NGC 1261

NGC 1261, also known as Caldwell 87, is a globular cluster in the constellation Horologium, first discovered by James Dunlop in 1826. ^[1]

7 relations: Billion years, Caldwell catalogue, Globular cluster, Horologium (constellation), Hubble Space Telescope, James Dunlop, Monthly Notices of the Royal Astronomical Society.

Billion years

A billion years (109 years) is a unit of time on the petasecond scale, more precisely equal to seconds.

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Caldwell catalogue

The Caldwell Catalogue is an astronomical catalogue of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers.

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Globular cluster

A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.

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Horologium (constellation)

Horologium is a faint constellation in the southern sky.

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Hubble Space Telescope

The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.

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James Dunlop

James Dunlop FRSE (31 October 1793 – 22 September 1848) was a Scottish astronomer, noted for his work in Australia.

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Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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Redirects here:

Caldwell 87.

References

[1] https://en.wikipedia.org/wiki/NGC_1261

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