V.24 galaxy in Coma Berenices chancel Optical diagrams showing light shone

Optical diagrams showing light shone through prisms and the resulting spectral patterns

Sally the dog

'Musicians in the Orchestra'

Two images: at the top

V.24 galaxy in Coma Berenices chancel Optical diagrams showing light shonePlate 12 figure 37 for the paper 'Observations of nebulae and clusters of stars, made at Slough, with a twenty feet reflector, between the years 1825 and 1833', by Sir John Frederick William Herschel, Philosophical Transactions of the Royal Society, v. 123 (1833), pp. 359 505. A study of the edge on galaxy V. 24 [NGC 4565] in Coma Berenices. Inscribed verso, in ink, 'V. 24 sweeps 407; 343 &c.' With right ascension and North polar distance. Original: