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: 4:47  
clear_day Transit: 12:56  
SunsetSet: 21:06 south
sunny DaytimeWhat's Visible Now
All Constellations » Piscis Austrinus » 


HR8740 is a variable star in the constellation of Piscis Austrinus.

HR8740 visual magnitude is 5.51. Because of its reltive faintness, HR8740 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 HR8740:

HR8740 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 8°.

Celestial coordinates and finder chart of HR8740

HR8740 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8740 are provided in the following table:

22h 59m 35s
-29° 27’ 43”
Piscis Austrinus

The simplified sky map below shows the position of HR8740 in the sky:

Finder chart HR8740 star
Simplified finder chart for HR8740.

Visibility of HR8740 from your location

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

Today's HR8740 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.5°
Max altitude: 9.1°
Azimuth: 240.5°
HR8740 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR8740

The image below is a photograph of HR8740 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 HR8740 is -0.003 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR8740 star
DSS2 image of HR8740. The red arrow shows the motion of HR8740 during the next 100000 years (-5.00 arcmin in Right Ascension and 15.00 arcmin in declination);

Distance of HR8740 from the Sun and relative movement

HR8740 is distant 366.29 light years from the Sun

112.36 pc
366.29 ly
-0.003 arcsec/year
0.009 arcsec/year

Spectral properties of HR8740

HR8740 belongs to spectral class A5


The red dot in the diagram below shows where HR8740 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR8740. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8740