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Type: stars (three)
Mag: B=?, V=?
Size: ?
PA: ?
NGC 728 is probably the triple star about 1.5 arcmin north-northwest of JH's position. JH has only one observation of this object which he describes as "A suspected nebula." D'Arrest could not find this object, though he only looked for it once. On a night of relatively poor seeing, the three stars (with a maximum separation of about 20 arcsec, might appear nebulous.
A glance at the Sky Survey suggests that N728 might be a reobservation of NGC 718, about 2 minutes west of JH's place (the declinations are the same to within the errors). However, JH first observed N718 in the same sweep (No. 95) in which he found N728. So, the two are unlikely to be the same.
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads *** DC.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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