HR6909

HR6909 is a main-sequence star in the constellation of Sagittarius.

HR6909 visual magnitude is 6.31. Because of its reltive faintness, HR6909 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 HR6909:

Color of HR6909 ⬤

Magnitude of HR6909 6.31

Class Main-sequence

VISIBILITY RIGHT NOW HR6909 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6909

HR6909 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6909 are provided in the following table:

Right Ascension J2000 18h 27m 43s

Declination J2000 -26° 38’ 04”

Galactic Longitude 6.55°

Galactic Latitude -7.02°

Constellation Sagittarius

The simplified sky map below shows the position of HR6909 in the sky:

Simplified finder chart for HR6909.

Visibility of HR6909 from your location

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

Today's HR6909 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 116.6° RISE 3:31

Max altitude: 11.9° TRANSIT 6:54

Azimuth: 243.4° SET 10:16

RIGHT NOW HR6909 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6909

The image below is a photograph of HR6909 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 HR6909 is 0.003 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6909. The red arrow shows the motion of HR6909 during the next 10000 years (0.50 arcmin in Right Ascension and -4.17 arcmin in declination);

Distance of HR6909 from the Sun and relative movement

HR6909 is distant 251.74 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

Distance (parsec) 77.22 pc

Distance (light year) 251.74 ly

Heliocentric radial velocity -29 km/s

Proper Motion RA 0.003 arcsec/year

Proper Motion Dec -0.025 arcsec/year

Spectral properties of HR6909

HR6909 belongs to spectral class A8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 1.87

Spectral Type A8V

Color Index (B-V) 0.26

Temperature of HR6909 7726K

The red dot in the diagram below shows where HR6909 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6909. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6909

Henry Draper Catalogue HD169851

SAO Catalogue SAO186837

Hipparcos Catalogue HIP90478

Durchmusterung Catalogue CD-2613184

Aitken Double Star Catalogue ADS11354

How to support us

In Evidence

Other stars in Sagittarius