nemfrog:Plate 14. “Lord Rosse’s Whirlpool or Spiral Nebula.” The mechanism of the heavens. 1853.Inte
nemfrog:Plate 14. “Lord Rosse’s Whirlpool or Spiral Nebula.” The mechanism of the heavens. 1853.Internet Archive -- source link
nemfrog:Plate 14. “Lord Rosse’s Whirlpool or Spiral Nebula.” The mechanism of the heavens. 1853.Internet Archive -- source link