: Mighty Hunter of the Winter Sky

Orion: Mighty Hunter of the Winter Sky

Now dominating our night skies is Orion, the great celestial warrior; the grandest and most brilliant of all the constellations and visible from every inhabited part of the Earth. Shining down upon us through the frosty air all winter long, three bright stars which decorate Orion’s belt appear in a diagonal line in the middle of a bright rectangle. The three belt stars point northward to the clusters of the Hyades and Pleiades of Taurus, and southward to the Dog Star Sirius.

Within Orion we find two immense stars, Rigel and Betelgeuse, apparently at two entirely different periods in a star’s existence. In Rigel (the “Left Leg of the Giant”), we find a star apparently reaching the prime of its life. It’s a true supergiant: a blazing white-hot star of intense brilliance and dazzling beauty. Located 900 light years away, its computed luminosity is roughly 36,000 times the brightness of our Sun.

Betelgeuse (“The Armpit of the Giant”) in contrast, shines with a cool, dull ruddy hue and is located 500 light years away. It is an irregular pulsating supergiant star, nearing the end of its life and as such it expands and contracts spasmodically. Incredibly, its diameter can vary between 550 to 920 times the diameter of our Sun.

Put another way, if our Sun were reduced to the size of a baseball, Betelgeuse at its maximum size would be a globe measuring 176 feet across!

As is also the case with the mighty Hercules, the figure of Orion has been associated in virtually all ancient cultures with great national heroes, warriors, or demigods. Yet, in contrast to Hercules, who was credited with a detailed series of exploits, Orion seems to us a vague and shadowy figure. The ancient mythological stories of Orion are so many and so confused that it is almost impossible to choose among all of them. Even the origin of the name Orion is obscure, though some scholars have suggested a connection with the Greek “Arion,” meaning simply warrior. All, however, agree that he was the mightiest hunter in the world and he is always pictured in the stars with his club upraised in his right hand. Hanging from his upraised left hand is the skin of a great lion he has killed and which he is brandishing in the face of Taurus, the Bull, who, in the stars, is charging down upon him.

The Great Orion Nebula

Great Orion Nebula

Also within the boundaries of Orion is undoubtedly one of the most wonderfully beautiful objects in the sky: the Great Orion Nebula. It appears to surround the middle star of the three in line that marks the hunter’s sword. It’s invisible to the unaided eye, though the star itself appears a bit fuzzy. It is resolved in good binoculars and small telescopes as a bright gray-green mist enveloping the star. In larger telescopes, it appears as a great glowing irregular cloud. A sort of auroral glow is induced in this nebula by fluorescence from the strong ultraviolet radiation of four hot stars entangled within it. Edward Emerson Barnard (1857-1923), for many years an astronomer at Yerkes Observatory, once remarked that it reminded him of a great ghostly bat and that he always experienced a feeling of surprise when he saw it. Known also as Messier 42, the Orion Nebula is a vast cloud of extremely tenuous glowing gas and dust, approximately 1,600 light years away and about 30 light years across (or more than 20,000 times the diameter of the entire Solar System). Astrophysicists now believe that this nebulous stuff is a stellar incubator; the primeval chaos from which star formation is presently underway.

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  • Rosalind says:

    Hello I love watching the stars every night and last night was supposed to be one of the peak night to watch the meteor shower. Well I watched from midnight till about 5am and seen nothing. WHY

  • Leilani says:

    Such information leaves me awestruck. I love to gaze at Orion on cold starry nights. Don’t sweat the small stuff because we’re mighty small in this universe! Keep looking up and be happy!

  • Chuck says:

    Great info thanks for sharing. I’ve always been interested in the stars but have difficulty locating constellations.

  • Theresa Connors Elliot says:

    I saw Orion’s Belt in the South last night at 11:00 pm. A brilliant sight!!! Interesting article as usual.

  • errald turner says:

    I am 86 yrs old…..got the star bug in the boy scouts..
    its been my hobby ever since…
    love the info you have on the net

  • Sharon Merlier says:


  • If you notice a hole in the upper left-hand corner of your Farmers' Almanac, don't return it to the store! That hole isn't a defect; it's a part of history. Starting with the first edition of the Farmers' Almanac in 1818, readers used to nail holes into the corners to hang it up in their homes, barns, and outhouses (to provide both reading material and toilet paper). In 1919, the Almanac's publishers began pre-drilling holes in the corners to make it even easier for readers to keep all of that invaluable information (and paper) handy.

    Reading Farmers' Almanac on Tablet with Doggie

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