NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC7021
Basic Information
Location and Magnitude
Right Ascension: 21:11:19.9
Declination: -64:1:31
Constellation: PAV
Visual Magnitude: 11.8
Historic Information
Discoverer: Herschel J.
Year of discovery: 1835
Discovery aperture: 18.3
Observational
Summary description: pF, cS, R, psbM, * 7ยท8 p
Sub-type: SB0
Corwin's Notes
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NGC 7021 = NGC 7020. JH has made a simple error of 30 arcmin in his NPD in
CGH. Once that is corrected, the identity is clinched by the bright star
about 10 arcmin preceding the galaxy. In his observation of N7021 (in an
earlier sweep than the one in which he found N7020), JH notes "... has a *
7.8m 10 arcmin prec, exactly in the parallel."
Both Stewart and Frost noticed on Harvard plates taken at Arequipa that NGC
7021 was not in its position, but neither apparently made the connection with
NGC 7020. Both SGC and ESO identify the correct galaxy, however.
The galaxy itself is one of the most strangely beautiful ringed galaxies in
the sky. A complete, though faint, outer ring encloses a hexagonal inner ring
which is connected by "spokes" to a peculiar quasi-barlike inner structure.
The inner ring also has bright knots at the end intersections of the hexagonal
segments where ansae or nubs would be found in a normal early-type barred and
ringed galaxy. See Ron Buta's comments about this galaxy in "The de
Vaucouleurs Atlas of Galaxies" for more information.
Steve's Notes
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NGC 7021
See observing notes for NGC 7020.