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

HR8342

HR8342 is a hypergiant star in the constellation of Cepheus.

HR8342 visual magnitude is 6.29. Because of its reltive faintness, HR8342 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 HR8342:

6.29
Hypergiant
HR8342 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 36°.

Celestial coordinates and finder chart of HR8342

HR8342 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8342 are provided in the following table:

21h 47m 00s
+70° 09’ 02”
108.41°
12.67°
Cepheus

The simplified sky map below shows the position of HR8342 in the sky:

Finder chart HR8342 star
Simplified finder chart for HR8342.

Visibility of HR8342 from your location

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

HR8342 is circumpolar and transits at 00:19 UTC (altitude: 71.3°)

Digitized Sky Survey image of HR8342

The image below is a photograph of HR8342 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 HR8342 is -0.004 arcsec per year in Right Ascension and -0.026 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8342 star
DSS2 image of HR8342. The red arrow shows the motion of HR8342 during the next 10000 years (-0.67 arcmin in Right Ascension and -4.33 arcmin in declination);

Distance of HR8342 from the Sun and relative movement

HR8342 is distant 492.45 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

151.06 pc
492.45 ly
-2 km/s
-0.004 arcsec/year
-0.026 arcsec/year

Spectral properties of HR8342

HR8342 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

0.39
A0V
10125K

The red dot in the diagram below shows where HR8342 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8342. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8342

SAO19646
SAO19646