9Tau1Ser
9Tau1Ser
9Tau1Ser is a M-type (Red) star. It carries the designation 9Tau1Ser.
Located approximately 689.5 light-years from Earth, 9Tau1Ser resides within the broader disk of our Milky Way galaxy.
9Tau1Ser is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
With an apparent magnitude of +5.16, 9Tau1Ser 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 red hue, which corresponds to a B-V color index of +1.650.
Physical Properties
| Spectral Class | Class M — M-type (Red) |
| Color Index (B−V) | 1.650 |
Observation
| Apparent Magnitude | +5.16 |
| Absolute Magnitude | -1.47 |
| Distance | 690 ly |
Position
| Right Ascension | 15h 25.79m |
| Declination | 15° 25.68′ |
Frequently Asked Questions
What type of star is 9Tau1Ser?
9Tau1Ser is a Class M — M-type (Red) star.
How far is 9Tau1Ser from Earth?
9Tau1Ser is approximately 689.6 light-years from Earth.
Can you see 9Tau1Ser with the naked eye?
With an apparent magnitude of 5.16, 9Tau1Ser is visible to the naked eye.