HR8040

Altitude: 54.6° Azimuth: 291.7° Direction: West-North-West

HR8040 is a multiple main-sequence star in the constellation of Cygnus.

HR8040 visual magnitude is 5.61. Because of its reltive faintness, HR8040 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 HR8040:

Color of HR8040 ⬤

Magnitude of HR8040 5.61

Class Main-sequence

VISIBILITY RIGHT NOW

HR8040 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 54.6°
Azimuth: 291.7°
Direction: West-North-West

Celestial coordinates and finder chart of HR8040

HR8040 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 HR8040 are provided in the following table:

Right Ascension J2000 20h 58m 30s

Declination J2000 +50° 27’ 43”

Galactic Longitude 90.11°

Galactic Latitude 3.06°

Constellation Cygnus

The simplified sky map below shows the position of HR8040 in the sky:

Simplified finder chart for HR8040.

Visibility of HR8040 from your location

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

HR8040 is circumpolar and transits at 16:05 UTC (altitude: 89.0°)

Digitized Sky Survey image of HR8040

The image below is a photograph of HR8040 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 HR8040 is 0.013 arcsec per year in Right Ascension and 0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8040. The red arrow shows the motion of HR8040 during the next 10000 years (2.17 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR8040 from the Sun and relative movement

HR8040 is distant 1,263.57 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

Distance (parsec) 387.60 pc

Distance (light year) 1,263.57 ly

Heliocentric radial velocity -21 km/s

Proper Motion RA 0.013 arcsec/year

Proper Motion Dec 0.01 arcsec/year

Spectral properties of HR8040

HR8040 belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -2.33

Spectral Type B5V

Color Index (B-V) -0.15

Temperature of HR8040 12489K

The red dot in the diagram below shows where HR8040 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8040. Attribution: Richard Powell / CC BY-SA

HR8040 star system properties

HR8040 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR8040 double sysyem:

Main star magnitude 5.61

Secondary star magnitude 6.51

Magnitude difference 0.9

Separation 1.8 arcsec

Alternative designations of HR8040

Henry Draper Catalogue HD199955

SAO Catalogue SAO33034

Hipparcos Catalogue HIP103530

Durchmusterung Catalogue BD+49 3426

Aitken Double Star Catalogue ADS14504

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In Evidence

Other stars in Cygnus