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🌎  Greenwich, United Kingdom [change]


HR2154 is a double sub-giant star in the constellation of Monoceros.

HR2154 visual magnitude is 5.38. Because of its reltive faintness, HR2154 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 HR2154:

HR2154 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 33°.

Celestial coordinates and finder chart of HR2154

HR2154 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 HR2154 are provided in the following table:

06h 06m 38s
-04° 11’ 38”

The simplified sky map below shows the position of HR2154 in the sky:

Finder chart HR2154 star
Simplified finder chart for HR2154.

Visibility of HR2154 from your location

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

Today's HR2154 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.2°
Max altitude: 34.3°
Azimuth: 265.8°
HR2154 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2154

The image below is a photograph of HR2154 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 HR2154 is -0.007 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2154 star
DSS2 image of HR2154. The red arrow shows the motion of HR2154 during the next 100000 years (-11.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR2154 from the Sun and relative movement

HR2154 is distant 2,130.72 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

653.59 pc
2,130.72 ly
20 km/s
-0.007 arcsec/year
-0.004 arcsec/year

Spectral properties of HR2154

HR2154 belongs to spectral class B5 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR2154 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2154. Attribution: Richard Powell / CC BY-SA

HR2154 star system properties

HR2154 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 HR2154 double sysyem:

28.5 arcsec

Alternative designations of HR2154