108 Aquarii

Altitude: -22.2° Azimuth: 92.8° Direction: East

108 Aquarii is a variable star in the constellation of Aquarius.

108 Aquarii visual magnitude is 5.18. Because of its reltive faintness, 108 Aquarii 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 108 Aquarii:

Color of 108 Aquarii ⬤

Magnitude of 108 Aquarii 5.18

Class

VISIBILITY RIGHT NOW

108 Aquarii is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -22.2°
Azimuth: 92.8°
Direction: East

Celestial coordinates and finder chart of 108 Aquarii

108 Aquarii 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 108 Aquarii are provided in the following table:

Right Ascension J2000 23h 51m 21s

Declination J2000 -18° 54’ 32”

Galactic Longitude 60.54°

Galactic Latitude -73.94°

Constellation Aquarius

The simplified sky map below shows the position of 108 Aquarii in the sky:

Simplified finder chart for 108 Aquarii.

Visibility of 108 Aquarii 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 108 Aquarii 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: 108.9° RISE 15:01

Max altitude: 19.6° TRANSIT 19:17

Azimuth: 251.1° SET 23:34

Digitized Sky Survey image of 108 Aquarii

The image below is a photograph of 108 Aquarii 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 108 Aquarii is 0.021 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 108 Aquarii. The red arrow shows the motion of 108 Aquarii during the next 10000 years (3.50 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of 108 Aquarii from the Sun and relative movement

108 Aquarii is distant 320.87 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 98.43 pc

Distance (light year) 320.87 ly

Heliocentric radial velocity 13 km/s

Proper Motion RA 0.021 arcsec/year

Spectral properties of 108 Aquarii

108 Aquarii belongs to spectral class B9 108 Aquarii is also a SiSrCr chemically peculiar star.

Absolute magnitude 0.21

Spectral Type B9

Color Index (B-V) -0.14

Temperature of 108 Aquarii 12293K

The red dot in the diagram below shows where 108 Aquarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 108 Aquarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 108 Aquarii

Flamsteed designation 108 Aquarii

Henry Draper Catalogue HD223640

SAO Catalogue SAO165918

Hipparcos Catalogue HIP117629

Durchmusterung Catalogue BD-19 6522

General Catalogue of Variable Stars ET Aqr

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In Evidence

Other stars in Aquarius