Your Guide to the Solar System and the Night Sky
This site is free and ad-free thanks to the support of our users. If you can, please consider a donation.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:43  
clear_day Transit: 12:51  
SunsetSet: 18:59 south
sunny DaytimeWhat's Visible Now
All Constellations » Serpens » 


Altitude: 53.8°   Azimuth: 216.1°   Direction: South-West

HR5740 is a hypergiant star in the constellation of Serpens.

HR5740 visual magnitude is 6.27. Because of its reltive faintness, HR5740 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 HR5740:


HR5740 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 53.8°
Azimuth: 216.1°
Direction: South-West

Celestial coordinates and finder chart of HR5740

HR5740 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR5740 are provided in the following table:

15h 25m 53s
+19° 28’ 50”

The simplified sky map below shows the position of HR5740 in the sky:

Finder chart HR5740 star
Simplified finder chart for HR5740.

Visibility of HR5740 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 HR5740 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: 70.5°
Max altitude: 58.0°
Azimuth: 289.5°

Digitized Sky Survey image of HR5740

The image below is a photograph of HR5740 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 HR5740 is -0.057 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5740 star
DSS2 image of HR5740. The red arrow shows the motion of HR5740 during the next 10000 years (-9.50 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR5740 from the Sun and relative movement

HR5740 is distant 136.12 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

41.75 pc
136.12 ly
-3 km/s
-0.057 arcsec/year
-0.006 arcsec/year

Spectral properties of HR5740

HR5740 belongs to spectral class G0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR5740 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5740. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5740