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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
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All Constellations » Ophiuchus » 

68 Ophiuchi

Altitude: 38.4°   Azimuth: 198.6°   Direction: South-South-West

68 Ophiuchi is a variable and double main-sequence star in the constellation of Ophiuchus.

68 Ophiuchi visual magnitude is 4.45. Because of its moderate brightness, 68 Ophiuchi should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of 68 Ophiuchi is 0.015 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 68 Ophiuchi star
DSS2 image of 68 Ophiuchi. The red arrow shows the motion of 68 Ophiuchi during the next 10000 years (2.50 arcmin in Right Ascension and -2.00 arcmin in declination);

Key facts about 68 Ophiuchi

4.45
Main-sequence

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

Altitude: 38.4°
Azimuth: 198.6°
Direction: South-South-West

Celestial coordinates and finder chart of 68 Ophiuchi

68 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 68 Ophiuchi are provided in the following table:

18h 01m 45s
+01° 18’ 19”
28.38°
11.64°
Ophiuchus

The simplified sky map below shows the position of 68 Ophiuchi in the sky:

Finder chart 68 Ophiuchi star
Simplified finder chart for 68 Ophiuchi.

Visibility of 68 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 68 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: 88.7°
Max altitude: 39.8°
Azimuth: 271.3°

Distance of 68 Ophiuchi from the Sun and relative movement

68 Ophiuchi is distant 264.83 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

81.23 pc
264.83 ly
6 km/s
0.015 arcsec/year
-0.012 arcsec/year

Spectral properties of 68 Ophiuchi

68 Ophiuchi belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

-0.10
A2V
9882K

The red dot in the diagram below shows where 68 Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 68 Ophiuchi. Attribution: Richard Powell / CC BY-SA

68 Ophiuchi star system properties

68 Ophiuchi is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 68 Ophiuchi double sysyem:

4.45
6.95
2.5
0.6 arcsec

Alternative designations of 68 Ophiuchi

68 Ophiuchi
SAO123035
SAO123035