Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

HR7146

HR7146 is a multiple hypergiant star in the constellation of Lyra.

HR7146 visual magnitude is 5.44. Because of its reltive faintness, HR7146 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 HR7146:

5.44
Hypergiant
HR7146 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 70°.

Celestial coordinates and finder chart of HR7146

HR7146 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 HR7146 are provided in the following table:

18h 54m 52s
+41° 36’ 10”
71.49°
17.03°
Lyra

The simplified sky map below shows the position of HR7146 in the sky:

Finder chart HR7146 star
Simplified finder chart for HR7146.

Visibility of HR7146 from your location

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

HR7146 is circumpolar and transits at 21:21 UTC (altitude: 80.1°)

Digitized Sky Survey image of HR7146

The image below is a photograph of HR7146 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 HR7146 is 0.002 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7146 star
DSS2 image of HR7146. The red arrow shows the motion of HR7146 during the next 100000 years (3.33 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR7146 from the Sun and relative movement

HR7146 is distant 267.43 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

82.03 pc
267.43 ly
-9 km/s
0.002 arcsec/year
-0.002 arcsec/year

Spectral properties of HR7146

HR7146 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

0.87
K0III
4672K

The red dot in the diagram below shows where HR7146 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR7146. Attribution: Richard Powell / CC BY-SA

HR7146 star system properties

HR7146 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 HR7146 double sysyem:

5.44
12.34
6.9
23.6 arcsec

Alternative designations of HR7146

SAO47909
SAO47909