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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
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Cancer » 

HR3657

Altitude: -16.7°   Azimuth: 349.9°   Direction: North

HR3657 is a main-sequence star in the constellation of Cancer.

HR3657 visual magnitude is 6.48. Because of its reltive faintness, HR3657 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR3657 is -0.016 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3657 star
DSS2 image of HR3657. The red arrow shows the motion of HR3657 during the next 10000 years (-2.67 arcmin in Right Ascension and -1.33 arcmin in declination);

Key facts about HR3657

6.48
Main-sequence

HR3657 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -16.7°
Azimuth: 349.9°
Direction: North

Celestial coordinates and finder chart of HR3657

HR3657 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 HR3657 are provided in the following table:

09h 13m 37s
+21° 16’ 59”
207.2°
40.36°
Cancer

The simplified sky map below shows the position of HR3657 in the sky:

Finder chart HR3657 star
Simplified finder chart for HR3657.

Visibility of HR3657 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 HR3657 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: 68.7°
Max altitude: 59.8°
Azimuth: 291.3°

Distance of HR3657 from the Sun and relative movement

HR3657 is distant 496.19 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

152.21 pc
496.19 ly
9 km/s
-0.016 arcsec/year
-0.008 arcsec/year

Spectral properties of HR3657

HR3657 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

0.57
A2V
9882K

The red dot in the diagram below shows where HR3657 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3657. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3657

SAO80702
SAO80702