NGC 2293 — S0-a in Canis Major
S0-a in Canis Major, 4.4 arcminutes across, its light 98 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 2293
What you are looking at
NGC 2293 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 46° 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 125,000 light-years, about 1.3 times the width of the Milky Way.
What astronomers have recorded
Boris Vorontsov-Velyaminov listed it as VV 178 in his catalogue of interacting galaxies. It is cited in 71 scientific papers indexed by SIMBAD, and recorded there under 16 different catalogue designations.
When this light set out
What a telescope records of NGC 2293 is light that left it about 98 million years ago; on Earth, dinosaurs were at their peak. The galaxy is moving away from us at about 2,037 km/s (4.6 million mph), carried by the expansion of the universe.
Finding it in the sky
In the sky, NGC 2293 sits within the constellation Canis Major. It is best placed on winter evenings: around 9:30 pm in February it stands about 23° high in the south, seen from the middle of the United States.
Its neighbours
At almost the same distance from us, and so its neighbours in space as well as on the sky: NGC 2292 (1′ away on the sky, at least 20,000 light-years from it); NGC 2295 (4′ away on the sky, at least 130,000 light-years from it); NGC 2280 (1.1° away on the sky, at least 1,860,000 light-years from it).
By apparent size it is number 171 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 19619 |
|---|---|
| Morphological type | S0-a |
| Angular diameter | 4.41′ |
| Right ascension | 06h47m42.7s |
| Declination | -26°45′13.8″ |
| Constellation | Canis Major |
| Inclination | 45.8° |
| Light travel time | 98 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 4.4 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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