ζ Boötis (zeta Boötis)

Above the horizon. Rise: 14:32 | Tran: 21:41 | Set: 4:53

Alt: 1.41° Az: 69.68° Direction: South-West

ζ Boötis is a variable and multiple giant star of spectral class A2 in the constellation of Boötes.

ζ Boötis visual magnitude is 4.43. Because of its moderate brightness, ζ Boötis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of ζ Boötis. The red arrow shows the motion of ζ Boötis during the next 10000 years (8.83 arcmin in Right Ascension and -2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 14h 42m 21s

Declination +13° 37’ 13”

Hour Angle 16h 58m 51s

Sidereal Time 07h 41m 12s

J2000

Right Ascension 14h 41m 08s

Declination +13° 43’ 41”

Galactic Coordinates

Galactic Longitude 10.8°

Galactic Latitude 61.12°

Finder Chart

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Finder chart for ζ Boötis (zeta Boötis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.43

Class Giant

Spectral Type A2III

Color Index (B-V) 0.05

Temperature 9542K

Star System Properties

ζ Boötis is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the ζ Boötis double sysyem:

Main star magnitude 4.43

Secondary star magnitude 4.53

Magnitude difference 0.1

Separation 1.2 arcsec

Alternative Designations

Bayer designation ζ Boötis
(zeta Boötis)

Flamsteed designation 30 Boötis

Henry Draper Catalogue HD129247

SAO Catalogue SAO101145

Durchmusterung Catalogue BD+14 2770

General Catalogue of Variable Stars 6766

Aitken Double Star Catalogue ADS9343

Visibility from Your Location

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

Azimuth: 76.4° RISE 14:32

Max altitude: 52.1° TRANSIT 21:41

Azimuth: 283.6° SET 4:53

Set Location

Other stars in Boötes