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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: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 

HR4117

Altitude: -34.2°   Azimuth: 96.1°   Direction: East

HR4117 is a giant star in the constellation of Hydra.

HR4117 visual magnitude is 5.58. Because of its reltive faintness, HR4117 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 HR4117:

5.58
Giant

HR4117 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -34.2°
Azimuth: 96.1°
Direction: East

Celestial coordinates and finder chart of HR4117

HR4117 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 HR4117 are provided in the following table:

10h 29m 29s
-29° 39’ 48”
269.46°
23.83°
Hydra

The simplified sky map below shows the position of HR4117 in the sky:

Finder chart HR4117 star
Simplified finder chart for HR4117.

Visibility of HR4117 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 HR4117 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: 119.7°
Max altitude: 8.9°
Azimuth: 240.3°

Digitized Sky Survey image of HR4117

The image below is a photograph of HR4117 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 HR4117 is -0.059 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4117 star
DSS2 image of HR4117. The red arrow shows the motion of HR4117 during the next 10000 years (-9.83 arcmin in Right Ascension and 2.50 arcmin in declination);

Distance of HR4117 from the Sun and relative movement

HR4117 is distant 387.17 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

118.76 pc
387.17 ly
-5 km/s
-0.059 arcsec/year
0.015 arcsec/year

Spectral properties of HR4117

HR4117 belongs to spectral class K5 and has a luminosity class of III corresponding to a giant star.

0.21
K5III
3918K

The red dot in the diagram below shows where HR4117 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4117. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4117

SAO178888
SAO178888