Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:38  ☀️ Transit: 13:03  🌅 Sunset: 19:28


HR3798 is a variable main-sequence star in the constellation of Antlia.

HR3798 visual magnitude is 6.46. Because of its reltive faintness, HR3798 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 HR3798:

HR3798 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 6°.

Celestial coordinates and finder chart of HR3798

HR3798 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3798 are provided in the following table:

09h 32m 18s
-28° 37’ 41”

The simplified sky map below shows the position of HR3798 in the sky:

Finder chart HR3798 star
Simplified finder chart for HR3798.

Visibility of HR3798 from your location

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

Today's HR3798 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 118.6°
Max altitude: 9.9°
Azimuth: 241.4°
HR3798 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3798

The image below is a photograph of HR3798 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 HR3798 is -0.072 arcsec per year in Right Ascension and 0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3798 star
DSS2 image of HR3798. The red arrow shows the motion of HR3798 during the next 10000 years (-12.00 arcmin in Right Ascension and 6.50 arcmin in declination);

Distance of HR3798 from the Sun and relative movement

HR3798 is distant 245.11 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

75.19 pc
245.11 ly
15 km/s
-0.072 arcsec/year
0.039 arcsec/year

Spectral properties of HR3798

HR3798 belongs to spectral class A9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3798 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3798. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3798