Sham - α Sagittae (alpha Sagittae)

Below the horizon. Rise: 12:07 | Tran: 19:41 | Set: 3:19

Alt: -7.41° Az: 311.73° Direction: North-West

Sham, also designated as α Sagittae (alpha Sagittae), is a multiple bright giant star of spectral class G1 in the constellation of Sagitta.

Sham visual magnitude is 4.37. Because of its moderate brightness, Sham 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 Sham - α Sagittae (alpha Sagittae) star

DSS2 image of Sham. The red arrow shows the motion of Sham during the next 10000 years (2.33 arcmin in Right Ascension and -3.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 41m 12s

Declination +18° 04’ 20”

Hour Angle 08h 35m 32s

Sideral Time 04h 16m 44s

J2000

Right Ascension 19h 40m 05s

Declination +18° 00’ 50”

Galactic Coordinates

Galactic Longitude 54.45°

Galactic Latitude -2.14°

Finder Chart

Simplified finder chart for Sham - α Sagittae (alpha Sagittae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.37

Class Bright giant

Absolute magnitude -1.44

Spectral Type G1II

Color Index (B-V) 0.78

Temperature 5342K

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

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

Star System Properties

Sham 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 Sham double sysyem:

Main star magnitude 4.37

Secondary star magnitude 11.17

Magnitude difference 6.8

Separation 90 arcsec

Distance, Radial Speed, Proper Motion

Sham is distant 473.15 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 145.14

Distance (light year) 473.15

Radial Speed 2 km/s

Proper Motion RA 0.014 arcsec/y

Proper Motion Dec -0.021"/y

Alternative Designations

Proper Name Sham

Bayer designation α Sagittae
(alpha Sagittae)

Flamsteed designation 5 Sagittae

Henry Draper Catalogue HD185758

SAO Catalogue SAO105120

Hipparcos Catalogue HIP96757

Durchmusterung Catalogue BD+17 4042

Aitken Double Star Catalogue ADS12766

Visibility from Your Location

Today's Sham - α Sagittae (alpha Sagittae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 71.9° RISE 12:07

Max altitude: 56.6° TRANSIT 19:41

Azimuth: 288.1° SET 3:19

Set Location

Other stars in Sagitta