HR1243

Altitude: 48.1° Azimuth: 191.1° Direction: South

HR1243 is a multiple main-sequence star in the constellation of Taurus.

HR1243 visual magnitude is 5.67. Because of its reltive faintness, HR1243 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 HR1243:

Color of HR1243 ⬤

Magnitude of HR1243 5.67

Class Main-sequence

VISIBILITY RIGHT NOW

HR1243 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 48.1°
Azimuth: 191.1°
Direction: South

Celestial coordinates and finder chart of HR1243

HR1243 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 HR1243 are provided in the following table:

Right Ascension J2000 04h 01m 46s

Declination J2000 +09° 59’ 52”

Galactic Longitude 180.76°

Galactic Latitude -30.8°

Constellation Taurus

The simplified sky map below shows the position of HR1243 in the sky:

Simplified finder chart for HR1243.

Visibility of HR1243 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 HR1243 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: 80.0° RISE 15:51

Max altitude: 48.5° TRANSIT 22:40

Azimuth: 280.0° SET 5:33

Digitized Sky Survey image of HR1243

The image below is a photograph of HR1243 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 HR1243 is 0.005 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR1243. The red arrow shows the motion of HR1243 during the next 100000 years (8.33 arcmin in Right Ascension and -8.33 arcmin in declination);

Distance of HR1243 from the Sun and relative movement

HR1243 is distant 564.99 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 173.31 pc

Distance (light year) 564.99 ly

Heliocentric radial velocity 3 km/s

Proper Motion RA 0.005 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR1243

HR1243 belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.52

Spectral Type B5V

Color Index (B-V) 0.02

Temperature of HR1243 9882K

The red dot in the diagram below shows where HR1243 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1243. Attribution: Richard Powell / CC BY-SA

HR1243 star system properties

HR1243 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 HR1243 double sysyem:

Main star magnitude 5.67

Secondary star magnitude 10.87

Magnitude difference 5.2

Separation 12 arcsec

Alternative designations of HR1243

Henry Draper Catalogue HD25330

SAO Catalogue SAO111566

Hipparcos Catalogue HIP18805

Durchmusterung Catalogue BD+09 528

Aitken Double Star Catalogue ADS2938

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