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: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
sunny DaytimeWhat's Visible Now
All Constellations » Leo Minor » 


Altitude: 74.2°   Azimuth: 202.9°   Direction: South-South-West

HR3727 is a hypergiant star in the constellation of Leo Minor.

HR3727 visual magnitude is 6.67. Because of its reltive faintness, HR3727 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 HR3727:


HR3727 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 74.2°
Azimuth: 202.9°
Direction: South-South-West

Celestial coordinates and finder chart of HR3727

HR3727 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3727 are provided in the following table:

09h 24m 22s
+36° 35’ 12”
Leo Minor

The simplified sky map below shows the position of HR3727 in the sky:

Finder chart HR3727 star
Simplified finder chart for HR3727.

Visibility of HR3727 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 HR3727 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: 53.4°
Max altitude: 75.1°
Azimuth: 306.6°
HR3727 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3727

The image below is a photograph of HR3727 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 HR3727 is -0.068 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3727 star
DSS2 image of HR3727. The red arrow shows the motion of HR3727 during the next 10000 years (-11.33 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of HR3727 from the Sun and relative movement

HR3727 is distant 307.84 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

94.43 pc
307.84 ly
15 km/s
-0.068 arcsec/year
-0.024 arcsec/year

Spectral properties of HR3727

HR3727 belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3727 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3727. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3727