Diadem
42Alp Com
Diadem is a F-type (Yellow-White) star. It carries the designation 42Alp Com.
Located approximately 58.1 light-years from Earth, Diadem resides within the broader disk of our Milky Way galaxy.
Diadem is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.32, Diadem 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 +0.455.
Physical Properties
| Spectral Class | Class F — F-type (Yellow-White) |
| Color Index (B−V) | 0.455 |
Observation
| Apparent Magnitude | +4.32 |
| Absolute Magnitude | 3.06 |
| Distance | 58.1 ly |
Position
| Right Ascension | 13h 9.99m |
| Declination | 17° 31.77′ |
Frequently Asked Questions
What type of star is Diadem?
Diadem is a Class F — F-type (Yellow-White) star.
How far is Diadem from Earth?
Diadem is approximately 58.1 light-years from Earth.
Can you see Diadem with the naked eye?
With an apparent magnitude of 4.32, Diadem is visible to the naked eye.