NGC 1531 NGC 1337
Eri
☀11.9mag
Ø 3.6' / 1.7'

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200/250mm - 8" (11/28/81): faint, small.

300/350mm - 13.1" (10/10/86): moderately bright, elongated NW-SE, fairly small, bright core, faint elongated halo.

400/500mm - 17.5" (11/2/91): moderately bright, moderately large. Contains a bright core with a bright almost stellar nucleus and a much fainter halo elongated 2:1 NW-SE. A mag 11 star is 2.7' NNW of center. Forms a wide pair with NGC 1416 9' S. Located 8.5' ESE of mag 8.6 SAO 168726.