Your guide to the Solar System and the night sky
🌎  Greenwich, United Kingdom [change]

15 Sagittae

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

15 Sagittae visual magnitude is 5.8. Because of its reltive faintness, 15 Sagittae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 15 Sagittae:

5.8
Main-sequence
15 Sagittae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 2°.

Celestial coordinates and finder chart of 15 Sagittae

15 Sagittae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 15 Sagittae are provided in the following table:

20h 04m 06s
+17° 04’ 12”
56.56°
-7.55°
Sagitta

The simplified sky map below shows the position of 15 Sagittae in the sky:

Finder chart 15 Sagittae star
Simplified finder chart for 15 Sagittae.

Visibility of 15 Sagittae from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 72.9°
Max altitude: 55.6°
Azimuth: 287.1°
15 Sagittae is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 15 Sagittae

The image below is a photograph of 15 Sagittae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 15 Sagittae is -0.395 arcsec per year in Right Ascension and -0.414 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 15 Sagittae star
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);

Distance of 15 Sagittae from the Sun and relative movement

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.

17.67 pc
57.60 ly
4 km/s
-0.395 arcsec/year
-0.414 arcsec/year

Spectral properties of 15 Sagittae

15 Sagittae belongs to spectral class G1 and has a luminosity class of V corresponding to a main-sequence star.

4.56
G1V
5929K

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

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

15 Sagittae 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:

5.8
6.7
0.9
203.7 arcsec

Alternative designations of 15 Sagittae

15 Sagittae
SAO105635
SAO105635