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: 4:43  
clear_day Transit: 12:58  
SunsetSet: 21:13 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Camelopardalis » 

HR1255

Altitude: 17.3°   Azimuth: 14.3°   Direction: North-North-East

HR1255 is a hypergiant star in the constellation of Camelopardalis.

HR1255 visual magnitude is 6.31. Because of its reltive faintness, HR1255 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 HR1255:

6.31
Hypergiant

HR1255 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 17.3°
Azimuth: 14.3°
Direction: North-North-East

Celestial coordinates and finder chart of HR1255

HR1255 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 HR1255 are provided in the following table:

04h 06m 36s
+54° 00’ 30”
149.18°
1.4°
Camelopardalis

The simplified sky map below shows the position of HR1255 in the sky:

Finder chart HR1255 star
Simplified finder chart for HR1255.

Visibility of HR1255 from your location

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

HR1255 is circumpolar and transits at 10:48 UTC (altitude: 87.5°)

Digitized Sky Survey image of HR1255

The image below is a photograph of HR1255 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 HR1255 is 0.055 arcsec per year in Right Ascension and -0.099 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR1255 star
DSS2 image of HR1255. The red arrow shows the motion of HR1255 during the next 1000 years (0.92 arcmin in Right Ascension and -1.65 arcmin in declination);

Distance of HR1255 from the Sun and relative movement

HR1255 is distant 319.29 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

97.94 pc
319.29 ly
-8 km/s
0.055 arcsec/year
-0.099 arcsec/year

Spectral properties of HR1255

HR1255 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

1.36
K0III
4767K

The red dot in the diagram below shows where HR1255 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR1255. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1255

SAO24411
SAO24411