Your guide to the Solar System and the night sky
Latest Perseverance Images received 4 hours 15 mins ago for Sol240, Sol236
Please help keep TheSkyLive ads-free, DONATE NOW via PayPal!. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]


HR2978 is a hypergiant star in the constellation of Gemini.

HR2978 visual magnitude is 6.21. Because of its reltive faintness, HR2978 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 HR2978:

HR2978 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR2978

HR2978 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 HR2978 are provided in the following table:

07h 43m 22s
+22° 23’ 57”

The simplified sky map below shows the position of HR2978 in the sky:

Finder chart HR2978 star
Simplified finder chart for HR2978.

Visibility of HR2978 from your location

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

Today's HR2978 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 67.6°
Max altitude: 60.9°
Azimuth: 292.4°
HR2978 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2978

The image below is a photograph of HR2978 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 HR2978 is -0.026 arcsec per year in Right Ascension and 0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR2978 star
DSS2 image of HR2978. The red arrow shows the motion of HR2978 during the next 10000 years (-4.33 arcmin in Right Ascension and 2.17 arcmin in declination);

Distance of HR2978 from the Sun and relative movement

HR2978 is distant 306.68 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

94.07 pc
306.68 ly
-3 km/s
-0.026 arcsec/year
0.013 arcsec/year

Spectral properties of HR2978

HR2978 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR2978 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2978. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2978