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Updated: May 19, 2025
The catalogue which he then contributed to the "Philosophical Transactions" includes 2306 nebulae and star-clusters, of which 525 were discovered by himself. While engaged in this difficult task, Herschel discovered between three and four thousand double stars, which he described in the Memoirs of the Astronomical Society.
It does not trouble them at all to see the watery spheres that round themselves into being out of the vapors floating over us; they are nothing but raindrops. But if a planet can grow as a rain-drop grows, why then It was a great comfort to these timid folk when Lord Rosse's telescope resolved certain nebula into star-clusters.
A small, cushion-like kind, with the stems in tufts, owing to their producing offsets freely from the base, the tallest of them being about as high and as thick as a man's thumb. The tubercles are short, crowded, and hidden under the star-clusters of reddish-yellow spines. There are no central spines in this kind.
The well-known ``Trifid Nebula'' is also included in the field of the photograph, which covers a truly marvelous region, so intricate in its mingling of nebulæ, star-clusters, star-swarms, star-streams, and dark vacancies that no description can do it justice.
While I spoke a single nebula grew larger, brighter, and filled the entire space given throughout to the pictures presented to us; stars and star-clusters gradually fading away into remoter distance. This nebula, of spherical shape formed of coarser particles than the previous mist, and reflecting or radiating a more brilliant effulgence was in rapid whirling motion.
I also tried to make a telescope by purchasing a lens of about 2 ft. focus at an optician's in Swansea, fixing it in a paper tube and using the eye-piece of a small opera-glass. With it I was able to observe the moon and Jupiter's satellites, and some of the larger star-clusters; but, of course, very imperfectly.
Still other examples of the same phenomenon are found in other parts of the sky. Of course, in the case of compact star-clusters, it is assumed that all the members share a like motion of translation through space, and the same is probably true of dense star-swarms and star-clouds.
In 1802 he laid before the Royal Society a list of five thousand new stars, star-clusters, or other heavenly bodies which he had discovered, and which formed the great body of his personal additions to astronomical knowledge. The University of Oxford made him Doctor of Laws, and very late in life he was knighted by the king a too tardy acknowledgment of his immense services to science.
Sometimes they stand in groups like star-clusters, as in Oji, crowning a hill; sometimes, as at Mukojima, they line an avenue for miles, dividing the blue river on the one hand from the blue-green rice-fields on the other, a floral milky way of light. But wherever the trees may be, there at their flowering season are to be found throngs of admirers.
These light clouds, or what seem to be such, seen in a clear sky, are, like the "Milky Way," visible nebulæ, or star-clusters, at such vast distance from the earth as to have by combination this effect upon our vision.
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