5235 5233
Cen
☀13.0mag
Ø 78'' / 48''

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ESO 220-023 (similar redshift) lies 5.6' NNW. This fairly faint edge-on extends 4:1 SW-NE, 0.6'x0.15', slight bulge at center, tapers at ends. Collinear with two mag 12.2 and 10.5 stars situated 1.2' SE and 1.9' SE. It also forms the eastern vertex of a triangle with two mag 10.5 stars 2.5' WNW and 3' SW. Two more ESO edge-ons (again part of the same group) lies 10' SW of NGC 5234 but I didn't look for these.

John Herschel discovered NGC 5234 = h3522 on 6 Jul 1834 and recorded "eeF; lE; 30". Requires a newly polished mirror, and a night such as this is to be seen." His position is accurate.

400/500mm - 18" (4/4/16 - Coonabarabran, 236x): fairly faint, fairly small, elongated 2:1 SW-NE, 40"x20", contains a small brighter core. A mag 14-14.5 star is at the southeast edge [20" from center] and a mag 15 star is just off the northeast end. Situated in a rich star field with two mag 10.5 stars 4' N and 5' NW. Located 25' WNW of mag 5.9 HD 118767.

Notes by Steve Gottlieb