Sulafat - γ Lyrae (gamma Lyrae)

Above the horizon. Rise: 16:10 | Tran: 1:46 | Set: 11:18

Alt: 3.56° Az: 322.33° Direction: South-South-West

Sulafat, also designated as γ Lyrae (gamma Lyrae), is a variable and multiple giant star of spectral class B9 in the constellation of Lyra.

Sulafat visual magnitude is 3.24. Because of its moderate brightness, Sulafat 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 Sulafat - γ Lyrae (gamma Lyrae) star

DSS2 image of Sulafat. The red arrow shows the motion of Sulafat during the next 100000 years (-3.33 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 59m 53s

Declination +32° 43’ 32”

Hour Angle 08h 54m 07s

Sidereal Time 03h 54m 01s

J2000

Right Ascension 18h 58m 56s

Declination +32° 41’ 21”

Galactic Coordinates

Galactic Longitude 63.32°

Galactic Latitude 12.81°

Finder Chart

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Finder chart for Sulafat - γ Lyrae (gamma Lyrae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.24

Class Giant

Absolute magnitude -3.21

Spectral Type B9III

Color Index (B-V) -0.05

Temperature 10795K

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

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

Star System Properties

Sulafat 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 Sulafat double sysyem:

Main star magnitude 3.24

Secondary star magnitude 11.54

Magnitude difference 8.3

Separation 176.9 arcsec

Distance, Radial Speed, Proper Motion

Sulafat is distant 634.24 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

Distance (parsec) 194.55

Distance (light year) 634.24

Radial Speed -21 km/s

Proper Motion RA -0.002 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Proper Name Sulafat

Bayer designation γ Lyrae
(gamma Lyrae)

Flamsteed designation 14 Lyrae

Henry Draper Catalogue HD176437

SAO Catalogue SAO67663

Hipparcos Catalogue HIP93194

Durchmusterung Catalogue BD+32 3286

FK5 Catalogue 713

General Catalogue of Variable Stars 11624

Aitken Double Star Catalogue ADS11908

Visibility from Your Location

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

Azimuth: 57.3° RISE 16:10

Max altitude: 71.2° TRANSIT 1:46

Azimuth: 302.7° SET 11:18

Set Location

Other stars in Lyra