HR997

Above the horizon. Rise: 22:35 | Tran: 2:59 | Set: 7:18

Alt: 3.46° Az: 125.84° Direction: South-East

HR997 is a double hypergiant star of spectral class F0 in the constellation of Eridanus.

HR997 visual magnitude is 5.71. Because of its faintness, HR997 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 HR997. The red arrow shows the motion of HR997 during the next 1000 years (2.27 arcmin in Right Ascension and -0.88 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 19m 48s

Declination -18° 28’ 14”

Hour Angle 20h 05m 46s

Sideral Time 23h 25m 35s

J2000

Right Ascension 03h 18m 41s

Declination -18° 33’ 34”

Galactic Coordinates

Galactic Longitude 206.62°

Galactic Latitude -55.15°

Finder Chart

Simplified finder chart for HR997.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.71

Class Hypergiant

Absolute magnitude 2.89

Spectral Type F0IV

Color Index (B-V) 0.37

Temperature 7044K

The red dot in the diagram below shows where HR997 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR997. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR997 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 HR997 double sysyem:

Main star magnitude 5.71

Secondary star magnitude 8.01

Magnitude difference 2.3

Separation 7.2 arcsec

Distance, Radial Speed, Proper Motion

HR997 is distant 119.28 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 36.59

Distance (light year) 119.28

Radial Speed 18 km/s

Proper Motion RA 0.136 arcsec/y

Proper Motion Dec -0.053"/y

Alternative Designations

Henry Draper Catalogue HD20631

SAO Catalogue SAO148897

Hipparcos Catalogue HIP15411

Durchmusterung Catalogue BD-19 651

Aitken Double Star Catalogue ADS2465

Visibility from Your Location

Today's HR997 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.5° RISE 22:35

Max altitude: 20.0° TRANSIT 2:59

Azimuth: 251.5° SET 7:18

Set Location

Other stars in Eridanus