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🌎  Greenwich, United Kingdom [change]

HR4647

HR4647 is a variable giant star in the constellation of Hydra.

HR4647 visual magnitude is 6.5. Because of its reltive faintness, HR4647 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 HR4647:

6.5
Giant
HR4647 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4647

HR4647 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4647 are provided in the following table:

12h 13m 13s
-34° 07’ 32”
293.97°
28.08°
Hydra

The simplified sky map below shows the position of HR4647 in the sky:

Finder chart HR4647 star
Simplified finder chart for HR4647.

Visibility of HR4647 from your location

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

Today's HR4647 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 124.1°
Max altitude: 4.4°
Azimuth: 235.9°
HR4647 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4647

The image below is a photograph of HR4647 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 HR4647 is -0.03 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4647 star
DSS2 image of HR4647. The red arrow shows the motion of HR4647 during the next 10000 years (-5.00 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR4647 from the Sun and relative movement

HR4647 is distant 910.61 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

279.33 pc
910.61 ly
3 km/s
-0.03 arcsec/year
-0.006 arcsec/year

Spectral properties of HR4647

HR4647 belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.

-0.73
M4III
3568K

The red dot in the diagram below shows where HR4647 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4647. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4647

SAO203245
SAO203245