Abbe, Cleveland (1867). "On the distribution of the nebulae in space". Monthly Notices of the Royal Astronomical Society. 27 (7): 257–264. doi:10.1093/mnras/27.7.257a. From p. 262: "2. The Nebulae resolved and unresolved lie in general without [i.e., outside of] the Via Lactea [i.e., Milky Way], which is therefore essentially stellar. 3. The visible universe is composed of systems, of which the Via Lactea, the two Nubeculae [sic] [i.e., Magellanic Clouds], and the Nebulae, are individuals, and which are themselves composed of stars (either simple, multiple, or in clusters) and of gaseous bodies of both regular and irregular outlines."
Mathewson, D. S.; Ford, V. L.; Visvanathan, N. (1986). "The structure of the Small Magellanic Cloud". The Astrophysical Journal. 301: 664. Bibcode:1986ApJ...301..664M. doi:10.1086/163932.
Hertzsprung, E. (1913). "Über die räumliche Verteilung der Veränderlichen vom δ Cephei-Typus" [On the spatial distribution of variable [stars] of the δ Cepheid type]. Astronomische Nachrichten (in German). 196 (4692): 201–208. Bibcode:1913AN....196..201H. From p. 204: "Zunächst ergibt sich eine Parallaxe der kleinen Magellanschen Wolke. ... und als außerhalb der Milchstraße liegend zu betrachten sein." (First, a parallax of the Small Magellanic Cloud follows. According to the 13 δ Cepheid variable [stars] that are treated above, the absolute brightness (the mean between the maximum and the minimum) of -7.3 m corresponds to a period of 6.6 days. Variable [stars] of the period 6.6 days have in the Small Magellanic Cloud a mean photographic star size of 14.5 m. If one assumes — according to the universal yellow color of the δ Cepheid variables — a color index of + 1.5 m, then the corresponding visual star size will equal 13.0 m. This consideration thus leads to a parallax p of the Small Magellanic Cloud, which is given by 5 log p = -7.3 - 13.0 = -20.3. One obtains p = 0.0001", corresponding to a distance of about 3000 light-years. Since the galactic latitude of the Small Magellanic Cloud amounts to about - 45°, then it would lie — according to the foregoing — about 2000 light-years from a plane [passing] through our Sun [and] lying parallel to the Milky Way and [it] would have to be regarded as lying outside the Milky Way.)
Mathewson, D. S.; Ford, V. L.; Visvanathan, N. (1986). "The structure of the Small Magellanic Cloud". The Astrophysical Journal. 301: 664. Bibcode:1986ApJ...301..664M. doi:10.1086/163932.
Hertzsprung, E. (1913). "Über die räumliche Verteilung der Veränderlichen vom δ Cephei-Typus" [On the spatial distribution of variable [stars] of the δ Cepheid type]. Astronomische Nachrichten (in German). 196 (4692): 201–208. Bibcode:1913AN....196..201H. From p. 204: "Zunächst ergibt sich eine Parallaxe der kleinen Magellanschen Wolke. ... und als außerhalb der Milchstraße liegend zu betrachten sein." (First, a parallax of the Small Magellanic Cloud follows. According to the 13 δ Cepheid variable [stars] that are treated above, the absolute brightness (the mean between the maximum and the minimum) of -7.3 m corresponds to a period of 6.6 days. Variable [stars] of the period 6.6 days have in the Small Magellanic Cloud a mean photographic star size of 14.5 m. If one assumes — according to the universal yellow color of the δ Cepheid variables — a color index of + 1.5 m, then the corresponding visual star size will equal 13.0 m. This consideration thus leads to a parallax p of the Small Magellanic Cloud, which is given by 5 log p = -7.3 - 13.0 = -20.3. One obtains p = 0.0001", corresponding to a distance of about 3000 light-years. Since the galactic latitude of the Small Magellanic Cloud amounts to about - 45°, then it would lie — according to the foregoing — about 2000 light-years from a plane [passing] through our Sun [and] lying parallel to the Milky Way and [it] would have to be regarded as lying outside the Milky Way.)
Pigafetta et al., with Lord Stanley of Alderley, trans., The First Voyage Round the World, by Magellan (London, England: Hakluyt Society, 1874), p. 66. From p. 66: "The antarctic pole is not so covered with stars as the arctic, for there are to be seen there many small stars congregated together, which are like to two clouds a little separated from one another, and a little dimmed..."
Abbe, Cleveland (1867). "On the distribution of the nebulae in space". Monthly Notices of the Royal Astronomical Society. 27 (7): 257–264. doi:10.1093/mnras/27.7.257a. From p. 262: "2. The Nebulae resolved and unresolved lie in general without [i.e., outside of] the Via Lactea [i.e., Milky Way], which is therefore essentially stellar. 3. The visible universe is composed of systems, of which the Via Lactea, the two Nubeculae [sic] [i.e., Magellanic Clouds], and the Nebulae, are individuals, and which are themselves composed of stars (either simple, multiple, or in clusters) and of gaseous bodies of both regular and irregular outlines."
Bayer Johann (1603) Uranometria. Augsburg, (Germany): Christoph Mang. Star chart 49. The Large Magellanic Cloud (Nubecula major) appears below the chart's center and just above the fish Dorado; the Small Magellanic Cloud (Nubecula minor) appears to the left and below the chart's center and touches the right side of Hydrus the water snake.
