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🌎  Greenwich, United Kingdom [change]

HR4161

HR4161 is a double giant star in the constellation of Chamaeleon.

HR4161 visual magnitude is 7.07. Because of its reltive faintness, HR4161 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 HR4161:

7.07
Giant
HR4161 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4161

HR4161 is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4161 are provided in the following table:

10h 31m 50s
-81° 55’ 15”
298.01°
-20.42°
Chamaeleon

The simplified sky map below shows the position of HR4161 in the sky:

Finder chart HR4161 star
Simplified finder chart for HR4161.

Visibility of HR4161 from your location

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

HR4161 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4161

The image below is a photograph of HR4161 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 HR4161 is -0.033 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4161 star
DSS2 image of HR4161. The red arrow shows the motion of HR4161 during the next 10000 years (-5.50 arcmin in Right Ascension and 1.33 arcmin in declination);

Distance of HR4161 from the Sun and relative movement

HR4161 is distant 1,156.03 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

354.61 pc
1,156.03 ly
7 km/s
-0.033 arcsec/year
0.008 arcsec/year

Spectral properties of HR4161

HR4161 belongs to spectral class B5 and has a luminosity class of III corresponding to a giant star.

-0.68
B5III
11247K

The red dot in the diagram below shows where HR4161 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4161. Attribution: Richard Powell / CC BY-SA

HR4161 star system properties

HR4161 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4161 double sysyem:

7.07
9.57
2.5
41.9 arcsec

Alternative designations of HR4161

SAO258581
SAO258581