γ Ophiuchi (gamma Ophiuchi)

Below the horizon. Rise: 12:45 | Tran: 18:56 | Set: 1:12

Alt: -35.69° Az: 354.55° Direction: North

γ Ophiuchi is a hypergiant star of spectral class A0 in the constellation of Ophiuchus.

γ Ophiuchi visual magnitude is 3.75. Because of its moderate brightness, γ 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.

Image of γ Ophiuchi (gamma Ophiuchi) star

DSS2 image of γ Ophiuchi. The red arrow shows the motion of γ Ophiuchi during the next 10000 years (-3.67 arcmin in Right Ascension and -12.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 49m 08s

Declination +02° 42’ 01”

Hour Angle 11h 42m 16s

Sideral Time 05h 31m 24s

J2000

Right Ascension 17h 47m 53s

Declination +02° 42’ 25”

Galactic Coordinates

Galactic Longitude 28.02°

Galactic Latitude 15.36°

Finder Chart

Simplified finder chart for γ Ophiuchi (gamma Ophiuchi).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.75

Class Hypergiant

Absolute magnitude 1.43

Spectral Type A0V

Color Index (B-V) 0.04

Temperature 9652K

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

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

Distance, Radial Speed, Proper Motion

γ Ophiuchi is distant 94.71 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 29.05

Distance (light year) 94.71

Radial Speed -7 km/s

Proper Motion RA -0.022 arcsec/y

Proper Motion Dec -0.074"/y

Alternative Designations

Bayer designation γ Ophiuchi
(gamma Ophiuchi)

Flamsteed designation 62 Ophiuchi

Henry Draper Catalogue HD161868

SAO Catalogue SAO122754

Hipparcos Catalogue HIP87108

Durchmusterung Catalogue BD+02 3403

FK5 Catalogue 668

Visibility from Your Location

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

Azimuth: 87.3° RISE 12:45

Max altitude: 41.2° TRANSIT 18:56

Azimuth: 272.7° SET 1:12

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Ophiuchus