Sheliak - β Lyrae (beta Lyrae)

Below the horizon. Rise: 8:35 | Tran: 18:16 | Set: 4:00

Alt: -5.12° Az: 358.86° Direction: North

Sheliak, also designated as β Lyrae (beta Lyrae), is a variable and multiple bright giant star of spectral class B8 in the constellation of Lyra.

Sheliak visual magnitude is 3.45. Because of its moderate brightness, Sheliak 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 Sheliak - β Lyrae (beta Lyrae) star

DSS2 image of Sheliak. The red arrow shows the motion of Sheliak during the next 100000 years (5.00 arcmin in Right Ascension and -5.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 50m 59s

Declination +33° 23’ 34”

Hour Angle 11h 54m 32s

Sidereal Time 06h 45m 32s

J2000

Right Ascension 18h 50m 04s

Declination +33° 21’ 46”

Galactic Coordinates

Galactic Longitude 63.19°

Galactic Latitude 14.78°

Finder Chart

Simplified finder chart for Sheliak - β Lyrae (beta Lyrae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.45

Class Bright giant

Absolute magnitude -3.71

Spectral Type B8II

Color Index (B-V) 0

Temperature 10125K

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

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

Star System Properties

Sheliak 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 Sheliak double sysyem:

Main star magnitude 3.45

Secondary star magnitude 8.65

Magnitude difference 5.2

Separation 45.7 arcsec

Distance, Radial Speed, Proper Motion

Sheliak is distant 881.08 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 270.27

Distance (light year) 881.08

Radial Speed -19 km/s

Proper Motion RA 0.003 arcsec/y

Proper Motion Dec -0.003"/y

Alternative Designations

Proper Name Sheliak

Bayer designation β Lyrae
(beta Lyrae)

Flamsteed designation 10 Lyrae

Henry Draper Catalogue HD174638

SAO Catalogue SAO67451

Hipparcos Catalogue HIP92420

Durchmusterung Catalogue BD+33 3223

FK5 Catalogue 705

General Catalogue of Variable Stars Bet Lyr

Aitken Double Star Catalogue ADS11745

Visibility from Your Location

Today's Sheliak - β Lyrae (beta Lyrae) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.6° RISE 8:35

Max altitude: 71.9° TRANSIT 18:16

Azimuth: 303.4° SET 4:00

Set Location

Other stars in Lyra