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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat's Visible Now?
All Constellations » Orion » 


Altitude: 28.0°   Azimuth: 143.8°   Direction: South-East

HR1898 is a double sub-giant star in the constellation of Orion.

HR1898 visual magnitude is 6.38. Because of its reltive faintness, HR1898 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR1898:


HR1898 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 28.0°
Azimuth: 143.8°
Direction: South-East

Celestial coordinates and finder chart of HR1898

HR1898 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1898 are provided in the following table:

05h 35m 31s
-04° 21’ 52”

The simplified sky map below shows the position of HR1898 in the sky:

Finder chart HR1898 star
Simplified finder chart for HR1898.

Visibility of HR1898 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR1898 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.4°
Max altitude: 34.2°
Azimuth: 265.6°

Digitized Sky Survey image of HR1898

The image below is a photograph of HR1898 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR1898 is 0.002 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1898 star
DSS2 image of HR1898. The red arrow shows the motion of HR1898 during the next 10000 years (0.33 arcmin in Right Ascension and -3.50 arcmin in declination);

Distance of HR1898 from the Sun and relative movement

HR1898 is distant 1,263.57 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

387.60 pc
1,263.57 ly
30 km/s
0.002 arcsec/year
-0.021 arcsec/year

Spectral properties of HR1898

HR1898 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR1898 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1898. Attribution: Richard Powell / CC BY-SA

HR1898 star system properties

HR1898 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 HR1898 double sysyem:

4.2 arcsec

Alternative designations of HR1898