4145 4143
Uma
☀11.6mag
Ø 6.1' / 90''
Drawing Bertrand Laville

William Herschel discovered NGC 4144 = H II-747 = h1107 on 10 Apr 1788 (sweep 830) and recorded "pB, E, about 3' long, from np to sf about 15 or 20°." John Herschel made two observations, logging on 26 Apr 1830 (sweep 255), "F; vmE in pos 109° by meaure; vgvbM; 4' long, 30 or 40" br."

200/250mm - 8" faint, edge-on WNW-ESE.

400/500mm - 17.5" (4/7/89): fairly bright, very large, edge-on 5:1 WNW-ESE, 5'x1', bright core. Double star mag 13.5/13.5 at 8" separation is off the SE end 2.3' from center. Located between two mag 9 stars 8' N (double) and SAO 44057 7.7' SW. Member of the M94 Group (CVn I Cloud) or possibly the CVn II Group (brightest member M106).

Notes by Steve Gottlieb