HR108

Below the horizon. Rise: 19:53 | Tran: 0:01 | Set: 4:14

Alt: -54.93° Az: 325.56° Direction: North-West

HR108 is a double hypergiant star of spectral class G0 in the constellation of Cetus.

HR108 visual magnitude is 6.43. Because of its faintness, HR108 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 HR108. The red arrow shows the motion of HR108 during the next 1000 years (-1.93 arcmin in Right Ascension and -1.90 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 29m 35s

Declination -20° 11’ 53”

Hour Angle 10h 38m 57s

Sideral Time 11h 08m 33s

J2000

Right Ascension 00h 28m 21s

Declination -20° 20’ 06”

Galactic Coordinates

Galactic Longitude 83.87°

Galactic Latitude -81.4°

Finder Chart

Simplified finder chart for HR108.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.43

Class Hypergiant

Absolute magnitude 3.89

Spectral Type G0V

Color Index (B-V) 0.59

Temperature 6007K

The red dot in the diagram below shows where HR108 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR108. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR108 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 HR108 double sysyem:

Main star magnitude 6.43

Secondary star magnitude 6.53

Magnitude difference 0.1

Separation 0.2 arcsec

Distance, Radial Speed, Proper Motion

HR108 is distant 105.13 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Distance (parsec) 32.25

Distance (light year) 105.13

Radial Speed 6 km/s

Proper Motion RA -0.116 arcsec/y

Proper Motion Dec -0.114"/y

Alternative Designations

Henry Draper Catalogue HD2475

SAO Catalogue SAO166296

Hipparcos Catalogue HIP2237

Durchmusterung Catalogue BD-21 57

FK5 Catalogue 2029

Visibility from Your Location

Today's HR108 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 110.2° RISE 19:53

Max altitude: 18.3° TRANSIT 0:01

Azimuth: 249.8° SET 4:14

Set Location

Other stars in Cetus