HR1803

Below the horizon. Rise: 8:20 | Tran: 14:21 | Set: 20:22

Alt: -21.88° Az: 301.40° Direction: West-North-West

HR1803 is a variable main-sequence star of spectral class B2 in the constellation of Orion.

HR1803 visual magnitude is 6.16. Because of its faintness, HR1803 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 HR1803. The red arrow shows the motion of HR1803 during the next 10000 years (-0.83 arcmin in Right Ascension and 3.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 27m 05s

Declination +00° 32’ 29”

Hour Angle 08h 30m 27s

Sidereal Time 13h 57m 33s

J2000

Right Ascension 05h 25m 46s

Declination +00° 31’ 14”

Galactic Coordinates

Galactic Longitude 202.31°

Galactic Latitude -18.71°

Finder Chart

Loading map...

Finder chart for HR1803.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.16

Class Main-sequence

Absolute magnitude -2.27

Spectral Type B2V

Color Index (B-V) -0.18

Temperature 13121K

The red dot in the diagram below shows where HR1803 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1803. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1803 is distant 1,582.52 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

Distance (parsec) 485.44

Distance (light year) 1,582.52

Radial Speed -24 km/s

Proper Motion RA -0.005 arcsec/y

Proper Motion Dec 0.019"/y

Alternative Designations

Henry Draper Catalogue HD35588

SAO Catalogue SAO112752

Hipparcos Catalogue HIP25378

Durchmusterung Catalogue BD+00 1056

General Catalogue of Variable Stars 1975

Visibility from Your Location

Today's HR1803 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 89.5° RISE 8:20

Max altitude: 39.1° TRANSIT 14:21

Azimuth: 270.5° SET 20:22

Set Location

Other stars in Orion