66 Arietis

Above the horizon. Rise: 4:27 | Tran: 12:32 | Set: 20:37

Alt: 50.18° Az: 122.10° Direction: East-South-East

66 Arietis is a multiple hypergiant star of spectral class K0 in the constellation of Aries.

66 Arietis visual magnitude is 6.03. Because of its faintness, 66 Arietis 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 66 Arietis. The red arrow shows the motion of 66 Arietis during the next 1000 years (-0.02 arcmin in Right Ascension and -1.73 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 29m 55s

Declination +22° 53’ 26”

Hour Angle 21h 35m 40s

Sidereal Time 01h 05m 36s

J2000

Right Ascension 03h 28m 26s

Declination +22° 48’ 15”

Galactic Coordinates

Galactic Longitude 163.95°

Galactic Latitude -27.29°

Finder Chart

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Finder chart for 66 Arietis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.03

Class Hypergiant

Absolute magnitude 1.83

Spectral Type K0IV

Color Index (B-V) 0.95

Temperature 4866K

The red dot in the diagram below shows where 66 Arietis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 66 Arietis. Attribution: Richard Powell / CC BY-SA

Star System Properties

66 Arietis 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 66 Arietis double sysyem:

Main star magnitude 6.03

Secondary star magnitude 7.43

Magnitude difference 1.4

Separation 0 arcsec

Distance, Radial Speed, Proper Motion

66 Arietis is distant 225.76 light years from the Sun and it is moving far from the Sun at the speed of 49 kilometers per second.

Distance (parsec) 69.25

Distance (light year) 225.76

Radial Speed 49 km/s

Proper Motion RA -0.001 arcsec/y

Proper Motion Dec -0.104"/y

Alternative Designations

Flamsteed designation 66 Arietis

Henry Draper Catalogue HD21467

SAO Catalogue SAO75945

Hipparcos Catalogue HIP16181

Durchmusterung Catalogue BD+22 495

Aitken Double Star Catalogue ADS2552

Visibility from Your Location

Today's 66 Arietis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 67.1° RISE 4:27

Max altitude: 61.4° TRANSIT 12:32

Azimuth: 292.9° SET 20:37

Set Location

Other stars in Aries