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

HR28

HR28 is a sub-giant star in the constellation of Cassiopeia.

HR28 visual magnitude is 6.74. Because of its reltive faintness, HR28 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 HR28:

6.74
Sub-giant
HR28 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 20°.

Celestial coordinates and finder chart of HR28

HR28 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR28 are provided in the following table:

00h 10m 29s
+57° 09’ 56”
117.38°
-5.26°
Cassiopeia

The simplified sky map below shows the position of HR28 in the sky:

Finder chart HR28 star
Simplified finder chart for HR28.

Visibility of HR28 from your location

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

HR28 is circumpolar and transits at 15:00 UTC (altitude: 84.3°)

Digitized Sky Survey image of HR28

The image below is a photograph of HR28 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 HR28 is 0.023 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 HR28 star
DSS2 image of HR28. The red arrow shows the motion of HR28 during the next 10000 years (3.83 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of HR28 from the Sun and relative movement

HR28 is distant 500.00 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

153.37 pc
500.00 ly
2 km/s
0.023 arcsec/year
0.006 arcsec/year

Spectral properties of HR28

HR28 belongs to spectral class B7 and has a luminosity class of IV corresponding to a sub-giant star.

0.81
B7IV
11247K

The red dot in the diagram below shows where HR28 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR28. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR28

SAO21162
SAO21162