HR57

Below the horizon. Rise: 11:58 | Tran: 14:37 | Set: 17:17

Alt: -30.74° Az: 102.92° Direction: East-South-East

HR57 is a double giant star of spectral class K5 in the constellation of Sculptor.

HR57 visual magnitude is 5.67. Because of its faintness, HR57 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 HR57. The red arrow shows the motion of HR57 during the next 1000 years (2.03 arcmin in Right Ascension and -0.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 17m 24s

Declination -31° 18’ 24”

Hour Angle 17h 14m 38s

Sidereal Time 17h 32m 03s

J2000

Right Ascension 00h 16m 08s

Declination -31° 26’ 47”

Galactic Coordinates

Galactic Longitude 1.53°

Galactic Latitude -81.18°

Finder Chart

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Finder chart for HR57.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.67

Class Giant

Absolute magnitude 0.09

Spectral Type K5III

Color Index (B-V) 1.35

Temperature 4034K

The red dot in the diagram below shows where HR57 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR57. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR57 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR57 double sysyem:

Main star magnitude 5.67

Secondary star magnitude 15.57

Magnitude difference 9.9

Separation 64 arcsec

Distance, Radial Speed, Proper Motion

HR57 is distant 426.70 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

Distance (parsec) 130.89

Distance (light year) 426.70

Radial Speed 26 km/s

Proper Motion RA 0.122 arcsec/y

Proper Motion Dec -0.03"/y

Alternative Designations

Henry Draper Catalogue HD1187

SAO Catalogue SAO192430

Hipparcos Catalogue HIP1288

Durchmusterung Catalogue CD-32 72

FK5 Catalogue 2014

Visibility from Your Location

Today's HR57 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 121.3° RISE 11:58

Max altitude: 7.2° TRANSIT 14:37

Azimuth: 238.7° SET 17:17

Set Location

Other stars in Sculptor