Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:48  ☀️ Transit: 13:04  🌅 Sunset: 19:21


HR658 is a hypergiant star in the constellation of Cetus.

HR658 visual magnitude is 6.55. Because of its reltive faintness, HR658 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 HR658:

HR658 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 28°.

Celestial coordinates and finder chart of HR658

HR658 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 HR658 are provided in the following table:

02h 15m 28s
-09° 27’ 56”

The simplified sky map below shows the position of HR658 in the sky:

Finder chart HR658 star
Simplified finder chart for HR658.

Visibility of HR658 from your location

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

Today's HR658 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.5°
Max altitude: 29.1°
Azimuth: 260.5°
HR658 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR658

The image below is a photograph of HR658 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 HR658 is -0.003 arcsec per year in Right Ascension and 0.031 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR658 star
DSS2 image of HR658. The red arrow shows the motion of HR658 during the next 10000 years (-0.50 arcmin in Right Ascension and 5.17 arcmin in declination);

Distance of HR658 from the Sun and relative movement

HR658 is distant 510.17 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

156.49 pc
510.17 ly
-1 km/s
-0.003 arcsec/year
0.031 arcsec/year

Spectral properties of HR658

HR658 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR658 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR658. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR658