40Tau Lib
40Tau Lib
40Tau Lib is a B-type (Blue-White) star. It carries the designation 40Tau Lib.
Located approximately 366.9 light-years from Earth, 40Tau Lib resides within the broader disk of our Milky Way galaxy.
40Tau Lib is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
At an apparent magnitude of +3.66, 40Tau Lib is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its blue hue, which corresponds to a B-V color index of -0.177.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | -0.177 |
Observation
| Apparent Magnitude | +3.66 |
| Absolute Magnitude | -1.60 |
| Distance | 367 ly |
Position
| Right Ascension | 15h 38.66m |
| Declination | -29° 46.67′ |
Frequently Asked Questions
What type of star is 40Tau Lib?
40Tau Lib is a Class B — B-type (Blue-White) star.
How far is 40Tau Lib from Earth?
40Tau Lib is approximately 366.9 light-years from Earth.
Can you see 40Tau Lib with the naked eye?
With an apparent magnitude of 3.66, 40Tau Lib is visible to the naked eye.