21 Eri

21 Eri

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21 Eri is a K-type (Orange) star. It carries the designation 21 Eri.

Located approximately 109.9 light-years from Earth, 21 Eri resides within the broader disk of our Milky Way galaxy.

21 Eri is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.

With an apparent magnitude of +5.97, 21 Eri sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its yellow hue, which corresponds to a B-V color index of +0.921.

Physical Properties

Spectral Class K Class K — K-type (Orange)
Color Index (B−V) 0.921

Observation

Apparent Magnitude +5.97
Absolute Magnitude 3.33
Distance 110 ly

Position

Right Ascension 3h 39.02m
Declination -5° 37.57′

Frequently Asked Questions

What type of star is 21 Eri?
21 Eri is a Class K — K-type (Orange) star.
How far is 21 Eri from Earth?
21 Eri is approximately 109.9 light-years from Earth.
Can you see 21 Eri with the naked eye?
With an apparent magnitude of 5.97, 21 Eri is visible to the naked eye.