HR6578

Above the horizon. Rise: 13:09 | Tran: 18:56 | Set: 0:44

Alt: 34.50° Az: 200.43° Direction: South-South-West

HR6578 is a variable supergiant star of spectral class K2 in the constellation of Ophiuchus.

HR6578 visual magnitude is 6.19. Because of its faintness, HR6578 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 HR6578. The red arrow shows the motion of HR6578 during the next 10000 years (-3.83 arcmin in Right Ascension and -3.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 41m 29s

Declination -02° 09’ 50”

Hour Angle 01h 06m 55s

Sideral Time 18h 48m 24s

J2000

Right Ascension 17h 40m 11s

Declination -02° 09’ 08”

Galactic Coordinates

Galactic Longitude 22.64°

Galactic Latitude 14.77°

Finder Chart

Simplified finder chart for HR6578.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.19

Class Supergiant

Absolute magnitude 0.08

Spectral Type K2I

Color Index (B-V) 1.67

Temperature 3555K

The red dot in the diagram below shows where HR6578 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6578. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR6578 is distant 544.24 light years from the Sun and it is moving towards the Sun at the speed of 49 kilometers per second.

Distance (parsec) 166.94

Distance (light year) 544.24

Radial Speed -49 km/s

Proper Motion RA -0.023 arcsec/y

Proper Motion Dec -0.018"/y

Alternative Designations

Henry Draper Catalogue HD160471

SAO Catalogue SAO141798

Hipparcos Catalogue HIP86476

Durchmusterung Catalogue BD-02 4425

General Catalogue of Variable Stars 9461

Visibility from Your Location

Today's HR6578 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 92.2° RISE 13:09

Max altitude: 36.4° TRANSIT 18:56

Azimuth: 267.8° SET 0:44

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Ophiuchus