HR7239

Above the horizon. Rise: 5:20 | Tran: 9:53 | Set: 14:26

Alt: 22.32° Az: 181.46° Direction: South

HR7239 is a double sub-giant star of spectral class B8 in the constellation of Sagittarius.

HR7239 visual magnitude is 6.03. Because of its faintness, HR7239 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7239. The red arrow shows the motion of HR7239 during the next 10000 years (3.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 08m 18s

Declination -16° 11’ 17”

Hour Angle 00h 05m 38s

Sidereal Time 19h 13m 57s

J2000

Right Ascension 19h 06m 52s

Declination -16° 13’ 44”

Galactic Coordinates

Galactic Longitude 20.04°

Galactic Latitude -10.66°

Finder Chart

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Finder chart for HR7239.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.03

Class Sub-giant

Absolute magnitude -1.16

Spectral Type B8IV

Color Index (B-V) -0.04

Temperature 10653K

The red dot in the diagram below shows where HR7239 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7239. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7239 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR7239 double sysyem:

Main star magnitude 6.03

Secondary star magnitude 10.03

Magnitude difference 4

Separation 6.4 arcsec

Distance, Radial Speed, Proper Motion

HR7239 is distant 893.15 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

Distance (parsec) 273.97

Distance (light year) 893.15

Radial Speed -17 km/s

Proper Motion RA 0.021 arcsec/y

Proper Motion Dec 0.004"/y

Alternative Designations

Henry Draper Catalogue HD177817

SAO Catalogue SAO162201

Hipparcos Catalogue HIP93855

Durchmusterung Catalogue BD-16 5153

Aitken Double Star Catalogue ADS12039

Visibility from Your Location

Today's HR7239 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.2° RISE 5:20

Max altitude: 22.3° TRANSIT 9:53

Azimuth: 253.8° SET 14:26

Set Location

Other stars in Sagittarius