NGC/IC Project Restoration Effort

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NGC3513

 

Basic Information


Location and Magnitude


Right Ascension: 11:3:45.8
Declination: -23:14:39
Constellation: CRT
Visual Magnitude: 11.5

Historic Information


Discoverer: Herschel W.
Year of discovery: 1786
Discovery aperture: 18.7

Observational


Summary description: vF, vL, mE
Sub-type: SBb

Steve's Notes

===== NGC 3513 48" (4/18/15): at 488x and 610x; this superb barred spiral has a strong bright bar oriented northwest to southeast. It is brighter along a narrow spine and contains a slightly brighter stellar nucleus. A prominent spiral arm is attached to the bar at the southeast end and sweeps sharply to the north This well defined arm is relatively narrow and contains a small bright knot near the north end of the arm. A second arm arm is attached at the northwest end of the bar. This narrow arm shoots due south and rotates nearly 180¡ clockwise to the east on the south side of galaxy. It is slightly more separated from the central region than the northern arm and is patchy or knotty near the eastern end. Overall, the size is roughly 2.5'x2.0' extending northwest to southeast. A mag 15 star is 1.2' W of center, a mag 13 star is 1.7' E of center and a mag 17 star is just off the north side of the galaxy. 17.5" (4/1/95): fairly faint, moderately large, 2.5'x2.0', irregular surface brightness, only a slight central brightening. A mag 13.5 star is 1.7' E of center. A line of three equally spaced mag 11 stars lies about 4' S. Forms a pair with NGC 3511 10.8' NW.