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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: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
sunny DaytimeWhat's Visible Now?
All Constellations » Boötes » 

22 Boötis

Altitude: 19.7°   Azimuth: 83.5°   Direction: East

22 Boötis is a hypergiant star in the constellation of Boötes.

22 Boötis visual magnitude is 5.39. Because of its reltive faintness, 22 Boötis should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 22 Boötis is -0.071 arcsec per year in Right Ascension and 0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 22 Boötis star
DSS2 image of 22 Boötis. The red arrow shows the motion of 22 Boötis during the next 10000 years (-11.83 arcmin in Right Ascension and 4.17 arcmin in declination);

Key facts about 22 Boötis

5.39
Hypergiant

22 Boötis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 19.7°
Azimuth: 83.5°
Direction: East

Celestial coordinates and finder chart of 22 Boötis

22 Boötis 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 22 Boötis are provided in the following table:

14h 26m 27s
+19° 13’ 36”
18.06°
66.82°
Boötes

The simplified sky map below shows the position of 22 Boötis in the sky:

Finder chart 22 Boötis star
Simplified finder chart for 22 Boötis.

Visibility of 22 Boötis 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 22 Boötis 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: 70.8°
Max altitude: 57.7°
Azimuth: 289.2°

Distance of 22 Boötis from the Sun and relative movement

22 Boötis is distant 286.47 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

87.87 pc
286.47 ly
-28 km/s
-0.071 arcsec/year
0.025 arcsec/year

Spectral properties of 22 Boötis

22 Boötis belongs to spectral class F0

0.67
F0
7938K

The red dot in the diagram below shows where 22 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 22 Boötis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 22 Boötis

SAO101025
SAO101025