Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]


HR2099 is a double giant star in the constellation of Orion.

HR2099 visual magnitude is 5.7. Because of its reltive faintness, HR2099 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 HR2099:

HR2099 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 49°.

Celestial coordinates and finder chart of HR2099

HR2099 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 HR2099 are provided in the following table:

05h 58m 53s
+12° 48’ 30”

The simplified sky map below shows the position of HR2099 in the sky:

Finder chart HR2099 star
Simplified finder chart for HR2099.

Visibility of HR2099 from your location

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

Today's HR2099 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.2°
Max altitude: 51.3°
Azimuth: 282.8°
HR2099 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2099

The image below is a photograph of HR2099 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 HR2099 is -0.014 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 HR2099 star
DSS2 image of HR2099. The red arrow shows the motion of HR2099 during the next 10000 years (-2.33 arcmin in Right Ascension and 3.50 arcmin in declination);

Distance of HR2099 from the Sun and relative movement

HR2099 is distant 838.05 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

257.07 pc
838.05 ly
12 km/s
-0.014 arcsec/year
0.021 arcsec/year

Spectral properties of HR2099

HR2099 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR2099 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2099. Attribution: Richard Powell / CC BY-SA

HR2099 star system properties

HR2099 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 HR2099 double sysyem:

0.4 arcsec

Alternative designations of HR2099