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: 6:47  
clear_day Transit: 12:50  
SunsetSet: 18:52 south
sunny DaytimeWhat's Visible Now
All Constellations » Cassiopeia » 

HR278

Altitude: 35.7°   Azimuth: 345.1°   Direction: North-North-West

HR278 is a sub-giant star in the constellation of Cassiopeia.

HR278 visual magnitude is 6.39. Because of its reltive faintness, HR278 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 HR278:

6.39
Sub-giant

HR278 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 35.7°
Azimuth: 345.1°
Direction: North-North-West

Celestial coordinates and finder chart of HR278

HR278 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 HR278 are provided in the following table:

01h 00m 30s
+70° 58’ 59”
123.68°
8.12°
Cassiopeia

The simplified sky map below shows the position of HR278 in the sky:

Finder chart HR278 star
Simplified finder chart for HR278.

Visibility of HR278 from your location

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

HR278 is circumpolar and transits at 00:50 UTC (altitude: 70.5°)

Digitized Sky Survey image of HR278

The image below is a photograph of HR278 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 HR278 is 0.082 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR278 star
DSS2 image of HR278. The red arrow shows the motion of HR278 during the next 10000 years (13.67 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of HR278 from the Sun and relative movement

HR278 is distant 355.12 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

108.93 pc
355.12 ly
6 km/s
0.082 arcsec/year

Spectral properties of HR278

HR278 belongs to spectral class A4 and has a luminosity class of IV corresponding to a sub-giant star.

1.20
A4IV
8748K

The red dot in the diagram below shows where HR278 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR278. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR278

SAO4288
SAO4288