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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 » 

44 Boötis

Altitude: 23.4°   Azimuth: 41.5°   Direction: North-East

44 Boötis is a variable and double main-sequence star in the constellation of Boötes.

44 Boötis visual magnitude is 4.76. Because of its moderate brightness, 44 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 44 Boötis is -0.407 arcsec per year in Right Ascension and 0.033 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 44 Boötis star
DSS2 image of 44 Boötis. The red arrow shows the motion of 44 Boötis during the next 1000 years (-6.78 arcmin in Right Ascension and 0.55 arcmin in declination);

Key facts about 44 Boötis

4.76
Main-sequence

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

Altitude: 23.4°
Azimuth: 41.5°
Direction: North-East

Celestial coordinates and finder chart of 44 Boötis

44 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 44 Boötis are provided in the following table:

15h 03m 47s
+47° 39’ 15”
80.36°
57.06°
Boötes

The simplified sky map below shows the position of 44 Boötis in the sky:

Finder chart 44 Boötis star
Simplified finder chart for 44 Boötis.

Visibility of 44 Boötis from your location

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

44 Boötis is circumpolar and transits at 05:01 UTC (altitude: 86.2°)

Distance of 44 Boötis from the Sun and relative movement

44 Boötis is distant 41.59 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

12.76 pc
41.59 ly
-25 km/s
-0.407 arcsec/year
0.033 arcsec/year

Spectral properties of 44 Boötis

44 Boötis belongs to spectral class F9 and has a luminosity class of V corresponding to a main-sequence star.

4.23
F9V
5778K

The red dot in the diagram below shows where 44 Boötis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 44 Boötis. Attribution: Richard Powell / CC BY-SA

44 Boötis star system properties

44 Boötis is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 44 Boötis double sysyem:

4.76
5.56
0.8
0.7 arcsec

Alternative designations of 44 Boötis

SAO45357
SAO45357
Gl 575 A