Matches in DBpedia 2014 for { <http://dbpedia.org/resource/NGC_7742> ?p ?o. }
Showing items 1 to 56 of
56
with 100 items per page.
- NGC_7742 abstract "NGC 7742 is a face-on unbarred spiral galaxy in the constellation Pegasus. The galaxy is unusual in that it contains a ring but no bar. Typically, bars are needed to produce a ring structure. The bars' gravitational forces move gas to the ends of the bars, where it forms into the rings seen in many barred spiral galaxies. In this galaxy, however, no bar is present, so this mechanism cannot be used to explain the formation of the ring. O. K. Sil'chenko and A. V. Moiseev proposed that the ring was formed partly as the result of a merger event in which a smaller gas-rich dwarf galaxy collided with NGC 7742. As evidence for this, they point to the unusually bright central region, the presence of highly-inclined central gas disk, and the presence of gas that is counterrotating (or rotating in the opposite direction) with respect to the stars.".
- NGC_7742 thumbnail Seyfert_Galaxy_NGC_7742.jpg?width=300.
- NGC_7742 wikiPageExternalLink opo9828a.html.
- NGC_7742 wikiPageID "206618".
- NGC_7742 wikiPageRevisionID "592645703".
- NGC_7742 appdimV "1.778".
- NGC_7742 appmagV "12.35".
- NGC_7742 caption "A Hubble Space Telescope image of NGC 7742.".
- NGC_7742 constell Pegasus_(constellation).
- NGC_7742 credit Association_of_Universities_for_Research_in_Astronomy.
- NGC_7742 credit European_Space_Agency.
- NGC_7742 credit NASA.
- NGC_7742 credit Space_Telescope_Science_Institute.
- NGC_7742 distErr "6.2".
- NGC_7742 epoch Epoch_(astronomy).
- NGC_7742 gDist "72.4".
- NGC_7742 galV "1809".
- NGC_7742 gvErr "6".
- NGC_7742 hRadialV "1663".
- NGC_7742 hasPhotoCollection NGC_7742.
- NGC_7742 hrvErr "1".
- NGC_7742 z "0.005547".
- NGC_7742 zErr "3.0E-6".
- NGC_7742 subject Category:NGC_objects.
- NGC_7742 subject Category:PGC_objects.
- NGC_7742 subject Category:Pegasus_(constellation).
- NGC_7742 subject Category:Spiral_galaxies.
- NGC_7742 subject Category:UGC_objects.
- NGC_7742 subject Category:Unbarred_spiral_galaxies.
- NGC_7742 comment "NGC 7742 is a face-on unbarred spiral galaxy in the constellation Pegasus. The galaxy is unusual in that it contains a ring but no bar. Typically, bars are needed to produce a ring structure. The bars' gravitational forces move gas to the ends of the bars, where it forms into the rings seen in many barred spiral galaxies. In this galaxy, however, no bar is present, so this mechanism cannot be used to explain the formation of the ring. O. K. Sil'chenko and A. V.".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "NGC 7742".
- NGC_7742 label "荷包蛋星系".
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs NGC_7742.
- NGC_7742 sameAs m.01d9zt.
- NGC_7742 sameAs Q741756.
- NGC_7742 sameAs Q741756.
- NGC_7742 wasDerivedFrom NGC_7742?oldid=592645703.
- NGC_7742 depiction Seyfert_Galaxy_NGC_7742.jpg.
- NGC_7742 isPrimaryTopicOf NGC_7742.