• Jean Meeus, Mathematical Astronomical Morsels

    Oliver, B. M., "The Shape of the Analemma", (Sky & Telescope, Jul. 1972, pages 20-2). The analemma is shaped by the changing inclination and eccentricity of the earth over the millennia.

    Jawad, A. H., "How Long is a Lunar Month?", (Sky & Telescope, Nov. 1993, pages 76-7).

    Meeus, J., "Extreme Perigees and Apogees of the Moon", (Sky & Telescope, Aug. 1981, pages 110-1).

    Ottewell, G., The Astronomical Companion, 1979, page 32-33, Dept of Physics, Furman University, Greenville, S.C. 29613.
    Excellent source reference (numerous diagrams) for explaining the motion and movement of orbiting solar system objects.

    News Notes, "How Bright the Moon?", (Sky & Telescope, Apr. 1993, page 14).
    "Opposition effect" causes the moon to be 25 percent brighter.

    Gingerich, O., Kluepfel, C., and Meeus, J., Letter to Editor, (Sky & Telescope, Aug. 1981, page 118).
    Discusses the return period of solar totality at a given locale.

    Ottewell, G., The Under-Standing of Eclipses, 1991, Astronomical Workshop, Furman University, Greenville, S.C. 29613.
    General discussion on lunar and solar eclipse cycles.

    Zirker, J. B., Total Eclipses of the Sun, 1984, Van Nostrand Reinhold Company, Inc. 135 W. 50th Street, New York, N. Y. 10020.
    General discussion on various aspects associated with solar eclipses.

    Albers, S. C., "Mutual Occultations of Planets: 1557 to 2230", (Sky & Telescope, Mar. 1979, page 20).

    Ashbrook, J., "Some Bunching of Planets", (Sky & Telescope, Nov. 1973, page 300).
    Other five naked-eye planetary groupings of less than seven degrees geocentric longitude occurred in 1059 B.C., 185 B.C., and 710 A.D..On 15 Sep. 1186 A.D., these five planets, the moon and sun were within 12 degrees geocentric longitude.

    Lovi, G., "Planet Brightnesses", (Sky & Telescope: June 1989, page 629-30).

    Meeus, J., Letter to Editor, (Sky & Telescope, Dec. 1981, page 553).

    Meeus, J., Letter to Editor, (Sky & Telescope, Jan. 1982, pages 5-6).

    Moore, P., and Hunt, G., Atlas of the Solar System, 1983, page 46, Rand McNally & Company.
    Excellent source reference on all known solar system objects. VENUS
    Ashbrook, J.,"The Next Transit of Venus", (Sky & Telescope, Oct. 1979, pages 324-325).

    Lovi, G., "Venus Hides Out", (Sky & Telescope, Aug. 1991, page 167-8).
    Discusses why anti-transits are more common than transits.

    Meeus, J., "The Transit of Venus 3000 B.C. to 3000 A.D", Journal of the British Astronomical Association, vol. 68, page 98, 1958.
    After another thousand years, transits will occur singly for many millennia.

    Victor, R. C., "Observing Venus Near Inferior Conjunction", (Sky & Telescope, Mar. 1977, pages 207-8).

    Steffey, P., Letter to Editor,"When Mars Outshines Jupiter", (Sky & Telescope, Jan. 1987, page 5).

    Church, J. A., "Great Conjunctions of Jupiter and Saturn", (Sky & Telescope, Mar., 1991, page 305-7).

    Aksnes, K and Franklin, F., "Upcoming Mutual Events of Jupiter's Moons", (Sky & Telescope , Feb. 1985, pages 116-8).

    Ashbrook, J., "Unusual Phenomena of Callisto", (Sky & Telescope, May 1969, page 326.
    Explains why Castillo's eclipse-season interval and duration is approximately three years.

    Ashbrook, J., "300 Years of Satellite Eclipses", (Sky & Telescope, May 1978, page 380).
    Io is shown to decrease three magnitudes in 4.5 minutes during an eclipse.

    Brinkmann, R. T., and Millis, R. L., "Mutual Phenomena of Jupiter's Satellites in 1973-74", (Sky & Telescope, Feb. 1973, pages 93-5).
    Despite crossing Jupiter's orbital plane twice each Jovian year (11.86 earth years), not all events are visible because Jupiter may be in conjunction with the sun. In 1973-4, over 300 events took place in 15 months.

    Reese, E. J., "Timings of Inferior Geocentric Conjunctions of Jupiter's Moons", (Sky & Telescope, May 1971, pages 318-9).
    Explains why each of the Galilean Satellites' shadow and satellite itself appears different and is a function of their albedo and Jupiter's heliocentric longitude.

    Westfall, J., "Timing Eclipses of Jupiter's Moons", (Sky & Telescope , Dec. 1987, pages 634-6).

    Sinnott, R., Jupiter "Without a Visible Satellite", (Sky & Telescope , Sep. 1982,pages 214-5).
    List all occasions when the Galilean satellites are occulted, eclipsed or in transit at the same time.

    Benton Jr., J. L., "Saturn's Rings Turn Edge On", (Sky & Telescope, May 1995, pages 68-72).

    Olson, D. W., Doecher, R. L., & Gallmeier, J., "The Rings of Saturn", (Sky & Telescope, May 1995, pages 92-5).

    Schmidt, R. E., "Disappearances of Saturn's Rings", 1600-2100, (Sky & Telescope, Dec. 1979, pages 500-2).

    Burnham, Jr., R., Burnham's Celestrial Handbook (An Observer's Guide to the Universe Beyond the Solar System), DoverPublications Inc., 1978.
    Published in three volumes, describes each constellation, listing double and multiple stars; variable stars; star clusters, nebulae and galaxes; and descriptive notes (history, unusual appearances, etc.).

    Dutch, S., Letter to Editor, (Sky & Telescope, Jan. 1982; page 5).

    Holtz, J., "The Number of Stars Visible", (Sky & Telescope, May 1994, pages 86-8).
    Provides table for number of naked-eye star visible given location and season.

    Schaefer, B. E., "A Star's Visibility Just Before Occultation", (Sky & Telescope, Jan. 1993, pages 89-91).
    Graphs depict telescope size and star magnitude to determine threshold observability.

    OBSERVING Holtz, J., "The Number of Stars Visible", (Sky & Telescope, May 1994, pages 86-8).

    MacRobert, A. M., "The Power of Binoculars", (Sky & Telescope, May 1995, pages 48-9).

    Schaefer, B. E., "A Star's Visibility Just Before Occultation", (Sky & Telescope, Jan. 1993, pages 89-91).

    SOFTWARE Dance of the Planets, ARC Science Simultations Software, P. O. Box 1955, Loveland CO 80539

    Duffett-Smith, P., Practical Astronomy with Your Calculator, Cambridge University Press, 1982

    Meeus, J., Astronomical Formulae for Calculators, 1982.

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