44 Boötis

Below the horizon. Rise: 13:48 | Tran: 21:13 | Set: 4:34

Alt: -16.00° Az: 334.21° Direction: South-West

44 Boötis is a variable and double main-sequence star of spectral class F9 in the constellation of Boötes.

44 Boötis visual magnitude is 4.76. Because of its moderate brightness, 44 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 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);

Celestial Coordinates

Apparent

Right Ascension 15h 04m 38s

Declination +47° 33’ 21”

Hour Angle 09h 26m 50s

Sidereal Time 00h 31m 29s

J2000

Right Ascension 15h 03m 47s

Declination +47° 39’ 15”

Galactic Coordinates

Galactic Longitude 80.36°

Galactic Latitude 57.06°

Finder Chart

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Finder chart for 44 Boötis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.76

Class Main-sequence

Absolute magnitude 4.23

Spectral Type F9V

Color Index (B-V) 0.65

Temperature 5778K

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

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

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:

Main star magnitude 4.76

Secondary star magnitude 5.56

Magnitude difference 0.8

Separation 0.7 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 12.76

Distance (light year) 41.59

Radial Speed -25 km/s

Proper Motion RA -0.407 arcsec/y

Proper Motion Dec 0.033"/y

Alternative Designations

Flamsteed designation 44 Boötis

Henry Draper Catalogue HD133640

SAO Catalogue SAO45357

Hipparcos Catalogue HIP73695

Durchmusterung Catalogue BD+48 2259

Gliese Catalogue Gl 575 A

General Catalogue of Variable Stars i Boo

Aitken Double Star Catalogue ADS9494

Visibility from Your Location

Today's 44 Boötis rise, transit and set times from New Kingston, Jamaica are the following (all times relative to the local timezone America/Jamaica):

Azimuth: 42.4° RISE 13:48

Max altitude: 60.5° TRANSIT 21:13

Azimuth: 317.6° SET 4:34

Name:	New Kingston, Jamaica
Latitude:	18° 0' 27.0" N
Longitude:	76° 46' 59.5" W
Timezone:	America/Jamaica

Set Location

Other stars in Boötes