NGC/IC Project Restoration Effort

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NGC5822

 

Basic Information


Location and Magnitude


Right Ascension: 15:4:2.3
Declination: -54:20:21
Constellation: LUP
Visual Magnitude: 6.5

Historic Information


Discoverer: Herschel J.
Year of discovery: 1836
Discovery aperture: 18.3

Observational


Summary description: Cl, vL, Ri lC, st 9…12
Sub-type: II1r

Steve's Notes

===== NGC 5822 22" (6/28/06 - Hawaii): overfills the 110x (22 Panoptic) field of 37'. Roughly 150 stars are resolved, most fairly similar in magnitude. Many of the stars are notably arranged in long sprays and curving loops. 18" (7/10/05 - Magellan Observatory, Australia): excellent open cluster at 76x (27 Panoptic). Appears very large, fairly rich, with the main body extended ~WNW-ESE and with dimensions ~40'x25' with roughly 150 stars resolved. The stars are fairly uniform in brightness (many mag 11 and 12) and convincingly arranged in loops and chains surrounded by voids. The outline is quite irregular but well defined by the star chains around the periphery. One chain detaches from the main group near the center and heads south and the outline tapers at the following end. Easy in 10x30 IS binoculars, 7¡ NE of Alpha Centauri. 8" (7/13/91 - Southern Baja): roughly 60 stars mag 9-12 resolved at 63x. Very large, 40' diameter, almost fills the low power field, elongated ~NW-SE. Spread out with no central condensation. Many stars have similar magnitudes. The stars forming the borders are arranged in rows and arcs with many empty gaps inside this outline. There is an extension of stars to the south.