The sky around NGC 7689 at true scale, north up and east left, with stars to magnitude 8 and the NGC and IC objects in the field. The circles show the field of a low-power eyepiece and of 10×50 binoculars.
NGC 7689 is a mixed spiral galaxy in Phoenix, 74 million light-years away
NGC 7689 (ESO 192-007) is a mixed spiral galaxy in the constellation Phoenix, 74 million light-years away. It shines at magnitude 10.8 and spans 3.1′ × 2′ of sky, about 66,300 light-years across. It is a telescope object, 6 inches or larger, and it is highest in the evening sky in October.
Galaxy: a system of billions of stars, gas and dust held together by gravity, far outside the Milky Way. Spiral galaxies have a disk with arms; elliptical galaxies are smooth, round or oval swarms of older stars.
Finding NGC 7689 from ε Gru
NGC 7689 lies 7.3° southeast of ε Gru, the magnitude 3.5 star. Three fingers held at arm's length cover about 5°.
NGC 7689 is highest in the evening in October
The chart gives its height above the horizon at 9 pm through the year, from 60°N to 40°S. It can be seen from the whole southern hemisphere and north to about 36°N, and never sets south of 36°S.
NGC 7689 is 74 million light-years away
The light seen from NGC 7689 tonight left it about 74 million years ago, long before modern humans existed. Distance source: Cosmicflows-4 (Tully et al. 2023).
Objects within 6° of NGC 7689
10 NGC and IC objects lie within 6°. The nearest that are brighter than magnitude 12.5 or have their own page:
