Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:48  
clear_day Transit: 12:56  
SunsetSet: 21:05 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Cepheus » 


HR333 is a main-sequence star in the constellation of Cepheus.

HR333 visual magnitude is 5.64. Because of its reltive faintness, HR333 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 HR333:

HR333 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 43°.

Celestial coordinates and finder chart of HR333

HR333 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 HR333 are provided in the following table:

01h 12m 16s
+79° 40’ 26”

The simplified sky map below shows the position of HR333 in the sky:

Finder chart HR333 star
Simplified finder chart for HR333.

Visibility of HR333 from your location

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

HR333 is circumpolar and transits at 08:30 UTC (altitude: 61.8°)

Digitized Sky Survey image of HR333

The image below is a photograph of HR333 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 HR333 is 0.091 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR333 star
DSS2 image of HR333. The red arrow shows the motion of HR333 during the next 1000 years (1.52 arcmin in Right Ascension and -0.08 arcmin in declination);

Distance of HR333 from the Sun and relative movement

HR333 is distant 272.12 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

83.47 pc
272.12 ly
18 km/s
0.091 arcsec/year
-0.005 arcsec/year

Spectral properties of HR333

HR333 belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR333 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR333. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR333