NGC 2775 — Sab in Cancer
Sab in Cancer, 4.2 arcminutes across, its light 65 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 2775
What you are looking at
NGC 2775 is an early-type spiral: a large, bright central bulge wrapped in smooth, tightly wound arms. It is tilted about 40° 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 80,000 light-years (taking its redshift distance, which for a galaxy this near is approximate), about 82% of the Milky Way’s width.
What astronomers have recorded
Patrick Moore listed it as Caldwell 48 in his 1995 catalogue of the finest deep-sky objects for amateur observers. One supernova has been recorded in it: SN 1993Z. It is cited in 383 scientific papers indexed by SIMBAD, and recorded there under 20 different catalogue designations.
When this light set out
Its light has been travelling for about 65 million years. When it left, an asteroid had ended the age of dinosaurs. The galaxy is moving away from us at about 1,354 km/s (3.0 million mph), carried by the expansion of the universe. For a galaxy this close, its own motion through space is a large share of that speed, so the distance worked out from it is approximate; distances measured from individual stars in it can differ.
Finding it in the sky
In the sky, NGC 2775 sits within the constellation Cancer. It is best placed on spring evenings: around 9:30 pm in March it stands about 57° 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: UGC 4797 (1.2° away on the sky, at least 1,400,000 light-years from it).
By apparent size it is number 201 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 25861 |
|---|---|
| Morphological type | Sab |
| Angular diameter | 4.25′ |
| Right ascension | 09h10m20.1s |
| Declination | +07°02′16.7″ |
| Constellation | Cancer |
| Inclination | 40.0° |
| Light travel time | 65 million years |
| Bar | not recorded |
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 4.2 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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