ρ Coronae Borealis (rho Coronae Borealis)

Above the horizon. Rise: 13:37 | Tran: 23:16 | Set: 8:58

Alt: 68.29° Az: 219.10° Direction: South-West

ρ Coronae Borealis is a double hypergiant star of spectral class G0 in the constellation of Corona Borealis.

ρ Coronae Borealis visual magnitude is 5.41. Because of its faintness, ρ Coronae Borealis 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.

Image of ρ Coronae Borealis (rho Coronae Borealis) star

DSS2 image of ρ Coronae Borealis. The red arrow shows the motion of ρ Coronae Borealis during the next 1000 years (-3.20 arcmin in Right Ascension and -12.77 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 02m 01s

Declination +33° 14’ 00”

Hour Angle 01h 04m 47s

Sidereal Time 17h 06m 48s

J2000

Right Ascension 16h 01m 02s

Declination +33° 18’ 12”

Galactic Coordinates

Galactic Longitude 53.51°

Galactic Latitude 48.92°

Finder Chart

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Finder chart for ρ Coronae Borealis (rho Coronae Borealis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.41

Class Hypergiant

Absolute magnitude 4.20

Spectral Type G0V

Color Index (B-V) 0.6

Temperature 5968K

The red dot in the diagram below shows where ρ Coronae Borealis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of ρ Coronae Borealis. Attribution: Richard Powell / CC BY-SA

Star System Properties

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

Main star magnitude 5.41

Secondary star magnitude 8.61

Magnitude difference 3.2

Separation 89.6 arcsec

Distance, Radial Speed, Proper Motion

ρ Coronae Borealis is distant 56.81 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 17.43

Distance (light year) 56.81

Radial Speed 18 km/s

Proper Motion RA -0.192 arcsec/y

Proper Motion Dec -0.766"/y

Alternative Designations

Bayer designation ρ Coronae Borealis
(rho Coronae Borealis)

Flamsteed designation 15 Coronae Borealis

Henry Draper Catalogue HD143761

SAO Catalogue SAO65024

Hipparcos Catalogue HIP78459

Durchmusterung Catalogue BD+33 2663

Gliese Catalogue Gl 606.2

Visibility from Your Location

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

Azimuth: 56.8° RISE 13:37

Max altitude: 71.8° TRANSIT 23:16

Azimuth: 303.2° SET 8:58

Set Location

Other stars in Corona Borealis