45 Her
45 Her
45 Her is a B-type (Blue-White) star located in the constellation Hercules. It carries the designation 45 Her.
Located approximately 393.4 light-years from Earth, 45 Her resides within the broader disk of our Milky Way galaxy.
45 Her is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.22, 45 Her 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 blue hue, which corresponds to a B-V color index of -0.001.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | -0.001 |
Observation
| Apparent Magnitude | +5.22 |
| Absolute Magnitude | -0.19 |
| Distance | 393 ly |
| Constellation | Hercules |
Position
| Right Ascension | 16h 47.77m |
| Declination | 5° 14.80′ |
Frequently Asked Questions
What type of star is 45 Her?
45 Her is a Class B — B-type (Blue-White) star.
How far is 45 Her from Earth?
45 Her is approximately 393.4 light-years from Earth.
Can you see 45 Her with the naked eye?
With an apparent magnitude of 5.22, 45 Her is visible to the naked eye.
What constellation is 45 Her in?
45 Her is located in the constellation Hercules.