Guniibuu - 36 Ophiuchi

Guniibuu, also designated as 36 Ophiuchi , is a multiple hypergiant star in the constellation of Ophiuchus.

Guniibuu visual magnitude is 5.07. Because of its reltive faintness, Guniibuu 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 Guniibuu:

Color of Guniibuu ⬤

Magnitude of Guniibuu 5.07

Class Hypergiant

VISIBILITY RIGHT NOW Guniibuu - 36 Ophiuchi is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of Guniibuu

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

Right Ascension J2000 17h 15m 20s

Declination J2000 -26° 36’ 05”

Galactic Longitude 358.3°

Galactic Latitude 6.88°

Constellation Ophiuchus

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

Finder chart Guniibuu - 36 Ophiuchi star

Simplified finder chart for Guniibuu - 36 Ophiuchi.

Visibility of Guniibuu from your location

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

Today's Guniibuu - 36 Ophiuchi rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 116.6° RISE 2:19

Max altitude: 11.9° TRANSIT 5:42

Azimuth: 243.4° SET 9:05

RIGHT NOW Guniibuu - 36 Ophiuchi is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of Guniibuu

The image below is a photograph of Guniibuu 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 Guniibuu is -0.491 arcsec per year in Right Ascension and -1.133 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

DSS2 image of Guniibuu. The red arrow shows the motion of Guniibuu during the next 100 years (-0.82 arcmin in Right Ascension and -1.89 arcmin in declination);

Distance of Guniibuu from the Sun and relative movement

Guniibuu is distant 19.51 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 5.99 pc

Distance (light year) 19.51 ly

Heliocentric radial velocity -1 km/s

Proper Motion RA -0.491 arcsec/year

Proper Motion Dec -1.133 arcsec/year

Spectral properties of Guniibuu

Guniibuu belongs to spectral class K0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 6.18

Spectral Type K0V

Color Index (B-V) 0.85

Temperature of Guniibuu 5134K

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

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

Alternative designations of Guniibuu

Proper Name Guniibuu

Flamsteed designation 36 Ophiuchi

Henry Draper Catalogue HD155886

SAO Catalogue SAO185198

Durchmusterung Catalogue CD-2612026

Gliese Catalogue Gl 663 A

Aitken Double Star Catalogue ADS10417

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Other stars in Ophiuchus