IC 143 NGC 804
Tri
☀13.7mag
Ø 66'' / 60''

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John Herschel discovered NGC 1067 = h261 on 22 Nov 1827 and reported "eF; S; the nf of two [with NGC 1066]. Change in polar distance estimated at 3'." The actual separation is 2.2'.

400/500mm - 17.5" (11/27/92): very faint, very small, round, low surface brightness. Forms a close pair with NGC 1066 2.2' S in the NGC 1060 group. UGC 2201 (misidentified in the RNGC and RC3 as NGC 1062) is 1.6' SW and was not seen.

600/800mm - 24" (9/23/17): at 260x; faint, fairly small, round, low surface brightness, 30-35" diameter. SN 2017gjn (Type 1a), discovered 1' NNW of center on 24 August, was visible as a mag 15.5 "star".

24" (2/7/16): fairly faint, fairly small, roundish, low surface brightness with a broad weak concentration [face-on Sc]. In a small trio with NGC 1066 2.2' S and UGC 2201 1.7' SW. Situated 8' NE of NGC 1060 (brightest in the cluster) and 6.7' NNW of mag 7.4 HD 16954.

Notes by Steve Gottlieb