55 Sagittarii

55 Sagittarii is a giant star in the constellation of Sagittarius.

55 Sagittarii visual magnitude is 5.06. Because of its reltive faintness, 55 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 55 Sagittarii:

Color of 55 Sagittarii ⬤

Magnitude of 55 Sagittarii 5.06

Class Giant

VISIBILITY RIGHT NOW 55 Sagittarii is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 55 Sagittarii

55 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 55 Sagittarii are provided in the following table:

Right Ascension J2000 19h 42m 31s

Declination J2000 -16° 07’ 26”

Galactic Longitude 23.82°

Galactic Latitude -18.4°

Constellation Sagittarius

The simplified sky map below shows the position of 55 Sagittarii in the sky:

Simplified finder chart for 55 Sagittarii.

Visibility of 55 Sagittarii from your location

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

Today's 55 Sagittarii rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.1° RISE 3:31

Max altitude: 22.4° TRANSIT 8:04

Azimuth: 253.9° SET 12:38

RIGHT NOW 55 Sagittarii is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 55 Sagittarii

The image below is a photograph of 55 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 55 Sagittarii is 0.068 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 55 Sagittarii. The red arrow shows the motion of 55 Sagittarii during the next 10000 years (11.33 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of 55 Sagittarii from the Sun and relative movement

55 Sagittarii is distant 174.61 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

Distance (parsec) 53.56 pc

Distance (light year) 174.61 ly

Heliocentric radial velocity -27 km/s

Proper Motion RA 0.068 arcsec/year

Proper Motion Dec -0.009 arcsec/year

Spectral properties of 55 Sagittarii

55 Sagittarii belongs to spectral class F1 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 1.42

Spectral Type F1III

Color Index (B-V) 0.33

Temperature of 55 Sagittarii 7276K

The red dot in the diagram below shows where 55 Sagittarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 55 Sagittarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 55 Sagittarii

Flamsteed designation 55 Sagittarii

Henry Draper Catalogue HD186005

SAO Catalogue SAO162915

Hipparcos Catalogue HIP96950

Durchmusterung Catalogue BD-16 5413

FK5 Catalogue 1514

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Other stars in Sagittarius