Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:44  
clear_day Transit: 12:51  
SunsetSet: 18:57 south
sleep NighttimeWhat's Visible Now
All Constellations » Eridanus » 


Altitude: -8.2°   Azimuth: 95.5°   Direction: East

HR1091 is a main-sequence star in the constellation of Eridanus.

HR1091 visual magnitude is 6.25. Because of its reltive faintness, HR1091 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 HR1091:


HR1091 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.2°
Azimuth: 95.5°
Direction: East

Celestial coordinates and finder chart of HR1091

HR1091 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 HR1091 are provided in the following table:

03h 34m 37s
-09° 52’ 06”

The simplified sky map below shows the position of HR1091 in the sky:

Finder chart HR1091 star
Simplified finder chart for HR1091.

Visibility of HR1091 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 HR1091 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: 99.9°
Max altitude: 28.7°
Azimuth: 260.1°

Digitized Sky Survey image of HR1091

The image below is a photograph of HR1091 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 HR1091 is 0.018 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1091 star
DSS2 image of HR1091. The red arrow shows the motion of HR1091 during the next 10000 years (3.00 arcmin in Right Ascension and -0.67 arcmin in declination);

Distance of HR1091 from the Sun and relative movement

HR1091 is distant 518.28 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

158.98 pc
518.28 ly
11 km/s
0.018 arcsec/year
-0.004 arcsec/year

Spectral properties of HR1091

HR1091 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1091 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1091. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1091