NGC 6907 — Sbc in Capricornus
Sbc in Capricornus, 3.3 arcminutes across, its light 152 million years old. Measured by HyperLEDA, photographed by Pan-STARRS1. Recorded once.
About NGC 6907
What you are looking at
NGC 6907 is a spiral of the same broad class astronomers give the Milky Way: a moderate bulge and clearly drawn arms. It is tilted about 38° 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 145,000 light-years, about 1.5 times the width of the Milky Way.
What astronomers have recorded
Four supernovae have been recorded in it, the first in 1984; the most recent include SN 2004bv, SN 2008fq, SN 2014eh. It is cited in 192 scientific papers indexed by SIMBAD, and recorded there under 19 different catalogue designations.
When this light set out
The light that reaches us from NGC 6907 today set out about 152 million years ago, when Pangaea had begun to break apart. The galaxy is moving away from us at about 3,178 km/s (7.1 million mph), carried by the expansion of the universe.
Finding it in the sky
NGC 6907 lies in Capricornus. It is best placed on autumn evenings: around 9:30 pm in September it stands about 25° 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: IC 5005 (1.0° away on the sky, at least 2,690,000 light-years from it); IC 4999 (1.2° away on the sky, at least 3,260,000 light-years from it).
By apparent size it is number 418 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 64650 |
|---|---|
| Morphological type | Sbc |
| Angular diameter | 3.30′ |
| Right ascension | 20h25m06.6s |
| Declination | -24°48′33.8″ |
| Constellation | Capricornus |
| Inclination | 37.5° |
| Light travel time | 152 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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