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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Carina » 


Altitude: -82.4°   Azimuth: 158.1°   Direction: South-South-East

HR3691 is a variable sub-giant star in the constellation of Carina.

HR3691 visual magnitude is 6.02. Because of its reltive faintness, HR3691 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 HR3691:


HR3691 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -82.4°
Azimuth: 158.1°
Direction: South-South-East

Celestial coordinates and finder chart of HR3691

HR3691 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 HR3691 are provided in the following table:

09h 15m 17s
-58° 23’ 18”

The simplified sky map below shows the position of HR3691 in the sky:

Finder chart HR3691 star
Simplified finder chart for HR3691.

Visibility of HR3691 from your location

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

HR3691 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3691

The image below is a photograph of HR3691 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 HR3691 is -0.022 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 HR3691 star
DSS2 image of HR3691. The red arrow shows the motion of HR3691 during the next 10000 years (-3.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR3691 from the Sun and relative movement

HR3691 is distant 522.44 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

160.26 pc
522.44 ly
16 km/s
-0.022 arcsec/year
-0.006 arcsec/year

Spectral properties of HR3691

HR3691 belongs to spectral class B7 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3691 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3691. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3691