Al·​phe·​ratz al-ˈfē-ˌrats How to pronounce Alpheratz (audio)
: a white binary star of the second magnitude that is the brightest star in the constellation Andromeda
Only a bit more than one day past full, the waning gibbous moon rises shortly after dark almost exactly at the Vernal Equinox, in the constellation Pisces. Mark the moon's position relative to Alpheratz and Algenib, the two stars along the eastern (left hand) edge of the Square, and you can easily remember from those stars where the Vernal Equinox is located.Thomas D. Nicholson, Christian Science Monitor, 26 Aug. 1982

called also Alpha Andromedae

Word History

First Known Use

1807, in the meaning defined above

Time Traveler
The first known use of Alpheratz was in 1807

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Alpheratz

Cite this Entry

“Alpheratz.” Dictionary, Merriam-Webster, Accessed 17 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!