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🌎  Greenwich, United Kingdom [change]

HR1640

HR1640 is a sub-giant star in the constellation of Lepus.

HR1640 visual magnitude is 6.41. Because of its reltive faintness, HR1640 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 HR1640:

6.41
Sub-giant
HR1640 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR1640

HR1640 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 HR1640 are provided in the following table:

05h 03m 51s
-14° 22’ 09”
214.33°
-30.21°
Lepus

The simplified sky map below shows the position of HR1640 in the sky:

Finder chart HR1640 star
Simplified finder chart for HR1640.

Visibility of HR1640 from your location

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

Today's HR1640 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.4°
Max altitude: 24.2°
Azimuth: 255.6°
HR1640 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1640

The image below is a photograph of HR1640 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 HR1640 is -0.009 arcsec per year in Right Ascension and 0.033 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1640 star
DSS2 image of HR1640. The red arrow shows the motion of HR1640 during the next 10000 years (-1.50 arcmin in Right Ascension and 5.50 arcmin in declination);

Distance of HR1640 from the Sun and relative movement

HR1640 is distant 1,319.84 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

404.86 pc
1,319.84 ly
16 km/s
-0.009 arcsec/year
0.033 arcsec/year

Spectral properties of HR1640

HR1640 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.

-1.63
B2IV
13121K

The red dot in the diagram below shows where HR1640 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR1640. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1640

SAO150109
SAO150109