NGC 7416 — SBb in Aquarius
SBb in Aquarius, 3.1 arcminutes across, its light 137 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 7416
What you are looking at
NGC 7416 is a spiral with a sizeable central bulge and well-defined arms, close in type to the Milky Way. A bar of stars runs straight across its centre, as one does across the centre of the Milky Way. Its disc is turned almost exactly side-on to us: the galaxy appears as a narrow blade of light, and its dust as a dark seam running along it. From edge to edge its visible disc spans about 122,000 light-years, about 1.2 times the width of the Milky Way.
What astronomers have recorded
SIMBAD, the reference database astronomers use, classes it as a Seyfert galaxy: its nucleus is lit by gas falling into its central black hole, though dust hides part of that glow from us. It is cited in 68 scientific papers indexed by SIMBAD, and recorded there under 12 different catalogue designations.
When this light set out
What a telescope records of NGC 7416 is light that left it about 137 million years ago; on Earth, the first birds had appeared. The galaxy is moving away from us at about 2,858 km/s (6.4 million mph), carried by the expansion of the universe.
Finding it in the sky
In the sky, NGC 7416 sits within the constellation Aquarius. It is best placed on autumn evenings: around 9:30 pm in October it stands about 45° high in the south, seen from the middle of the United States.
By apparent size it is number 490 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 70025 |
|---|---|
| Morphological type | SBb |
| Angular diameter | 3.08′ |
| Right ascension | 22h55m41.7s |
| Declination | -05°29′43.4″ |
| Constellation | Aquarius |
| Inclination | 90.0° |
| Light travel time | 137 million years |
| Bar | yes, from the catalogue |
Check every figure above in the NASA/IPAC Extragalactic Database
What is sold
A print of this galaxy and the record of the calculation, once. When it sells it leaves the register and is not offered again. We assign no names and no ownership — nobody can sell you those.
At 3.1 arcminutes this is a Exceptional galaxy, which is the tier where a real photograph shows clear structure and dust lanes. The tier comes from the measured diameter, not from a price list.
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