TBC
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There are several other noteworthy stars in Eridanus, including some double stars. Beta Eridani,
traditionally called Cursa, is a blue-white star of magnitude 2.8, 89
light-years from Earth. Its place to the south of Orion's foot gives it
its name, which means "the footstool". Theta Eridani,
called Acamar, is a binary star with blue-white components,
distinguishable in small amateur telescopes and 161 light-years from
Earth. The primary is of magnitude 3.2 and the secondary is of magnitude
4.3. 32 Eridani
is a binary star 290 light-years from Earth. The primary is a
yellow-hued star of magnitude 4.8 and the secondary is a blue-green star
of magnitude 6.1. 32 Eridani is divisible in small amateur telescopes. 39 Eridani
is a binary star also divisible in small amateur telescopes, 206
light-years from Earth.
The primary is an orange-hued giant star of
magnitude 4.9 and the secondary is of magnitude 8. 40 Eridani is a triple star system consisting of an orange main-sequence star, a white dwarf, and a red dwarf.
The orange main-sequence star is the primary of magnitude 4.4, and the
white secondary of magnitude 9.5 is the most easily visible white dwarf.
The red dwarf, of magnitude 11, orbits the white dwarf every 250 years.
The 40 Eridani system is 16 light-years from Earth. p Eridani
is a binary star with two orange components, 27 light-years from Earth.
The magnitude 5.8 primary and 5.9 secondary have an orbital period of
500 years.Epsilon Eridani (the proper name is Ran) is a star with one extrasolar planet similar to Jupiter. It is an orange-hued main-sequence star of magnitude 3.7, 10.5 light-years from Earth. Its one planet, with an approximate mass of one Jupiter mass, has a period of 7 years.
