15 Sagittae

Below the horizon. Rise: 19:30 | Tran: 3:03 | Set: 10:31

Alt: -21.24° Az: 5.13° Direction: South-West

15 Sagittae is a variable and multiple main-sequence star of spectral class G1 in the constellation of Sagitta.

15 Sagittae visual magnitude is 5.8. Because of its faintness, 15 Sagittae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 15 Sagittae. The red arrow shows the motion of 15 Sagittae during the next 1000 years (-6.58 arcmin in Right Ascension and -6.90 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 05m 15s

Declination +17° 08’ 36”

Hour Angle 12h 20m 00s

Sidereal Time 08h 25m 16s

J2000

Right Ascension 20h 04m 06s

Declination +17° 04’ 12”

Galactic Coordinates

Galactic Longitude 56.56°

Galactic Latitude -7.55°

Finder Chart

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Finder chart for 15 Sagittae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.8

Class Main-sequence

Absolute magnitude 4.56

Spectral Type G1V

Color Index (B-V) 0.61

Temperature 5929K

The red dot in the diagram below shows where 15 Sagittae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 15 Sagittae. Attribution: Richard Powell / CC BY-SA

Star System Properties

15 Sagittae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 15 Sagittae double sysyem:

Main star magnitude 5.8

Secondary star magnitude 6.7

Magnitude difference 0.9

Separation 203.7 arcsec

Distance, Radial Speed, Proper Motion

15 Sagittae is distant 57.60 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 17.67

Distance (light year) 57.60

Radial Speed 4 km/s

Proper Motion RA -0.395 arcsec/y

Proper Motion Dec -0.414"/y

Alternative Designations

Flamsteed designation 15 Sagittae

Henry Draper Catalogue HD190406

SAO Catalogue SAO105635

Hipparcos Catalogue HIP98819

Durchmusterung Catalogue BD+16 4121

Gliese Catalogue Gl 779

General Catalogue of Variable Stars 12757

Visibility from Your Location

Today's 15 Sagittae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.9° RISE 19:30

Max altitude: 55.7° TRANSIT 3:03

Azimuth: 287.1° SET 10:31

Set Location

Other stars in Sagitta