9 Sagittarii

Altitude: -4.6° Azimuth: 124.3° Direction: South-East

9 Sagittarii is a main-sequence star in the constellation of Sagittarius.

9 Sagittarii visual magnitude is 5.97. Because of its reltive faintness, 9 Sagittarii 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 9 Sagittarii:

Color of 9 Sagittarii ⬤

Magnitude of 9 Sagittarii 5.97

Class Main-sequence

VISIBILITY RIGHT NOW

9 Sagittarii is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -4.6°
Azimuth: 124.3°
Direction: South-East

Celestial coordinates and finder chart of 9 Sagittarii

9 Sagittarii 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 9 Sagittarii are provided in the following table:

Right Ascension J2000 18h 03m 52s

Declination J2000 -24° 21’ 38”

Galactic Longitude 6.01°

Galactic Latitude -1.2°

Constellation Sagittarius

The simplified sky map below shows the position of 9 Sagittarii in the sky:

Simplified finder chart for 9 Sagittarii.

Visibility of 9 Sagittarii from your location

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

Today's 9 Sagittarii rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 114.4° RISE 9:15

Max altitude: 14.2° TRANSIT 12:55

Azimuth: 245.6° SET 16:35

Digitized Sky Survey image of 9 Sagittarii

The image below is a photograph of 9 Sagittarii 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 9 Sagittarii is 0.002 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 9 Sagittarii. The red arrow shows the motion of 9 Sagittarii during the next 100000 years (3.33 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of 9 Sagittarii from the Sun and relative movement

9 Sagittarii is distant 4,939.39 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

Distance (parsec) 1,515.15 pc

Distance (light year) 4,939.39 ly

Heliocentric radial velocity 9 km/s

Proper Motion RA 0.002 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of 9 Sagittarii

9 Sagittarii belongs to spectral class O4 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -4.93

Spectral Type O4V

Color Index (B-V) 0

Temperature of 9 Sagittarii 10125K

The red dot in the diagram below shows where 9 Sagittarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 9 Sagittarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 9 Sagittarii

Flamsteed designation 9 Sagittarii

Henry Draper Catalogue HD164794

SAO Catalogue SAO186204

Hipparcos Catalogue HIP88469

Durchmusterung Catalogue CD-2413814

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In Evidence

Other stars in Sagittarius