HR7578

Below the horizon. Rise: 0:40 | Tran: 4:28 | Set: 8:11

Alt: -57.29° Az: 318.90° Direction: North-West

HR7578 is a variable and double main-sequence star of spectral class K2 in the constellation of Sagittarius.

HR7578 visual magnitude is 6.18. Because of its faintness, HR7578 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 HR7578. The red arrow shows the motion of HR7578 during the next 1000 years (-2.18 arcmin in Right Ascension and -6.90 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 55m 49s

Declination -23° 52’ 22”

Hour Angle 10h 28m 34s

Sidereal Time 06h 24m 23s

J2000

Right Ascension 19h 54m 17s

Declination -23° 56’ 27”

Galactic Coordinates

Galactic Longitude 17.18°

Galactic Latitude -23.91°

Finder Chart

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Finder chart for HR7578.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.18

Class Main-sequence

Absolute magnitude 5.42

Spectral Type K2V

Color Index (B-V) 1.02

Temperature 4695K

The red dot in the diagram below shows where HR7578 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7578. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7578 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 HR7578 double sysyem:

Main star magnitude 6.18

Secondary star magnitude 10.18

Magnitude difference 4

Separation 31.5 arcsec

Distance, Radial Speed, Proper Motion

HR7578 is distant 46.35 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 14.22

Distance (light year) 46.35

Radial Speed -7 km/s

Proper Motion RA -0.131 arcsec/y

Proper Motion Dec -0.414"/y

Alternative Designations

Henry Draper Catalogue HD188088

SAO Catalogue SAO188692

Hipparcos Catalogue HIP97944

Durchmusterung Catalogue CD-2415668

Gliese Catalogue Gl 770

General Catalogue of Variable Stars Var?

Aitken Double Star Catalogue ADS13072

Visibility from Your Location

Today's HR7578 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.9° RISE 0:40

Max altitude: 14.6° TRANSIT 4:28

Azimuth: 246.1° SET 8:11

Set Location

Other stars in Sagittarius