λ Arietis (lambda Arietis)

Above the horizon. Rise: 2:46 | Tran: 10:58 | Set: 19:09

Alt: 21.89° Az: 281.03° Direction: West

λ Arietis is a variable and multiple hypergiant star of spectral class F0 in the constellation of Aries.

λ Arietis visual magnitude is 4.79. Because of its moderate brightness, λ Arietis 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.

Image of λ Arietis (lambda Arietis) star

DSS2 image of λ Arietis. The red arrow shows the motion of λ Arietis during the next 10000 years (-15.00 arcmin in Right Ascension and -2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 01h 59m 21s

Declination +23° 43’ 08”

Hour Angle 05h 36m 35s

Sidereal Time 07h 35m 56s

J2000

Right Ascension 01h 57m 55s

Declination +23° 35’ 45”

Galactic Coordinates

Galactic Longitude 142.04°

Galactic Latitude -36.8°

Finder Chart

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Finder chart for λ Arietis (lambda Arietis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.79

Class Hypergiant

Absolute magnitude 1.73

Spectral Type F0V

Color Index (B-V) 0.28

Temperature 7591K

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

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

Star System Properties

λ Arietis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the λ Arietis double sysyem:

Main star magnitude 4.79

Secondary star magnitude 7.29

Magnitude difference 2.5

Separation 37.4 arcsec

Distance, Radial Speed, Proper Motion

λ Arietis is distant 133.12 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 40.83

Distance (light year) 133.12

Radial Speed -1 km/s

Proper Motion RA -0.09 arcsec/y

Proper Motion Dec -0.013"/y

Alternative Designations

Bayer designation λ Arietis
(lambda Arietis)

Flamsteed designation 9 Arietis

Henry Draper Catalogue HD11973

SAO Catalogue SAO75051

Hipparcos Catalogue HIP9153

Durchmusterung Catalogue BD+22 288

General Catalogue of Variable Stars 680

Aitken Double Star Catalogue ADS1563

Visibility from Your Location

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

Azimuth: 66.3° RISE 2:46

Max altitude: 62.2° TRANSIT 10:58

Azimuth: 293.7° SET 19:09

Set Location

Other stars in Aries