58 Ophiuchi

Altitude: 10.1° Azimuth: 145.8° Direction: South-East

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

58 Ophiuchi visual magnitude is 4.87. Because of its moderate brightness, 58 Ophiuchi should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 58 Ophiuchi:

Color of 58 Ophiuchi ⬤

Magnitude of 58 Ophiuchi 4.87

Class Main-sequence

VISIBILITY RIGHT NOW

58 Ophiuchi is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 10.1°
Azimuth: 145.8°
Direction: South-East

Celestial coordinates and finder chart of 58 Ophiuchi

58 Ophiuchi is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 58 Ophiuchi are provided in the following table:

Right Ascension J2000 17h 43m 25s

Declination J2000 -21° 40’ 59”

Galactic Longitude 5.94°

Galactic Latitude 4.21°

Constellation Ophiuchus

The simplified sky map below shows the position of 58 Ophiuchi in the sky:

Simplified finder chart for 58 Ophiuchi.

Visibility of 58 Ophiuchi from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 111.7° RISE 8:44

Max altitude: 16.8° TRANSIT 12:43

Azimuth: 248.3° SET 16:42

Digitized Sky Survey image of 58 Ophiuchi

The image below is a photograph of 58 Ophiuchi from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 58 Ophiuchi is -0.095 arcsec per year in Right Ascension and -0.043 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

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);

Distance of 58 Ophiuchi from the Sun and relative movement

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 pc

Distance (light year) 57.19 ly

Heliocentric radial velocity 11 km/s

Proper Motion RA -0.095 arcsec/year

Proper Motion Dec -0.043 arcsec/year

Spectral properties of 58 Ophiuchi

58 Ophiuchi belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 3.65

Spectral Type F6V

Color Index (B-V) 0.47

Temperature of 58 Ophiuchi 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

58 Ophiuchi 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

Alternative designations of 58 Ophiuchi

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

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