4 Sco
4 Sco
4 Sco is a A-type (White) star located in the constellation Scorpius. It carries the designation 4 Sco.
Located approximately 408.2 light-years from Earth, 4 Sco resides within the broader disk of our Milky Way galaxy.
4 Sco is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.63, 4 Sco 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-white hue, which corresponds to a B-V color index of +0.141.
Physical Properties
| Spectral Class | Class A — A-type (White) |
| Color Index (B−V) | 0.141 |
Observation
| Apparent Magnitude | +5.63 |
| Absolute Magnitude | 0.14 |
| Distance | 408 ly |
| Constellation | Scorpius |
Position
| Right Ascension | 15h 55.50m |
| Declination | -26° 15.96′ |
Frequently Asked Questions
What type of star is 4 Sco?
4 Sco is a Class A — A-type (White) star.
How far is 4 Sco from Earth?
4 Sco is approximately 408.2 light-years from Earth.
Can you see 4 Sco with the naked eye?
With an apparent magnitude of 5.63, 4 Sco is visible to the naked eye.
What constellation is 4 Sco in?
4 Sco is located in the constellation Scorpius.