NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC1135
Basic Information
Location and Magnitude
Right Ascension: 2:50:47.2
Declination: -54:55:46
Constellation: HOR
Visual Magnitude: 14.8
Historic Information
Discoverer: Herschel J.
Year of discovery: 1836
Discovery aperture: 18.3
Observational
Summary description: F, R, gbM
Sub-type: Scd
Corwin's Notes
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NGC 1135 = NGC 1136, and not ESO 154- G018 as Andris and I have it in ESO and
SGC. Glen Cozens has pointed out that E154-G018 would be one of JH's faintest
objects if he had seen it, and he would probably have called it "eF" instead
of just "F".
JH, in fact, has two observations of the galaxy. For the object that became
NGC 1135 (h2498) he writes, "F, R, gbM; taken for No. 3 sw 520, but proves, on
reduction, to be a different nebula"; this from Sweep 732 on 11 Sept 1836.
For h2499 (the "No. 3 sw 520" in the description just quoted), JH says only,
"F, R, gbM; [moon above the horizon]." (Sweep 520 is dated 5 December 1834).
Both observations refer to the brighter of the two objects (ESO 154- G019),
but the earlier observation has a 5 arcminute error in the north polar
distance. This led JH -- and Dreyer and Andris and myself and several others
-- to believe that he had two nebulae here, not just one.
Coincidentally, there are two nebulae in the field, but as with NGC 5440 and
NGC 5441 (which see), JH almost certainly saw only the brighter of them.
Steve's Notes
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NGC 1135
See observing notes for NGC 1136 with the 30" from Coonabarabran.