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🌎  Greenwich, United Kingdom [change]

HR4691

HR4691 is a double sub-giant star in the constellation of Corvus.

HR4691 visual magnitude is 5.97. Because of its reltive faintness, HR4691 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 HR4691:

5.97
Sub-giant
HR4691 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 2°.

Celestial coordinates and finder chart of HR4691

HR4691 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 HR4691 are provided in the following table:

12h 20m 10s
-22° 10’ 32”
293.46°
40.12°
Corvus

The simplified sky map below shows the position of HR4691 in the sky:

Finder chart HR4691 star
Simplified finder chart for HR4691.

Visibility of HR4691 from your location

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

Today's HR4691 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.2°
Max altitude: 16.3°
Azimuth: 247.8°
HR4691 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4691

The image below is a photograph of HR4691 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 HR4691 is -0.109 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4691 star
DSS2 image of HR4691. The red arrow shows the motion of HR4691 during the next 1000 years (-1.82 arcmin in Right Ascension and -0.42 arcmin in declination);

Distance of HR4691 from the Sun and relative movement

HR4691 is distant 473.84 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

145.35 pc
473.84 ly
-1 km/s
-0.109 arcsec/year
-0.025 arcsec/year

Spectral properties of HR4691

HR4691 belongs to spectral class G3 and has a luminosity class of IV corresponding to a sub-giant star.

0.16
G3IV
5221K

The red dot in the diagram below shows where HR4691 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4691. Attribution: Richard Powell / CC BY-SA

HR4691 star system properties

HR4691 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 HR4691 double sysyem:

5.97
7.77
1.8
0.3 arcsec

Alternative designations of HR4691

SAO180695
SAO180695