1 Sco
1 Sco
1 Sco is a B-type (Blue-White) star located in the constellation Scorpius. It carries the designation 1 Sco.
Located approximately 494.9 light-years from Earth, 1 Sco resides within the broader disk of our Milky Way galaxy.
1 Sco is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.63, 1 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 hue, which corresponds to a B-V color index of -0.072.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | -0.072 |
Observation
| Apparent Magnitude | +4.63 |
| Absolute Magnitude | -1.28 |
| Distance | 495 ly |
| Constellation | Scorpius |
Position
| Right Ascension | 15h 50.98m |
| Declination | -25° 45.08′ |
Frequently Asked Questions
What type of star is 1 Sco?
1 Sco is a Class B — B-type (Blue-White) star.
How far is 1 Sco from Earth?
1 Sco is approximately 494.9 light-years from Earth.
Can you see 1 Sco with the naked eye?
With an apparent magnitude of 4.63, 1 Sco is visible to the naked eye.
What constellation is 1 Sco in?
1 Sco is located in the constellation Scorpius.