1Tau1Eri
1Tau1Eri
1Tau1Eri is a F-type (Yellow-White) star. It carries the designation 1Tau1Eri.
1Tau1Eri lies approximately 46.4 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 46 years ago.
1Tau1Eri is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.47, 1Tau1Eri 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 white hue, which corresponds to a B-V color index of +0.481.
Physical Properties
| Spectral Class | Class F — F-type (Yellow-White) |
| Color Index (B−V) | 0.481 |
Observation
| Apparent Magnitude | +4.47 |
| Absolute Magnitude | 3.70 |
| Distance | 46.4 ly |
Position
| Right Ascension | 2h 45.10m |
| Declination | -18° 34.35′ |
Frequently Asked Questions
What type of star is 1Tau1Eri?
1Tau1Eri is a Class F — F-type (Yellow-White) star.
How far is 1Tau1Eri from Earth?
1Tau1Eri is approximately 46.4 light-years from Earth.
Can you see 1Tau1Eri with the naked eye?
With an apparent magnitude of 4.47, 1Tau1Eri is visible to the naked eye.