Aguirre, Edwin L.  “Beyond Orion’s Sword.”  Sky & Telescope  Mar 1997: 112-114.
    Includes information on all the nebulas in Orion.

Anonymous.  “The Leo Triplet Tidal Tail.”  Sky & Telescope  Dec 1998: 26.
    Brief description of spiral galaxies in the “tail” of Leo.

Barton, Tamsyn.  Ancient Astrology.  New York:  Routledge, 1994.
    Information on the origin of the zodiac, including Egyptian and Greek cultures.

Bauval, Robert, and Gilbert, Adrian.  The Orion Mystery:  Unlocking the Secrets of the Pyramids.
    New York:  Crown, 1994.
    All about the Orion Mystery and how the pyramids might relate to the constellation.

Berman, Bob.  “Hunting Season.”  Discover  Feb 1994: 32.
    Includes color, luminosity, and distance information on Betelgeuse, Rigel, and the Orion Nebula.

Berman, Bob.  “The Lion in Spring.”  Discover Apr 1997:  81-82.
    Explains what Leo looks like in the sky in spring (mostly April).

Berman, Bob.  Secrets of the Night Sky.  New York:  W. Morrow, 1995.
    The information is not useful (very vague), but it has pictures we might use.

Beyer, Steven L.  The Star Guide.  Boston: Little Brown, 1986.
    Gives the location, the meaning of the name, lore and description of each major star in the
    constellations.

Budge, E. A. Wallis.  The Gods of the Egyptians.  New York:  Dover Publications, 1969.
    Descriptions of ancient Gods worshipped by the Egyptians-some cultural symbols.

Burnham, Robert.  Burnham’s Celestial Handbook:  An Observer’s Guide to the Universe Beyond the
    Solar System.  Vol. 2.  New York: Dover Publications, 1978.  3 vols.
    Lists of all double, mulitple, and variable stars, all star clusters, nebulae, and galaxies, along with
    descriptive notes on the constellation itself.

Dunlop, Storm.  Astronomy: a step-by-step guide to the night sky.  New York:  Collier Books, 1985.
    Talks about general background information on nebulas, and star gazing itself along with a table of
    the Greek letters.

Dupuis, Charles Francois.  The Origin of All Religious Worship.  New York:  Garland Publications, 1984.
    Has a picture of the Zodiac of Denderah-very old inscription on an ancient egyptian temple.

Eicher, David J.  “Winter’s Nebulae and Star Clusters.”  Astronomy  Feb 1993: 78-83.
    Talks about the Horsehead Nebula and the Lambda Orionis Bubble.

Haas, Sissy, and MacRobert, Alan M.  “Doubles In Leo: Stars to Relax With.” Sky & Telescope
    Apr 1997: 76-78.
    Goes into the double stars of the constellation and their location in the sky.
 
Krupp, E. C.  “Pussyfooting in the Heavens.”  Sky & Telescope Feb 1995: 64-65.
    Has information on Regulus.

MacRobert, Alan M.  “A Galaxy Hop In Leo.”  Sky & Telescope Apr 1997: 56-60.
    Explains how to observe the galaxies and stars within Leo-it is a guide.

Mayer, Ben.  Starwatch.  New York:  Perigee Books, 1984.
    Gives distances and magnitudes for stars, and distances and brightness for objects of interests in
    the constellation, along with other extra information and useful pictures.

Moore, Patrick.  Stargazing: Astronomy Without a Telescope.  New York:  Barron’s Education Series,
    1985.
    Gives information on each star, has legends on the constellations, and shows how to find other
    constellations from ours.

Motz, Lloyd, and Nathanson, Carol.  The Constellations.  New York:  Doubleday, 1998.
    Has myths on the constellations along with scientific and background information on the stars.

Rao, Joe.  “Bright Orion.”  Natural History  Jan 1996: 56.
    Gives distances, sizes, and other bits of scientific information on Betelgeuse, Rigel, the Belt, and
    the Orion Nebula.

Rao, Joe.  “Leo Announces Spring.”  Natural History Apr 1997:  68.
    More on Leo being a spring-time constellation.

Ridpath, Ian.  Universe Guide to Stars and Planets.  New York:  Universe books, 1984.
    Gives the magnitude, distance from Earth, and some other relivant information on bright stars in
    the constellations.

Roth, Joshua.  “Variable Betelgeuse.”  Sky & Telescope  Nov 1996: 14.
    An article about experiments that have been done to measure Betelgeuse’s variability.

Schaaf, Fred.  “The Crescent Sky of Early Spring.”  Sky & Telescope Apr 1998: 82-86.
    Details on the magnitude and position of Regulus in the sky.

Schneider, David.  “Polarized Life.” Scientific American  Oct 1998: 24.
    An article about how they are studying the polarized light from Orion to try and answer questions
    pertaining to the preference of right-handed sugars and left-handed amino acids here on Earth.