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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:08 
Transit: 12:13 
Sunset: 17:20
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All Constellations » Orion » 

HR1900

Above the horizon.  Rise: 13:58 | Tran: 19:40 | Set: 1:26
Alt: 17.66°   Az: 119.67°   Direction: East-South-East

HR1900 is a variable and double sub-giant star of spectral class B3 in the constellation of Orion.

HR1900 visual magnitude is 6.4. Because of its faintness, HR1900 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 HR1900 star
DSS2 image of HR1900. The red arrow shows the motion of HR1900 during the next 100000 years (-13.33 arcmin in Right Ascension and 0.00 arcmin in declination);

Celestial Coordinates

Apparent

05h 36m 51s
-03° 14’ 17”
20h 15m 54s
01h 52m 45s

J2000

05h 35m 35s
-03° 15’ 10”

Galactic Coordinates

207.04°
-18.33°

Finder Chart

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  Loading map...
Finder chart for HR1900.

Magnitude, Color, Spectral Class

6.4
Sub-giant

-3.12
B3IV
11920K

The red dot in the diagram below shows where HR1900 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1900. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR1900 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 HR1900 double sysyem:

6.4
12.6
6.2
1.1 arcsec

Distance, Radial Speed, Proper Motion

HR1900 is distant 2,608.00 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

800.00
2,608.00
24 km/s
-0.008 arcsec/y

Alternative Designations

SAO132332
SAO132332

Visibility from Your Location

Today's HR1900 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.2°
Max altitude: 35.3°
Azimuth: 266.8°