We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
sleep NighttimeWhat's Visible Now?
All Constellations » Boötes » 

ψ Boötis (psi Boötis)

Altitude: 10.5°   Azimuth: 59.6°   Direction: East-North-East

ψ Boötis is a giant star in the constellation of Boötes.

ψ Boötis visual magnitude is 4.54. Because of its moderate brightness, ψ Boötis 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 ψ Boötis is -0.174 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ψ Boötis (psi Boötis) star
DSS2 image of ψ Boötis. The red arrow shows the motion of ψ Boötis during the next 1000 years (-2.90 arcmin in Right Ascension and -0.10 arcmin in declination);

Key facts about ψ Boötis

4.54
Giant

ψ Boötis (psi Boötis) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 10.5°
Azimuth: 59.6°
Direction: East-North-East

Celestial coordinates and finder chart of ψ Boötis

ψ Boötis 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 ψ Boötis are provided in the following table:

15h 04m 26s
+26° 56’ 51”
40.32°
60.47°
Boötes

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

Finder chart ψ Boötis (psi Boötis) star
Simplified finder chart for ψ Boötis (psi Boötis).

Visibility of ψ 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 ψ Boötis (psi 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: 63.1°
Max altitude: 65.5°
Azimuth: 296.9°

Distance of ψ Boötis from the Sun and relative movement

ψ Boötis is distant 250.00 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

76.69 pc
250.00 ly
-26 km/s
-0.174 arcsec/year
-0.006 arcsec/year

Spectral properties of ψ Boötis

ψ Boötis belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

0.12
K2III
4232K

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

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

Alternative designations of ψ Boötis

ψ Boötis
(psi Boötis)
SAO83645
SAO83645