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🌎  Greenwich, United Kingdom [change]

61 Ophiuchi

61 Ophiuchi is a multiple sub-giant star in the constellation of Ophiuchus.

61 Ophiuchi visual magnitude is 6.17. Because of its reltive faintness, 61 Ophiuchi should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 61 Ophiuchi:

6.17
Sub-giant
61 Ophiuchi is above the horizon from Greenwich, United Kingdom [change]. Altitude: 33°.

Celestial coordinates and finder chart of 61 Ophiuchi

61 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 61 Ophiuchi are provided in the following table:

17h 44m 34s
+02° 34’ 45”
27.5°
16.04°
Ophiuchus

The simplified sky map below shows the position of 61 Ophiuchi in the sky:

Finder chart 61 Ophiuchi star
Simplified finder chart for 61 Ophiuchi.

Visibility of 61 Ophiuchi from your location

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

Today's 61 Ophiuchi rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 87.4°
Max altitude: 41.1°
Azimuth: 272.6°
61 Ophiuchi is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 61 Ophiuchi

The image below is a photograph of 61 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 61 Ophiuchi is 0.004 arcsec per year in Right Ascension and 0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 61 Ophiuchi star
DSS2 image of 61 Ophiuchi. The red arrow shows the motion of 61 Ophiuchi during the next 10000 years (0.67 arcmin in Right Ascension and 2.33 arcmin in declination);

Distance of 61 Ophiuchi from the Sun and relative movement

61 Ophiuchi is distant 459.80 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

141.04 pc
459.80 ly
-31 km/s
0.004 arcsec/year
0.014 arcsec/year

Spectral properties of 61 Ophiuchi

61 Ophiuchi belongs to spectral class A1 and has a luminosity class of IV corresponding to a sub-giant star.

0.42
A1IV
9328K

The red dot in the diagram below shows where 61 Ophiuchi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 61 Ophiuchi. Attribution: Richard Powell / CC BY-SA

61 Ophiuchi star system properties

61 Ophiuchi is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 61 Ophiuchi double sysyem:

6.17
6.57
0.4
20.6 arcsec

Alternative designations of 61 Ophiuchi

61 Ophiuchi
SAO122690
SAO122690