Xi Boötis (ξ Boo)
Xi Boötis (ξ Boo) is a double star in the constellation Boötes, magnitude 4.8.
A nearby binary of a yellow and an orange dwarf star. Its components (magnitudes 4.8 and 7.0; spectral types G8 V (yellow) and K5 V (orange)) lie 4.62″ apart at PA 286° (predicted for 2027.0 from its 152-year orbit).
When and where to see it
It is best placed in the evening sky around June, when it crosses the meridian at about 10 pm local time (around midnight in May). It can be seen from everywhere north of 71°S and never sets north of 71°N.
At its highest it stands 59° up from 50°N, 74° up from 35°N, 71° up from the equator, 36° up from 35°S.
Facts
- Type
- Double star
- Constellation
- Boötes
- Designations
- ξ Boo, 37 Boo, 37 Boötis, STF 1888, HIP 72659
- Magnitude
- 4.8
- Position
- RA 14h 51.4m, Dec +19° 6′ (J2000)
Open AstroPilot to see when Xi Boötis (ξ Boo) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.