53 Ophiuchi

Below the horizon. Rise: 1:02 | Tran: 7:49 | Set: 14:36

Alt: -22.90° Az: 325.14° Direction: North-West

53 Ophiuchi is a multiple main-sequence star of spectral class A2 in the constellation of Ophiuchus.

53 Ophiuchi visual magnitude is 5.81. Because of its faintness, 53 Ophiuchi is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 53 Ophiuchi. The red arrow shows the motion of 53 Ophiuchi during the next 100000 years (8.33 arcmin in Right Ascension and -13.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 35m 48s

Declination +09° 34’ 17”

Hour Angle 09h 50m 55s

Sidereal Time 03h 26m 43s

J2000

Right Ascension 17h 34m 36s

Declination +09° 35’ 12”

Galactic Coordinates

Galactic Longitude 32.95°

Galactic Latitude 21.39°

Finder Chart

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Finder chart for 53 Ophiuchi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.81

Class Main-sequence

Absolute magnitude 0.71

Spectral Type A2V

Color Index (B-V) 0.02

Temperature 9882K

The red dot in the diagram below shows where 53 Ophiuchi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 53 Ophiuchi. Attribution: Richard Powell / CC BY-SA

Star System Properties

53 Ophiuchi is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 53 Ophiuchi double sysyem:

Main star magnitude 5.81

Secondary star magnitude 7.81

Magnitude difference 2

Separation 41.3 arcsec

Distance, Radial Speed, Proper Motion

53 Ophiuchi is distant 341.72 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 104.82

Distance (light year) 341.72

Radial Speed -14 km/s

Proper Motion RA 0.005 arcsec/y

Proper Motion Dec -0.008"/y

Alternative Designations

Flamsteed designation 53 Ophiuchi

Henry Draper Catalogue HD159480

SAO Catalogue SAO122526

Hipparcos Catalogue HIP85998

Durchmusterung Catalogue BD+09 3424

Aitken Double Star Catalogue ADS10635

Visibility from Your Location

Today's 53 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 80.4° RISE 1:02

Max altitude: 48.1° TRANSIT 7:49

Azimuth: 279.6° SET 14:36

Set Location

Other stars in Ophiuchus