18 Sgr
18 Sgr
18 Sgr is a K-type (Orange) star located in the constellation Sagittarius. It carries the designation 18 Sgr.
Located approximately 639.5 light-years from Earth, 18 Sgr resides within the broader disk of our Milky Way galaxy.
18 Sgr is classified as a spectral class K star (K-type (Orange)) on the Harvard spectral classification system.
With an apparent magnitude of +5.58, 18 Sgr 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 orange hue, which corresponds to a B-V color index of +1.138.
Physical Properties
| Spectral Class | Class K — K-type (Orange) |
| Color Index (B−V) | 1.138 |
Observation
| Apparent Magnitude | +5.58 |
| Absolute Magnitude | -0.88 |
| Distance | 640 ly |
| Constellation | Sagittarius |
Position
| Right Ascension | 18h 25.02m |
| Declination | -30° 45.39′ |
Frequently Asked Questions
What type of star is 18 Sgr?
18 Sgr is a Class K — K-type (Orange) star.
How far is 18 Sgr from Earth?
18 Sgr is approximately 639.5 light-years from Earth.
Can you see 18 Sgr with the naked eye?
With an apparent magnitude of 5.58, 18 Sgr is visible to the naked eye.
What constellation is 18 Sgr in?
18 Sgr is located in the constellation Sagittarius.