Half-hours with the Telescope - Being a Popular Guide to the Use of the Telescope as a - Means of Amusement and Instruction. by Richard Anthony Proctor
page 47 of 115 (40%)
page 47 of 115 (40%)
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Some of the stars of this group appear to be variable.
The star [rho] Orionis is an unequal, easy double, the components being separated by nearly seven seconds. The primary is orange, the smaller star smalt-blue (see Plate 3). The middle star of the belt ([epsilon]) has a distant blue companion. This star, like [iota], is nebulous. In fact, the whole region within the triangle formed by stars [gamma], [kappa] and [beta] is full of nebulous double and multiple stars, whose aggregation in this region I do not consider wholly accidental. We have not explored half the wealth of Orion, but leave much for future observation. We must turn, however, to other constellations. Below Orion is Lepus, the Hare, a small constellation containing some remarkable doubles. Among these we may note [xi], a white star with a scarlet companion; [gamma], a yellow and garnet double; and [iota], a double star, white and pale violet, with a distant red companion. The star [kappa] Leporis is a rather close double, white with a small green companion. The intensely red star R Leporis (a variable) will be found in the position indicated in the map. Still keeping within the boundary of our map, we may next turn to the fine cluster 2 H (vii.) in Monoceros. This cluster is visible to the naked eye, and will be easily found. The nebula 2 H (iv.) is a remarkable one with a powerful telescope. The star 11 Monocerotis is a fine triple star described by the elder Herschel as one of the finest sights in the heavens. Our observer, |
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