NGC 4596 — S0-a in Virgo
S0-a in Virgo, 3.9 arcminutes across, its light 90 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 4596
What you are looking at
NGC 4596 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. It is tilted about 37° to our line of sight, enough to show both the shape of its arms and the depth of its disc. From edge to edge its visible disc spans about 103,000 light-years, close to the width of the Milky Way.
What astronomers have recorded
SIMBAD, the reference database astronomers use, classes it as one of a pair of galaxies. It is cited in 396 scientific papers indexed by SIMBAD, and recorded there under 22 different catalogue designations.
When this light set out
What a telescope records of NGC 4596 is light that left it about 90 million years ago; on Earth, dinosaurs were at their peak. The galaxy is moving away from us at about 1,879 km/s (4.2 million mph), carried by the expansion of the universe.
Finding it in the sky
In the sky, NGC 4596 sits within the constellation Virgo. It is best placed on spring evenings: around 9:30 pm in May it stands about 60° high in the south, seen from the middle of the United States.
Its neighbours
It lies in the direction of the Virgo Cluster and at a matching speed, which places it among the cluster’s more than a thousand galaxies, the nearest large cluster to the Milky Way. At almost the same distance from us, and so its neighbours in space as well as on the sky: NGC 4608 (0.3° away on the sky, at least 500,000 light-years from it); NGC 4606 (1.8° away on the sky, at least 2,750,000 light-years from it); NGC 4598 (1.8° away on the sky, at least 2,810,000 light-years from it); NGC 4641 (2.0° away on the sky, at least 3,190,000 light-years from it), and 7 more.
By apparent size it is number 251 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 42401 |
|---|---|
| Morphological type | S0-a |
| Angular diameter | 3.93′ |
| Right ascension | 12h39m55.9s |
| Declination | +10°10′34.2″ |
| Constellation | Virgo |
| Inclination | 36.6° |
| Light travel time | 90 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 3.9 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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