NGC 5389 — S0-a in Ursa Major
S0-a in Ursa Major, 3.3 arcminutes across, its light 89 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 5389
What you are looking at
NGC 5389 is a lenticular galaxy: a disc galaxy that has largely used up the gas it needs to form new stars, so its disc is smooth and has no spiral arms. We see it almost exactly edge-on, so its whole disc appears as one thin band of light, with dust showing as a dark line along its length. From edge to edge its visible disc spans about 84,000 light-years, close to the width of the Milky Way.
What astronomers have recorded
SIMBAD, the reference database astronomers use, classes it as a member of a group of galaxies. It is cited in 81 scientific papers indexed by SIMBAD, and recorded there under 14 different catalogue designations.
When this light set out
The light that reaches us from NGC 5389 today set out about 89 million years ago, when dinosaurs were at their peak. The galaxy is moving away from us at about 1,847 km/s (4.1 million mph), carried by the expansion of the universe.
Finding it in the sky
NGC 5389 lies in Ursa Major. From most of the United States it never sets: it circles the north celestial pole all year, and stands highest on spring evenings, around May.
Its neighbours
At almost the same distance from us, and so its neighbours in space as well as on the sky: NGC 5379 (4′ away on the sky, at least 100,000 light-years from it); NGC 5376 (0.3° away on the sky, at least 400,000 light-years from it); UGC 8741 (0.9° away on the sky, at least 1,400,000 light-years from it); UGC 8909 (1.1° away on the sky, at least 1,700,000 light-years from it), and 6 more.
By apparent size it is number 425 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 49548 |
|---|---|
| Morphological type | S0-a |
| Angular diameter | 3.27′ |
| Right ascension | 13h56m06.3s |
| Declination | +59°44′31.2″ |
| Constellation | Ursa Major |
| Inclination | 90.0° |
| Light travel time | 89 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 3.3 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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