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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
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sleep NighttimeWhat's Visible Now?
All Constellations » Perseus » 


Altitude: 18.8°   Azimuth: 301.9°   Direction: West-North-West

HR1191 is a double main-sequence star in the constellation of Perseus.

HR1191 visual magnitude is 5.77. Because of its reltive faintness, HR1191 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR1191 is 0.002 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR1191 star
DSS2 image of HR1191. The red arrow shows the motion of HR1191 during the next 100000 years (3.33 arcmin in Right Ascension and -11.67 arcmin in declination);

Key facts about HR1191


HR1191 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.8°
Azimuth: 301.9°
Direction: West-North-West

Celestial coordinates and finder chart of HR1191

HR1191 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1191 are provided in the following table:

03h 51m 53s
+34° 21’ 33”

The simplified sky map below shows the position of HR1191 in the sky:

Finder chart HR1191 star
Simplified finder chart for HR1191.

Visibility of HR1191 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 HR1191 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: 55.6°
Max altitude: 72.9°
Azimuth: 304.4°

Distance of HR1191 from the Sun and relative movement

HR1191 is distant 1,034.92 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

317.46 pc
1,034.92 ly
18 km/s
0.002 arcsec/year
-0.007 arcsec/year

Spectral properties of HR1191

HR1191 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1191 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1191. Attribution: Richard Powell / CC BY-SA

HR1191 star system properties

HR1191 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 HR1191 double sysyem:

15.1 arcsec

Alternative designations of HR1191