SP-404 Skylab's Astronomy and Space Sciences

Figure 4-29. Comet Kohoutek's visual magnitude before perihelion based on 231 ground-based observations from September 1 through December 28, 1973. The +, x, and o symbols are, respectively, visual, photographic, and image tube observations.

Figure 4-29. Comet Kohoutek's visual magnitude before perihelion based on 231 ground-based observations from September 1 through December 28, 1973. The +, x, and o symbols are, respectively, visual, photographic, and image tube observations.

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