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

HR177

HR177 is a giant star in the constellation of Cassiopeia.

HR177 visual magnitude is 5.83. Because of its reltive faintness, HR177 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 HR177:

5.83
Giant
HR177 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 29°.

Celestial coordinates and finder chart of HR177

HR177 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 HR177 are provided in the following table:

00h 42m 03s
+66° 08’ 50”
121.98°
3.29°
Cassiopeia

The simplified sky map below shows the position of HR177 in the sky:

Finder chart HR177 star
Simplified finder chart for HR177.

Visibility of HR177 from your location

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

HR177 is circumpolar and transits at 15:32 UTC (altitude: 75.3°)

Digitized Sky Survey image of HR177

The image below is a photograph of HR177 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 HR177 is -0.013 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR177 star
DSS2 image of HR177. The red arrow shows the motion of HR177 during the next 10000 years (-2.17 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of HR177 from the Sun and relative movement

HR177 is distant 503.09 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

154.32 pc
503.09 ly
-3 km/s
-0.013 arcsec/year
-0.009 arcsec/year

Spectral properties of HR177

HR177 belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.

-0.11
G9III
4649K

The red dot in the diagram below shows where HR177 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR177. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR177

SAO11336
SAO11336