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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
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All Constellations » Boötes » 

Xuange - λ Boötis (lambda Boötis)

Altitude: 29.8°   Azimuth: 52.1°   Direction: North-East

Xuange, also designated as λ Boötis (lambda Boötis), is a variable hypergiant star in the constellation of Boötes.

Xuange visual magnitude is 4.18. Because of its moderate brightness, Xuange should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of Xuange is -0.187 arcsec per year in Right Ascension and 0.161 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of Xuange - λ Boötis (lambda Boötis) star
DSS2 image of Xuange. The red arrow shows the motion of Xuange during the next 1000 years (-3.12 arcmin in Right Ascension and 2.68 arcmin in declination);

Key facts about Xuange


Xuange - λ Boötis (lambda Boötis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 29.8°
Azimuth: 52.1°
Direction: North-East

Celestial coordinates and finder chart of Xuange

Xuange is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Xuange are provided in the following table:

14h 16m 23s
+46° 05’ 17”

The simplified sky map below shows the position of Xuange in the sky:

Finder chart Xuange - λ Boötis (lambda Boötis) star
Simplified finder chart for Xuange - λ Boötis (lambda Boötis).

Visibility of Xuange from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Xuange - λ Boötis (lambda Boötis) is circumpolar and transits at 04:14 UTC (altitude: 84.6°)

Distance of Xuange from the Sun and relative movement

Xuange is distant 97.08 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

29.78 pc
97.08 ly
-8 km/s
-0.187 arcsec/year
0.161 arcsec/year

Spectral properties of Xuange

Xuange belongs to spectral class A0


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

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

Alternative designations of Xuange

λ Boötis
(lambda Boötis)