HR4180

Below the horizon. Never rises today

Alt: -22.24° Az: 203.08° Direction: South-South-West

HR4180 is a multiple supergiant star of spectral class G2 in the constellation of Vela.

HR4180 visual magnitude is 4.28. Because of its moderate brightness, HR4180 is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of HR4180. The red arrow shows the motion of HR4180 during the next 10000 years (-3.17 arcmin in Right Ascension and 0.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 40m 17s

Declination -55° 43’ 58”

Hour Angle 02h 40m 27s

Sideral Time 13h 20m 45s

J2000

Right Ascension 10h 39m 18s

Declination -55° 36’ 11”

Galactic Coordinates

Galactic Longitude 284.98°

Galactic Latitude 2.59°

Finder Chart

Simplified finder chart for HR4180.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.28

Class Supergiant

Absolute magnitude -2.93

Spectral Type G2I

Color Index (B-V) 1.04

Temperature 4649K

The red dot in the diagram below shows where HR4180 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4180. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4180 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4180 double sysyem:

Main star magnitude 4.28

Secondary star magnitude 6.48

Magnitude difference 2.2

Separation 51.8 arcsec

Distance, Radial Speed, Proper Motion

HR4180 is distant 900.55 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

Distance (parsec) 276.24

Distance (light year) 900.55

Radial Speed 20 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec 0.005"/y

Alternative Designations

Henry Draper Catalogue HD92449

SAO Catalogue SAO238309

Hipparcos Catalogue HIP52154

Durchmusterung Catalogue CP-54 3915

FK5 Catalogue 402

Visibility from Your Location

HR4180 is currently not visible from Greenwich, UK

Set Location

Other stars in Vela