NGC/IC Project Restoration Effort

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NGC7245

 

Basic Information


Location and Magnitude


Right Ascension: 22:15:12.0
Declination: +54:20:36
Constellation: LAC
Visual Magnitude: 9.2

Historic Information


Discoverer: Herschel W.
Year of discovery: 1787
Discovery aperture: 18.7

Observational


Summary description: Cl, C, st eS
Sub-type: II1p

Corwin's Notes

===== NGC 7245. Pulling this cluster up on the DSS, I wondered at first if the somewhat richer, but more distant cluster, King 9, at 22 15 29.9, +54 24 36 (J2000.0) might have been seen by one of the Herschels. However, their positions make it clear that they both saw the same, nearer, poorer cluster: both positions are within an arcminute of the center as I see it on the DSS.

Steve's Notes

===== NGC 7245 18" (8/27/05): small, rich group at 323x with at least three dozen stars resolved within the borders of an isosceles triangle (long sides ~4') formed by a mag 8.9 star (HD 235771) at the NE corner and two mag 10.7/10.9 stars on the west and south sides. Contains a rich, 1' ball of stars that follows the brighter star on the west side. King 9 is close northeast. At 323x, this rich, distant cluster appeared as a very small, faint knot of stars is just south of a mag 13.5-14 stars. Perhaps a half-dozen stars were resolved, though these may be superimposed field stars as the brightest cluster members are ~16.5. 17.5" (8/5/94): about two dozen stars in a 2.5' diameter bordered by a mag 11 star on the west edge, a mag 10 star on the SSE edge and a mag 9 star (SAO 34240) off the NE side. A small 1' diameter core is richer. A large dust lane appears to cut through the 20' field SW-NE and passes the east side of cluster. At low power other dark patches are evident. Open cluster IC 1442 is in the low power field 20' SE. 13.1" (9/9/83): about 20 fainter stars mostly in a string. Other rich enhancements are near in this Milky Way field. 8": 15 faint stars elongated N-S with a double star at the north edge. Includes three brighter stars mag 8-10 around the edges but the rest of the stars are mag 13 or fainter.