74 Aquarii

Altitude: 26.1° Azimuth: 192.9° Direction: South-South-West

74 Aquarii is a variable and double giant star in the constellation of Aquarius.

74 Aquarii visual magnitude is 5.8. Because of its reltive faintness, 74 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 74 Aquarii:

Color of 74 Aquarii ⬤

Magnitude of 74 Aquarii 5.8

Class Giant

VISIBILITY RIGHT NOW

74 Aquarii is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 26.1°
Azimuth: 192.9°
Direction: South-South-West

Celestial coordinates and finder chart of 74 Aquarii

74 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 74 Aquarii are provided in the following table:

Right Ascension J2000 22h 53m 28s

Declination J2000 -11° 37’ 00”

Galactic Longitude 56.42°

Galactic Latitude -58.28°

Constellation Aquarius

The simplified sky map below shows the position of 74 Aquarii in the sky:

Simplified finder chart for 74 Aquarii.

Visibility of 74 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 74 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: 101.6° RISE 1:53

Max altitude: 26.9° TRANSIT 6:51

Azimuth: 258.4° SET 11:50

RIGHT NOW 74 Aquarii is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 74 Aquarii

The image below is a photograph of 74 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 74 Aquarii is 0.025 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 74 Aquarii. The red arrow shows the motion of 74 Aquarii during the next 10000 years (4.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Distance of 74 Aquarii from the Sun and relative movement

74 Aquarii is distant 657.26 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 201.61 pc

Distance (light year) 657.26 ly

Heliocentric radial velocity -7 km/s

Proper Motion RA 0.025 arcsec/year

Proper Motion Dec 0.001 arcsec/year

Spectral properties of 74 Aquarii

74 Aquarii belongs to spectral class B9 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.72

Spectral Type B9III

Color Index (B-V) -0.08

Temperature of 74 Aquarii 11247K

The red dot in the diagram below shows where 74 Aquarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 74 Aquarii. Attribution: Richard Powell / CC BY-SA

74 Aquarii star system properties

74 Aquarii 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 74 Aquarii double sysyem:

Main star magnitude 5.8

Secondary star magnitude 6.3

Magnitude difference 0.5

Separation 0.1 arcsec

Alternative designations of 74 Aquarii

Flamsteed designation 74 Aquarii

Henry Draper Catalogue HD216494

SAO Catalogue SAO165359

Hipparcos Catalogue HIP113031

Durchmusterung Catalogue BD-12 6371

General Catalogue of Variable Stars HI Aqr

In Evidence

Other stars in Aquarius