Mesarthim - γ2 Arietis (gamma2 Arietis)

Above the horizon. Rise: 2:14 | Tran: 9:26 | Set: 16:38

Alt: 34.00° Az: 266.02° Direction: West

Mesarthim, also designated as γ2 Arietis (gamma2 Arietis), is a variable and multiple star of spectral class A1 in the constellation of Aries.

Mesarthim visual magnitude is 4.75. Because of its moderate brightness, Mesarthim 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 Mesarthim - γ2 Arietis (gamma2 Arietis) star

DSS2 image of Mesarthim. The red arrow shows the motion of Mesarthim during the next 1000 years (1.32 arcmin in Right Ascension and -1.73 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 01h 54m 55s

Declination +19° 25’ 05”

Hour Angle 04h 05m 04s

Sidereal Time 06h 00m 00s

J2000

Right Ascension 01h 53m 31s

Declination +19° 17’ 36”

Galactic Coordinates

Galactic Longitude 142.55°

Galactic Latitude -41.2°

Finder Chart

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Finder chart for Mesarthim - γ2 Arietis (gamma2 Arietis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.75

Class

Mesarthim is also a Si chemically peculiar star.

Absolute magnitude 0.77

Spectral Type A1

Color Index (B-V) -0.04

Temperature 10653K

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

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

Star System Properties

Mesarthim 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 Mesarthim double sysyem:

Main star magnitude 4.75

Secondary star magnitude 4.85

Magnitude difference 0.1

Separation 7.8 arcsec

Distance, Radial Speed, Proper Motion

Mesarthim is distant 204.26 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 62.66

Distance (light year) 204.26

Radial Speed -1 km/s

Proper Motion RA 0.079 arcsec/y

Proper Motion Dec -0.104"/y

Alternative Designations

Proper Name Mesarthim

Bayer designation γ2 Arietis
(gamma2 Arietis)

Flamsteed designation 5 Arietis

Henry Draper Catalogue HD11502

SAO Catalogue SAO92681

Hipparcos Catalogue HIP8832

Durchmusterung Catalogue BD+18 243

General Catalogue of Variable Stars Gam Ari

Aitken Double Star Catalogue ADS1507

Visibility from Your Location

Today's Mesarthim - γ2 Arietis (gamma2 Arietis) rise, transit and set times from Cuevas de San Clemente, Spagna are the following (all times relative to the local timezone Europe/Madrid):

Azimuth: 70.6° RISE 2:14

Max altitude: 67.3° TRANSIT 9:26

Azimuth: 289.4° SET 16:38

Name:	Cuevas de San Clemente, Spagna
Latitude:	42° 7' 48.4" N
Longitude:	3° 34' 6.2" W
Timezone:	Europe/Madrid

Set Location

Other stars in Aries