HIP 21639
HIP 21639 is a F-type (Yellow-White) star located in the constellation Taurus.
Located approximately 426.9 light-years from Earth, HIP 21639 resides within the broader disk of our Milky Way galaxy.
HIP 21639 is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
HIP 21639 has an apparent magnitude of +9.89, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its white hue, which corresponds to a B-V color index of +0.480.
Physical Properties
| Spectral Class | F Class F — F-type (Yellow-White) |
| Color Index (B−V) | 0.480 |
Observation
| Apparent Magnitude | +9.89 |
| Absolute Magnitude | 4.30 |
| Distance | 427 ly |
| Constellation | Taurus |
Position
| Right Ascension | 4h 38.87m |
| Declination | 20° 46.84′ |
Frequently Asked Questions
What type of star is HIP 21639?
HIP 21639 is a Class F — F-type (Yellow-White) star.
How far is HIP 21639 from Earth?
HIP 21639 is approximately 426.9 light-years from Earth.
Can you see HIP 21639 with the naked eye?
With an apparent magnitude of 9.89, HIP 21639 is not visible to the naked eye.
What constellation is HIP 21639 in?
HIP 21639 is located in the constellation Taurus.