• Corpus ID: 129940114

The M51 mystery: Lord Rosse, Robinson, South and the discovery of spiral structure in 1845

@article{Steinicke2012TheMM,
  title={The M51 mystery: Lord Rosse, Robinson, South and the discovery of spiral structure in 1845},
  author={Wolfgang H Steinicke},
  journal={Journal of Astronomical History and Heritage},
  year={2012},
  volume={15},
  pages={19}
}
  • W. Steinicke
  • Published 1 March 2012
  • Physics
  • Journal of Astronomical History and Heritage
In April 1845 Lord Rosse discovered the spiral structure of M51 with his 72-inch reflector at Birr Castle. Already in March the new telescope had been pointed at the object in Canes Venatici, later nicknamed the ‘Whirlpool Nebula’. Two experienced astronomers were present: Sir James South and the Reverend Thomas Romney Robinson. The problem is that there is no record that they noticed the spiral structure, even though it was immediately seen by Lord Rosse the next month. The solution presented… 

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References

SHOWING 1-10 OF 21 REFERENCES

Unwinding the discovery of spiral nebulae

William Parsons, the Third Earl of Rosse, in April 1845 within a few months of the first trial of his great six-foot reflector the “Leviathan of Parsonstown” on 11 February 1845. Despite the

The Nineteenth-Century Spiral Nebula Whodunit

The discovery of the first spiral nebula was a milestone in the history of astronomy, but the initial observations of it are shrouded in mystery. The discovery came within months of the commissioning

Lord Rosse's Telescope

IN an article in the Times newspaper there occurs the passage—“With regard to the mighty mirror of the Parsons-town reflector M. Struve has spoken in no very complimentary terms. It was said of Sir

XIX. Observations of nebulæ and clusters of stars, made at Slough, with a twenty-feet reflector, between the years 1825 and 1833

  • J. Herschel
  • Physics
    Philosophical Transactions of the Royal Society of London
  • 1833
The following sheets contain the results of observations begun about the year 1825, and prosecuted with more or less assiduity from that time up to the commencement of the present year, in pursuance

“On the Power of Penetrating into Space”: The Telescopes of William Herschel

For a time in the early history of sidereal astronomy, before the advent of new techniques such as photography and spectroscopy, it seemed that progress would depend on the size of optically sound

Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer's New General Catalogue

Preface 1. Introduction 2. William Herschel's observations and parallel activities 3. John Herschel's Slough observations 4. Discoveries made in parallel with John Herschel's Slough 5. John Herschel

IV. On nebulous stars, properly so called

  • W. Herschel
  • Physics
    Philosophical Transactions of the Royal Society of London
In one of my late examinations of a space in the heavens, which I had not reviewed before, I discovered a star of about the 8th magnitude, surrounded with a faintly luminous atmosphere, of a

Full-text search capability: a new tool for researching the development of scientific language. The ‘Whirlpool Nebula’ as a case study

  • W. Tobin
  • Physics
    Notes and Records of the Royal Society
  • 2008
Burgeoning numbers of books and periodicals from earlier centuries are becoming available in online databases such as the British Library Online Newspaper Archive, the Making of America collection,

Observations of nebulae