HR7128

HR7128 is a star in the constellation of Sagittarius.

HR7128 visual magnitude is 5.93. Because of its reltive faintness, HR7128 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 HR7128:

Color of HR7128 ⬤

Magnitude of HR7128 5.93

Class

VISIBILITY RIGHT NOW HR7128 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 15°.

Celestial coordinates and finder chart of HR7128

HR7128 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 HR7128 are provided in the following table:

Right Ascension J2000 18h 56m 00s

Declination J2000 -23° 10’ 24”

Galactic Longitude 12.53°

Galactic Latitude -11.29°

Constellation Sagittarius

The simplified sky map below shows the position of HR7128 in the sky:

Simplified finder chart for HR7128.

Visibility of HR7128 from your location

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

Today's HR7128 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.2° RISE 3:29

Max altitude: 15.3° TRANSIT 7:18

Azimuth: 246.8° SET 11:07

RIGHT NOW HR7128 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7128

The image below is a photograph of HR7128 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 HR7128 is -0.002 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7128. The red arrow shows the motion of HR7128 during the next 100000 years (-3.33 arcmin in Right Ascension and -15.00 arcmin in declination);

Distance of HR7128 from the Sun and relative movement

HR7128 is distant 890.71 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

Distance (parsec) 273.22 pc

Distance (light year) 890.71 ly

Heliocentric radial velocity -16 km/s

Proper Motion RA -0.002 arcsec/year

Proper Motion Dec -0.009 arcsec/year

Spectral properties of HR7128

HR7128 belongs to spectral class B8

Absolute magnitude -1.25

Spectral Type B8

Color Index (B-V) -0.02

Temperature of HR7128 10382K

The red dot in the diagram below shows where HR7128 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7128. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7128

Henry Draper Catalogue HD175360

SAO Catalogue SAO187468

Hipparcos Catalogue HIP92931

Durchmusterung Catalogue CD-2314844

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In Evidence

Other stars in Sagittarius