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🌎  Greenwich, United Kingdom [change]

HR5791

HR5791 is a hypergiant star in the constellation of Serpens.

HR5791 visual magnitude is 6.56. Because of its reltive faintness, HR5791 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 HR5791:

6.56
Hypergiant
HR5791 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 14°.

Celestial coordinates and finder chart of HR5791

HR5791 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 HR5791 are provided in the following table:

15h 35m 04s
+01° 40’ 08”
6.98°
43.28°
Serpens

The simplified sky map below shows the position of HR5791 in the sky:

Finder chart HR5791 star
Simplified finder chart for HR5791.

Visibility of HR5791 from your location

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

Today's HR5791 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 88.3°
Max altitude: 40.2°
Azimuth: 271.7°
HR5791 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR5791

The image below is a photograph of HR5791 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 HR5791 is -0.074 arcsec per year in Right Ascension and -0.035 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5791 star
DSS2 image of HR5791. The red arrow shows the motion of HR5791 during the next 10000 years (-12.33 arcmin in Right Ascension and -5.83 arcmin in declination);

Distance of HR5791 from the Sun and relative movement

HR5791 is distant 192.33 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

59.00 pc
192.33 ly
-20 km/s
-0.074 arcsec/year
-0.035 arcsec/year

Spectral properties of HR5791

HR5791 belongs to spectral class F0 and has a luminosity class of III corresponding to a hypergiant star.

2.71
F0III
7591K

The red dot in the diagram below shows where HR5791 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5791. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5791

SAO121071
SAO121071