53 Ophiuchi

Altitude: 11.3° Azimuth: 88.8° Direction: East

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

53 Ophiuchi visual magnitude is 5.81. Because of its reltive faintness, 53 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 53 Ophiuchi:

Color of 53 Ophiuchi ⬤

Magnitude of 53 Ophiuchi 5.81

Class Main-sequence

VISIBILITY RIGHT NOW

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

Altitude: 11.3°
Azimuth: 88.8°
Direction: East

Celestial coordinates and finder chart of 53 Ophiuchi

53 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 53 Ophiuchi are provided in the following table:

Right Ascension J2000 17h 34m 36s

Declination J2000 +09° 35’ 12”

Galactic Longitude 32.95°

Galactic Latitude 21.39°

Constellation Ophiuchus

The simplified sky map below shows the position of 53 Ophiuchi in the sky:

Simplified finder chart for 53 Ophiuchi.

Visibility of 53 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 53 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: 80.4° RISE 11:07

Max altitude: 48.1° TRANSIT 17:53

Azimuth: 279.6° SET 0:40

Digitized Sky Survey image of 53 Ophiuchi

The image below is a photograph of 53 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 53 Ophiuchi is 0.005 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

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);

Distance of 53 Ophiuchi from the Sun and relative movement

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 pc

Distance (light year) 341.72 ly

Heliocentric radial velocity -14 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of 53 Ophiuchi

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

Absolute magnitude 0.71

Spectral Type A2V

Color Index (B-V) 0.02

Temperature of 53 Ophiuchi 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

53 Ophiuchi 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

Alternative designations of 53 Ophiuchi

Flamsteed designation 53 Ophiuchi

Henry Draper Catalogue HD159480

SAO Catalogue SAO122526

Hipparcos Catalogue HIP85998

Durchmusterung Catalogue BD+09 3424

Aitken Double Star Catalogue ADS10635

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In Evidence

Other stars in Ophiuchus