Musica - 18 Delphini

Below the horizon. Rise: 22:41 | Tran: 5:39 | Set: 12:33

Alt: -7.32° Az: 62.06° Direction: East-North-East

Musica, also designated as 18 Delphini , is a multiple giant star of spectral class G6 in the constellation of Delphinus.

Musica visual magnitude is 5.48. Because of its faintness, Musica is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of Musica. The red arrow shows the motion of Musica during the next 10000 years (-8.50 arcmin in Right Ascension and -6.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 59m 39s

Declination +10° 56’ 19”

Hour Angle 16h 12m 42s

Sidereal Time 13h 12m 22s

J2000

Right Ascension 20h 58m 25s

Declination +10° 50’ 21”

Galactic Coordinates

Galactic Longitude 58.69°

Galactic Latitude -21.98°

Finder Chart

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Finder chart for Musica - 18 Delphini.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.48

Class Giant

Absolute magnitude 1.16

Spectral Type G6

Color Index (B-V) 0.93

Temperature 4917K

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

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

Star System Properties

Musica is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Musica double sysyem:

Main star magnitude 5.48

Secondary star magnitude 10.08

Magnitude difference 4.6

Separation 198.2 arcsec

Distance, Radial Speed, Proper Motion

Musica is distant 238.30 light years from the Sun

Distance (parsec) 73.10

Distance (light year) 238.30

Proper Motion RA -0.051 arcsec/y

Proper Motion Dec -0.036"/y

Alternative Designations

Proper Name Musica

Flamsteed designation 18 Delphini

Henry Draper Catalogue HD199665

SAO Catalogue SAO106712

Hipparcos Catalogue HIP103527

Durchmusterung Catalogue BD+10 4425

Visibility from Your Location

Today's Musica - 18 Delphini rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 79.1° RISE 22:41

Max altitude: 49.5° TRANSIT 5:39

Azimuth: 280.9° SET 12:33

Set Location

Other stars in Delphinus