NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4554
Basic Information
Location and Magnitude
Right Ascension: 12:35:59.5
Declination: +11:15:55
Constellation: VIR
Visual Magnitude:
Historic Information
Discoverer: Tempel
Year of discovery: 1882
Discovery aperture: 11.0
Observational
Summary description: vF
Sub-type: *2
Corwin's Notes
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NGC 4554 is another of Tempel's lost nebulae. He has only a brief note about
it in his fifth paper, calling it a very faint nebula 50 seconds preceding,
2.5 arcmin south of NGC 4567/8. This position is in the middle of an
extraordinarily empty field with nothing brighter than 19th magnitude for 2-3
arcmin in all directions.
Checking the signs of Tempel's offsets turned up nothing that matched in any
of the other three possible positions. There is a double star (noted in the
position table) that might be his object. It has a faint double galaxy about
an arcmin to the northwest, and an even fainter double star a bit further away
to the southeast -- these may have enhanced a nebulous appearance a bit.
However, adopting the brighter double as Tempel's object would require not
only changing the sign of the declination offset, but its size and the size
of the RA offset as well. So, I doubt very much that the double is Tempel's
intended object.
Until Tempel's original observing records can be examined for possible errors,
this object will have to remain "lost."