For the first time, astronomers have detected Cepheids in the Sculptor group galaxy NGC 55 and used these cosmic yardsticks to measure its distance. That distance matches the distance of the spiral galaxy NGC 300, suggesting the two galaxies may orbit each other.

The Sculptor group is the nearest galaxy group to the Local Group and contains five major galaxies: NGC 55, NGC 247, NGC 253, NGC 300, and NGC 7793. Except for NGC 247, all of these galaxies reside in the constellation Sculptor, hence the group's name.
The Cepheids reveal that the distance to NGC 55 is 6.2 million light-years, nearly the same as the distance to the spiral NGC 300.

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Er, and this

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`Irony` actually does mean `metal like`...