58 Ophiuchi

Above the horizon. Rise: 23:13 | Tran: 3:16 | Set: 7:15

Alt: 15.71° Az: 165.93° Direction: South-South-East

58 Ophiuchi is a double main-sequence star of spectral class F6 in the constellation of Ophiuchus.

58 Ophiuchi visual magnitude is 4.87. Because of its moderate brightness, 58 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 58 Ophiuchi. The red arrow shows the motion of 58 Ophiuchi during the next 1000 years (-1.58 arcmin in Right Ascension and -0.72 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 44m 57s

Declination -21° 41’ 35”

Hour Angle 23h 01m 39s

Sidereal Time 16h 46m 36s

J2000

Right Ascension 17h 43m 25s

Declination -21° 40’ 59”

Galactic Coordinates

Galactic Longitude 5.94°

Galactic Latitude 4.21°

Finder Chart

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Finder chart for 58 Ophiuchi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.87

Class Main-sequence

Absolute magnitude 3.65

Spectral Type F6V

Color Index (B-V) 0.47

Temperature 6528K

The red dot in the diagram below shows where 58 Ophiuchi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 58 Ophiuchi. Attribution: Richard Powell / CC BY-SA

Star System Properties

58 Ophiuchi is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 58 Ophiuchi double sysyem:

Main star magnitude 4.87

Secondary star magnitude 6.67

Magnitude difference 1.8

Separation 0 arcsec

Distance, Radial Speed, Proper Motion

58 Ophiuchi is distant 57.19 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 17.54

Distance (light year) 57.19

Radial Speed 11 km/s

Proper Motion RA -0.095 arcsec/y

Proper Motion Dec -0.043"/y

Alternative Designations

Flamsteed designation 58 Ophiuchi

Henry Draper Catalogue HD160915

SAO Catalogue SAO185660

Hipparcos Catalogue HIP86736

Durchmusterung Catalogue BD-21 4712

Gliese Catalogue Gl 692

FK5 Catalogue 1463

Visibility from Your Location

Today's 58 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.7° RISE 23:13

Max altitude: 16.8° TRANSIT 3:16

Azimuth: 248.3° SET 7:15

Set Location

Other stars in Ophiuchus