4 Aqr
4 Aqr
4 Aqr is a F-type (Yellow-White) star located in the constellation Aquarius. It carries the designation 4 Aqr.
Located approximately 198.0 light-years from Earth, 4 Aqr resides within the broader disk of our Milky Way galaxy.
4 Aqr is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.99, 4 Aqr 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 +0.464.
Physical Properties
| Spectral Class | Class F — F-type (Yellow-White) |
| Color Index (B−V) | 0.464 |
Observation
| Apparent Magnitude | +5.99 |
| Absolute Magnitude | 2.07 |
| Distance | 198 ly |
| Constellation | Aquarius |
Position
| Right Ascension | 20h 51.43m |
| Declination | -5° 37.60′ |
Frequently Asked Questions
What type of star is 4 Aqr?
4 Aqr is a Class F — F-type (Yellow-White) star.
How far is 4 Aqr from Earth?
4 Aqr is approximately 198.0 light-years from Earth.
Can you see 4 Aqr with the naked eye?
With an apparent magnitude of 5.99, 4 Aqr is visible to the naked eye.
What constellation is 4 Aqr in?
4 Aqr is located in the constellation Aquarius.