NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC2548

 

Basic Information


Location and Magnitude


Right Ascension: 8:13:43.1
Declination: -5:45:2
Constellation: HYA
Visual Magnitude: 5.8

Historic Information


Discoverer: Messier
Year of discovery: 1771
Discovery aperture: 3.5

Observational


Summary description: Cl, vL, pRi, pmC, st 9…13
Sub-type: I2m

Steve's Notes

===== NGC 2548 18" (3/15/10): large, sprawling cluster that nearly fills the 67' field of the 31mm Nagler. The most distinctive portion, though, is a 20'x15' group near the center which contains roughly 75 stars, many arranged in strings. Most prominent is a fairly dense SW-NE string of brighter stars that cuts through the cluster with a nice double star in the center (h 2435 = 9.6/9.7 at 7"). A short chain of a few stars branches off to the south of h2435. Another stream of stars branches off this string to the SSW. A third elongated group of stars extends SW-NE on the south side, roughly parallel to main string, and is separated by a mostly starless lane. The cluster includes a number of mag 8-9 stars, with the brightest mag 8.2. At 73x, the main cluster is wedged between two very long streams of stars, roughly oriented NW to SE off both the north and south sides of the main group. These two strings of stars extend the total diameter to over 50'. On the NW side of the central group, a number of stars are scattered between these two streams including a few very wide pairs, but the SE end the two streams are well separated with a very few stars in between. 13.1" (2/16/85): about 125 stars in a large 40' field with no distinct borders. A rich chain of stars oriented SSW-NNE passes through the center. Includes a number of brighter mag 10 stars and many double stars. Partially resolved in 16x80 finder.