U 360
06:20 to 07:00
-28° to -39°
CMa, Col, Pup

THE SHIP, DOG & DOVE enclose this chart, which offers a sprinkling of clusters to the observer.

FEATURED OBJECTS: NGC 2298 (Ben 37), NGC 2243 (Ben 36a), ESO426-SC026, Ru 2, Ru 3.

NGC 2298
Bennett 37
ESO366-SC022, GCL-11
RA 06:48:59
Dec -36° 00.3'
Globular cluster

Dunlop 578: "a pretty bright round nebula, 3' or 4' diameter, moderately condensed to the centre. This is resolvable into stars."

h: "B, R, gpmbM, 3', all resolved into stars 14th mag. In the centre is a star 13th mag." On a second occassion he called it "globular cluster, pB, R, gbM, 90 arcseconds, resolved into stars 14th mag." His third observation was recorded as "B, irregularly round, gbM, 3', resolved into stars 14th..16th mag with stragglers, and some large stars near." The final record reads: "globular cluster, pB, irregularly round, gbM, 2.5', resolved into stars 13th mag."

Tom Lorenzin: “10M; 3' diameter; wait for clear, dark S sky to resolve individual stars.”

Steve Coe, observing with a 13” f/5.6, notes: “Pretty bright, pretty large, much brighter in the middle, 5 stars are resolved at 200X. This globular grows with averted vision. It was easy in the 11 X 80 finder.”

RA 06 48 59.2 (2000) Dec -36 00 19 Integrated V magnitude 9.29 Central surface brightness, V magnitudes per square arcsecond 18.79 Integrated spectral type F5 Central concentration, c = log(r_total/r_core); a 'c' denotes a core-collapsed cluster 1.28 Core radius in arcmin .34. [“Catalog Of Parameters For Milky Way Globular Clusters”, compiled by William E. Harris, McMaster University. (Revised: May 15, 1997; from http://www.physics.mcmaster.ca/Globular.html; Harris, W.E. 1996, AJ, 112, 1487) ]

11x80: This cluster is just visible as a faint, small patch. A friend, observing with 8x30's, couldn't pick it up. (suburban skies) [AS]

NGC 2243
Bennett 36a
Mel 46, Cr 98, Rb 36
RA 06:29:46
Dec -31° 16.0'
Open cluster

Dunlop 616: "an ill-defined faint nebulosity of some considerable extent, with several small stars scattered in it."

h: "pB, R, gbM, 4' diameter, mottled or resolved, amongst bright stars." On a second occassion he called it "pB, R, vglbM, all evidently resolved into stars, not very rich. Something between a cluster and a globular cluster."

Tom Lorenzin: “10M; 4' diameter; 70-plus faint members; small and very rich group with one 7M star (SAO 196879) off the NE edge.”

Large, faint and clean irregular open cluster, spacious, with mixed magnitude stars stretched towards the edges. To the north east stars look more fainter and closer together with a nice faint double to round it off. About 4 to 5 arc minute in size.

12-inch Meade, 40mm eyepiece, 53’ fov: Large, faint and clean irregular open cluster, spacious, with mixed magnitude stars stretched towards the edges. To the north east stars look more fainter and closer together with a nice faint double to round it off. About 4 to 5 arc minute in size. [MS]

ESO426-SC026

RA 06:36:18
Dec -30° 51.4'
Open cluster

Ru 2
ESO426-SC030
RA 06:41:01
Dec -29° 33.0'
Open cluster

Ru 3
ESO426-SC033
RA 06:42:05
Dec -29° 27.4'
Open cluster

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"Deepsky Observers Companion" (http://www.global.co.za/~auke) Copyright 1998 Auke Slotegraaf. All rights reserved. Uranometria 2000.0 copyright (c) 1987-1996 Willmann-Bell, Inc. Page last updated 1998 April 05