HR2187

HR2187 is a double bright giant star in the constellation of Puppis.

HR2187 visual magnitude is 6.27. Because of its reltive faintness, HR2187 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 HR2187:

Color of HR2187 ⬤

Magnitude of HR2187 6.27

Class Bright giant

VISIBILITY RIGHT NOW HR2187 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR2187

HR2187 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2187 are provided in the following table:

Right Ascension J2000 06h 08m 34s

Declination J2000 -44° 21’ 21”

Galactic Longitude 251.57°

Galactic Latitude -25.92°

Constellation Puppis

The simplified sky map below shows the position of HR2187 in the sky:

Simplified finder chart for HR2187.

Visibility of HR2187 from your location

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

HR2187 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2187

The image below is a photograph of HR2187 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 HR2187 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 HR2187. The red arrow shows the motion of HR2187 during the next 10000 years (-2.17 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR2187 from the Sun and relative movement

HR2187 is distant 751.15 light years from the Sun and it is moving far from the Sun at the speed of 17 kilometers per second.

Distance (parsec) 230.41 pc

Distance (light year) 751.15 ly

Heliocentric radial velocity 17 km/s

Proper Motion RA -0.013 arcsec/year

Proper Motion Dec 0.01 arcsec/year

Spectral properties of HR2187

HR2187 belongs to spectral class B8 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude -0.54

Spectral Type B8II

Color Index (B-V) -0.15

Temperature of HR2187 12489K

The red dot in the diagram below shows where HR2187 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2187. Attribution: Richard Powell / CC BY-SA

HR2187 star system properties

HR2187 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR2187 double sysyem:

Main star magnitude 6.27

Secondary star magnitude 13.07

Magnitude difference 6.8

Separation 33.1 arcsec

Alternative designations of HR2187

Henry Draper Catalogue HD42448

SAO Catalogue SAO217735

Hipparcos Catalogue HIP29129

Durchmusterung Catalogue CD-44 2452

In Evidence

Other stars in Puppis