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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:17
wb_twilight   (Civil Twilight)   What's Visible Now?


Below the horizon.  Rise: 5:19 | Tran: 14:57 | Set: 0:36
Altitude: -2.7°   Azimuth: 20.1°   Direction: North-North-East

HR3040 is a variable and double main-sequence star of spectral class A2 in the constellation of Gemini.

HR3040 visual magnitude is 6.03. Because of its faintness, HR3040 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR3040

Finder chart HR3040 star
Simplified finder chart for HR3040.

HR3040 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 HR3040 are provided in the following table:

07h 51m 02s
+33° 14’ 00”
Image of HR3040 star
DSS2 image of HR3040. The red arrow shows the motion of HR3040 during the next 10000 years (-2.83 arcmin in Right Ascension and 0.17 arcmin in declination);

Key facts about HR3040


and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3040 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3040. Attribution: Richard Powell / CC BY-SA

HR3040 star system properties

HR3040 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR3040 double sysyem:

77.8 arcsec

Distance of HR3040 from the Sun and relative movement

HR3040 is distant 207.78 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

63.73 pc
207.78 ly
-10 km/s
-0.017 arcsec/year
0.001 arcsec/year

Alternative designations of HR3040


Visibility of HR3040 from your location

Today's HR3040 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.8°
Max altitude: 71.8°
Azimuth: 303.2°