The Length of the Lunar Month

Stephenson F. R. Liu Baolin , “On the length of the synodic month”, The observatory, cxi (1991), 21–22.

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Neugebauer P. V. , Astronomische Chronologie (Berlin and Leipzig, 1910).

Fotheringham J. K. , “On the smallest visible phase of the moon”, Monthly notices of the Royal Astronomical Society, lxx (1910), 527–31.

Schaefer B. E. , “An algorithm for predicting the visibility of the lunar crescent”, in Lunar calendar conference, ed. by 1. Ahmad (Herndon, 1988), XI 1–12; idem, “Visibility of the lunar crescent”, Quarterly journal of the Royal Astronomical Society, xxix (1988), 511–23.

Schaefer B. E. , LunarCal, published by Western Research Company, Inc., 2127 E. Speedway, Suite 209, Tucson AZ 85719 (1990).

Danjon A. , “Jeunes et vieilles lunes”, L'astronomie, xlvi (1932), 57–66; idem, “Le croissant lunaire”, ibid. 1 (1936), 57–65.

Schaefer B. E. , “Length of the lunar crescent”, Quarterly journal of the Royal Astronomical Society, xxiii (1991), 265–77.

Fotheringham , op. cit. (ref. 4).

Doggett L. Schaefer B. E. , “Lunar crescent visibility”, Astronomical journal, submitted.

Schaefer , “Visibility of the lunar crescent” (ref. 5).

Doggett Schaefer , op. cit. (ref. 10).

Doggett L. E. Seidelmann P. K. Schaefer B. E. , “Moonwatch-July 14, 1988”, Sky and telescope, lxxvi (1988), 34; Doggett L. Schaefer B. E. , “Results of the July Moonwatch”, ibid., lxxvii (1989), 373–5; idem. “Moonwatch August 21”, ibid., lxxx (1990), 174–5.

Doggett Schaefer , op. cit. (ref. 10), and op. cit. (ref. 13, 1989).

Reddy P. , 1988, private communication.

Husar R. B. Holloway J. M. , “The properties and climate of atmospheric haze”, in Hygroscopic aerosols, ed. by Ruhnke L. H. Deepak A. (Hampton, 1984), 129–70.

Schaefer , “Visibility of the lunar crescent” (ref. 5).

Bortle J. E. , “April's old and young moon”, Sky and telescope, lxxx (1990), 215.

Ibid.; Bieda S. W. , “A lunar double whammy”, Sky and telescope, lxxxi (1991), 5–6; Laing D. , “More on record moons”, ibid. 573.

Ashbrook J. , “Some very thin lunar crescents”, Sky and telescope, xlii (1971), 78–79; Bobrovnikoff N. T. , Astronomy before the telescope (Tucson, 1989), 58.

Schaefer B. E. , “Heliacal rise phenomena”, Archaeoastronomy (supplement to Journal for the history of astronomy), no. 11 (1986), S19–33.

Ahmad I. , “Lunar Calendar Conference overview”, in Lunar Calendar Conference (ref. 5), 11–5.

McCluskey S. C. , “Lunar astronomies of the western Pueblos”, in World archaeoastronomy, ed. by Aveni A. F. (Cambridge, 1989), 355–64.

Government of India, Report of the Calendar Reform Committee (New Delhi, 1955).

Blackwell H. R. , “Contrast thresholds of the human eye”, Journal of the Optical Society of America, xxxvi (1946), 624–43.

Hapke B. , “Bidirectional reflectance spectroscopy, Icarus, lix (1984), 41–59.

Helfenstein P. Veverka J. , “Photometric properties of lunar terrains derived from Hapke's Equation”, ibid., lxx (1987), 342–57.