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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:23 
Transit: 12:45 
Sunset: 18:07
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All Constellations » Corona Borealis » 

ζ1 Coronae Borealis (zeta1 Coronae Borealis)

Above the horizon.  Rise: 4:34 | Tran: 15:05 | Set: 1:41
Alt: 67.55°   Az: 237.58°   Direction: West-South-West

ζ1 Coronae Borealis is a double main-sequence star of spectral class B9 in the constellation of Corona Borealis.

ζ1 Coronae Borealis visual magnitude is 6. Because of its faintness, ζ1 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 ζ1 Coronae Borealis (zeta1 Coronae Borealis) star
DSS2 image of ζ1 Coronae Borealis. The red arrow shows the motion of ζ1 Coronae Borealis during the next 10000 years (-2.33 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

15h 40m 18s
+36° 33’ 26”
01h 34m 37s
17h 14m 55s

J2000

15h 39m 22s
+36° 38’ 12”

Galactic Coordinates

58.7°
53.41°

Finder Chart

Finder chart ζ1 Coronae Borealis (zeta1 Coronae Borealis) star
Simplified finder chart for ζ1 Coronae Borealis (zeta1 Coronae Borealis).

Magnitude, Color, Spectral Class

6
Main-sequence

0.19
B9V
10125K

The red dot in the diagram below shows where ζ1 Coronae Borealis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ζ1 Coronae Borealis. Attribution: Richard Powell / CC BY-SA

Star System Properties

ζ1 Coronae Borealis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ζ1 Coronae Borealis double sysyem:

6
7
1
6.4 arcsec

Distance, Radial Speed, Proper Motion

ζ1 Coronae Borealis is distant 473.15 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

145.14
473.15
-19 km/s
-0.014 arcsec/y
-0.013"/y

Alternative Designations

ζ1 Coronae Borealis
(zeta1 Coronae Borealis)
7 Coronae Borealis
SAO64833
SAO64833

Visibility from Your Location

Today's ζ1 Coronae Borealis (zeta1 Coronae Borealis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 53.4°
Max altitude: 75.1°
Azimuth: 306.6°