HR1863

Below the horizon. Rise: 23:04 | Tran: 4:57 | Set: 10:47

Alt: -39.96° Az: 7.89° Direction: North

HR1863 is a variable and multiple main-sequence star of spectral class B4 in the constellation of Orion.

HR1863 visual magnitude is 6.46. Because of its faintness, HR1863 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 HR1863. The red arrow shows the motion of HR1863 during the next 10000 years (-4.17 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 34m 22s

Declination -01° 42’ 09”

Hour Angle 12h 24m 10s

Sidereal Time 17h 58m 33s

J2000

Right Ascension 05h 33m 07s

Declination -01° 43’ 05”

Galactic Coordinates

Galactic Longitude 205.31°

Galactic Latitude -18.17°

Finder Chart

Simplified finder chart for HR1863.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.46

Class Main-sequence

Absolute magnitude -3.18

Spectral Type B4V

Color Index (B-V) -0.09

Temperature 11407K

The red dot in the diagram below shows where HR1863 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1863. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR1863 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR1863 double sysyem:

Main star magnitude 6.46

Secondary star magnitude 8.26

Magnitude difference 1.8

Separation 1.5 arcsec

Distance, Radial Speed, Proper Motion

HR1863 is distant 2,762.71 light years from the Sun and it is moving far from the Sun at the speed of 37 kilometers per second.

Distance (parsec) 847.46

Distance (light year) 2,762.71

Radial Speed 37 km/s

Proper Motion RA -0.025 arcsec/y

Proper Motion Dec -0.04"/y

Alternative Designations

Henry Draper Catalogue HD36646

SAO Catalogue SAO132247

Hipparcos Catalogue HIP26020

Durchmusterung Catalogue BD-01 939

General Catalogue of Variable Stars 2131

Aitken Double Star Catalogue ADS4150

Visibility from Your Location

Today's HR1863 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 91.7° RISE 23:04

Max altitude: 36.8° TRANSIT 4:57

Azimuth: 268.3° SET 10:47

Set Location

Other stars in Orion