Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

HR46

HR46 is a variable and double giant star in the constellation of Cetus.

HR46 visual magnitude is 5.12. Because of its reltive faintness, HR46 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 HR46:

5.12
Giant
HR46 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR46

HR46 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 HR46 are provided in the following table:

00h 14m 27s
-07° 46’ 50”
96.87°
-68.76°
Cetus

The simplified sky map below shows the position of HR46 in the sky:

Finder chart HR46 star
Simplified finder chart for HR46.

Visibility of HR46 from your location

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

Today's HR46 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.8°
Max altitude: 30.7°
Azimuth: 262.2°
HR46 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR46

The image below is a photograph of HR46 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 HR46 is 0.059 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 HR46 star
DSS2 image of HR46. The red arrow shows the motion of HR46 during the next 10000 years (9.83 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR46 from the Sun and relative movement

HR46 is distant 625.72 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

191.94 pc
625.72 ly
-2 km/s
0.059 arcsec/year
0.004 arcsec/year

Spectral properties of HR46

HR46 belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.

-1.30
M3III
3622K

The red dot in the diagram below shows where HR46 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR46. Attribution: Richard Powell / CC BY-SA

HR46 star system properties

HR46 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 HR46 double sysyem:

5.12
11.12
6
3 arcsec

Alternative designations of HR46

SAO128655
SAO128655