4 Sagittarii

Above the horizon. Rise: 15:56 | Tran: 19:40 | Set: 23:24

Alt: 14.68° Az: 177.83° Direction: South

4 Sagittarii is a main-sequence star of spectral class B9 in the constellation of Sagittarius.

4 Sagittarii visual magnitude is 4.76. Because of its moderate brightness, 4 Sagittarii 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.

DSS2 image of 4 Sagittarii. The red arrow shows the motion of 4 Sagittarii during the next 10000 years (0.17 arcmin in Right Ascension and -7.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 01m 18s

Declination -23° 48’ 56”

Hour Angle 23h 50m 50s

Sideral Time 17h 52m 08s

J2000

Right Ascension 17h 59m 47s

Declination -23° 48’ 57”

Galactic Coordinates

Galactic Longitude 6.02°

Galactic Latitude -0.13°

Finder Chart

Simplified finder chart for 4 Sagittarii.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.76

Class Main-sequence

Absolute magnitude -0.87

Spectral Type B9V

Color Index (B-V) -0.04

Temperature 10653K

The red dot in the diagram below shows where 4 Sagittarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 4 Sagittarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

4 Sagittarii is distant 436.41 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 133.87

Distance (light year) 436.41

Radial Speed -18 km/s

Proper Motion RA 0.001 arcsec/y

Proper Motion Dec -0.047"/y

Alternative Designations

Flamsteed designation 4 Sagittarii

Henry Draper Catalogue HD163955

SAO Catalogue SAO186061

Hipparcos Catalogue HIP88116

Durchmusterung Catalogue CD-2313731

FK5 Catalogue 3430

Visibility from Your Location

Today's 4 Sagittarii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.8° RISE 15:56

Max altitude: 14.7° TRANSIT 19:40

Azimuth: 246.2° SET 23:24

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Sagittarius