71 Ophiuchi

Above the horizon. Rise: 20:18 | Tran: 3:04 | Set: 9:47

Alt: 46.75° Az: 191.61° Direction: South-South-West

71 Ophiuchi is a giant star of spectral class G8 in the constellation of Ophiuchus.

71 Ophiuchi visual magnitude is 4.64. Because of its moderate brightness, 71 Ophiuchi is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 71 Ophiuchi. The red arrow shows the motion of 71 Ophiuchi during the next 10000 years (1.83 arcmin in Right Ascension and 5.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 08m 31s

Declination +08° 44’ 19”

Hour Angle 00h 32m 05s

Sidereal Time 18h 40m 36s

J2000

Right Ascension 18h 07m 18s

Declination +08° 44’ 02”

Galactic Coordinates

Galactic Longitude 35.82°

Galactic Latitude 13.74°

Finder Chart

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Finder chart for 71 Ophiuchi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.64

Class Giant

Absolute magnitude 0.33

Spectral Type G8III

Color Index (B-V) 0.96

Temperature 4841K

The red dot in the diagram below shows where 71 Ophiuchi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 71 Ophiuchi. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

71 Ophiuchi is distant 237.78 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 72.94

Distance (light year) 237.78

Radial Speed -3 km/s

Proper Motion RA 0.011 arcsec/y

Proper Motion Dec 0.032"/y

Alternative Designations

Flamsteed designation 71 Ophiuchi

Henry Draper Catalogue HD165760

SAO Catalogue SAO123140

Hipparcos Catalogue HIP88765

Durchmusterung Catalogue BD+08 3582

Visibility from Your Location

Today's 71 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 81.3° RISE 20:18

Max altitude: 47.3° TRANSIT 3:04

Azimuth: 278.7° SET 9:47

Set Location

Other stars in Ophiuchus