NGC 613 — Sbc in Sculptor
Sbc in Sculptor, 5.4 arcminutes across, its light 71 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 613
What you are looking at
NGC 613 is a spiral of the same broad class astronomers give the Milky Way: a moderate bulge and clearly drawn arms. It is tilted about 36° 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 111,000 light-years (taking its redshift distance, which for a galaxy this near is approximate), close to the width of the Milky Way.
What astronomers have recorded
SIMBAD, the reference database astronomers use, classes it as a galaxy with an active nucleus, powered by its central black hole. Boris Vorontsov-Velyaminov listed it as VV 824 in his catalogue of interacting galaxies. One supernova has been recorded in it: SN 2016gkg. It is cited in 452 scientific papers indexed by SIMBAD, and recorded there under 37 different catalogue designations.
When this light set out
What a telescope records of NGC 613 is light that left it about 71 million years ago; on Earth, dinosaurs were at their peak. The galaxy is moving away from us at about 1,484 km/s (3.3 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 613 sits within the constellation Sculptor. It is best placed on autumn evenings: around 9:30 pm in November it stands about 21° high in the south, seen from the middle of the United States.
By apparent size it is number 103 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 5849 |
|---|---|
| Morphological type | Sbc |
| Angular diameter | 5.38′ |
| Right ascension | 01h34m18.2s |
| Declination | -29°25′06.4″ |
| Constellation | Sculptor |
| Inclination | 35.7° |
| Light travel time | 71 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 5.4 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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