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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:25 
Transit: 12:14 
Sunset: 17:03
wb_twilight   (Nautical Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Orion » 

HR1861

Below the horizon.  Rise: 14:23 | Tran: 20:13 | Set: 2:07
Alt: -34.89°   Az: 325.31°   Direction: North-West

HR1861 is a variable and double sub-giant star of spectral class B1 in the constellation of Orion.

HR1861 visual magnitude is 5.35. Because of its faintness, HR1861 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.

Image of HR1861 star
DSS2 image of HR1861. The red arrow shows the motion of HR1861 during the next 100000 years (-1.67 arcmin in Right Ascension and -15.00 arcmin in declination);

Celestial Coordinates

Apparent

05h 33m 57s
-01° 34’ 32”
10h 08m 39s
15h 42m 36s

J2000

05h 32m 41s
-01° 35’ 30”

Galactic Coordinates

205.14°
-18.2°

Finder Chart

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  Loading map...
Finder chart for HR1861.

Magnitude, Color, Spectral Class

5.35
Sub-giant

-4.13
B1IV
13348K

The red dot in the diagram below shows where HR1861 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1861. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR1861 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 HR1861 double sysyem:

5.35
9.85
4.5
2 arcsec

Distance, Radial Speed, Proper Motion

HR1861 is distant 2,566.93 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.

787.40
2,566.93
34 km/s
-0.001 arcsec/y
-0.009"/y

Alternative Designations

SAO132234
SAO132234

Visibility from Your Location

Today's HR1861 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 91.6°
Max altitude: 36.9°
Azimuth: 268.4°