Muphrid - η Boötis (eta Boötis)

Below the horizon. Rise: 14:53 | Tran: 22:29 | Set: 6:08

Alt: -4.94° Az: 307.88° Direction: North-West

Muphrid, also designated as η Boötis (eta Boötis), is a double hypergiant star of spectral class G0 in the constellation of Boötes.

Muphrid visual magnitude is 2.68. Because of its brightness, Muphrid is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Muphrid - η Boötis (eta Boötis) star

DSS2 image of Muphrid. The red arrow shows the motion of Muphrid during the next 1000 years (-1.05 arcmin in Right Ascension and -5.97 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 55m 53s

Declination +18° 16’ 25”

Hour Angle 08h 16m 20s

Sidereal Time 22h 12m 14s

J2000

Right Ascension 13h 54m 41s

Declination +18° 23’ 52”

Galactic Coordinates

Galactic Longitude 5.3°

Galactic Latitude 73.03°

Finder Chart

Loading map...

Finder chart for Muphrid - η Boötis (eta Boötis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 2.68

Class Hypergiant

Absolute magnitude 2.41

Spectral Type G0IV

Color Index (B-V) 0.58

Temperature 6047K

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

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

Star System Properties

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

Main star magnitude 2.68

Secondary star magnitude 8.68

Magnitude difference 6

Separation 112.6 arcsec

Distance, Radial Speed, Proper Motion

Muphrid is distant 36.97 light years from the Sun

Distance (parsec) 11.34

Distance (light year) 36.97

Proper Motion RA -0.063 arcsec/y

Proper Motion Dec -0.358"/y

Alternative Designations

Proper Name Muphrid

Bayer designation η Boötis
(eta Boötis)

Flamsteed designation 8 Boötis

Henry Draper Catalogue HD121370

SAO Catalogue SAO100766

Hipparcos Catalogue HIP67927

Durchmusterung Catalogue BD+19 2725

Gliese Catalogue Gl 534

FK5 Catalogue 513

Visibility from Your Location

Today's Muphrid - η Boötis (eta Boötis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 71.7° RISE 14:53

Max altitude: 56.8° TRANSIT 22:29

Azimuth: 288.3° SET 6:08

Set Location

Other stars in Boötes