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Type: bright nebula (HII region)
Mag: B=?, V=?
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NGC 2736. On the SERC IIIa-J film, this appears to be the brightest patch in a supernova remnant that covers most of the 6.4 deg field with delicate whisps of nebulosity. On the ESO IIIa-F film, however, it is much brighter than the rest of the SNr, and I wonder if the relatively bright star immersed in it is exciting it as it passes by. In either case, it is certainly a diffuse gaseous nebula, not a galaxy.
Streak Nebula - Shapley, H. & Paraskevopoulos, J.S. (1940), p35.
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "eeF, L, vvmE; an extraordinarily long narrow ray of excessively feeble light, position 19 degrees approx. The N.f. end is brighter and narrower than the S.p. At least 20' long, extending much beyond the limits of the field. A star 8th mag, and one about 8th mag, near it. See Plate V, fig. 12."
Recorded in "Observations of the Southern Nebulae made with the Great Melbourne Telescope".
See the discussion of Lithograph M.4.34 for the details.
Galactic and Extragalactic Studies, III. Photographs of thirty southern nebulae and clusters. Proc. N.A.S., 26, 31-36.
p 35; name suggested for NGC 2736.
The RNGC (Sulentic and Tifft 1973) notes that this is a galaxy.
QBS: part of Gum nebula.
15cm - remarkably exlong exthin emis neb. 80x + UHC shows it 25' long and 1'.5 wide in pa25. rel sharp border on E-facing flank, smooth fading on W. lies W of m8 *. BS, 24Feb1990, LCO.
12-inch f/10 SCT (218x 346x)
The use of the 0III filter brings out this object to its full. The streak of light is surprising quite straight in a north-north-east to south-south-west direction. The north-eastern side is much more defining with a softer washed out south-western. The northern field of view is much busier with brighter stars.
The Messier objects
The Bennett objects
The Caldwell list
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