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: 7:00  
clear_day Transit: 12:48  
SunsetSet: 18:34 south
sunny DaytimeWhat's Visible Now
All Constellations » Serpens » 


Altitude: 53.7°   Azimuth: 130.8°   Direction: South-East

HR5665 is a main-sequence star in the constellation of Serpens.

HR5665 visual magnitude is 6.3. Because of its reltive faintness, HR5665 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 HR5665:


HR5665 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 53.7°
Azimuth: 130.8°
Direction: South-East

Celestial coordinates and finder chart of HR5665

HR5665 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 HR5665 are provided in the following table:

15h 13m 31s
+22° 58’ 59”

The simplified sky map below shows the position of HR5665 in the sky:

Finder chart HR5665 star
Simplified finder chart for HR5665.

Visibility of HR5665 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 HR5665 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: 67.0°
Max altitude: 61.5°
Azimuth: 293.0°

Digitized Sky Survey image of HR5665

The image below is a photograph of HR5665 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 HR5665 is 0.049 arcsec per year in Right Ascension and 0.093 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR5665 star
DSS2 image of HR5665. The red arrow shows the motion of HR5665 during the next 1000 years (0.82 arcmin in Right Ascension and 1.55 arcmin in declination);

Distance of HR5665 from the Sun and relative movement

HR5665 is distant 281.52 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

86.36 pc
281.52 ly
-5 km/s
0.049 arcsec/year
0.093 arcsec/year

Spectral properties of HR5665

HR5665 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR5665 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5665. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5665