CSN observing session at Dempsey on 12 Feb

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acc
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Favourite scope: Mag1 Instruments 12.5" Portaball

CSN observing session at Dempsey on 12 Feb

Post by acc »

Hi all
Wow, the second CSN activation for the year was met with a warm response! Well over 10 members turn up despite it being a working day the next day.

The session started at about 10pm following a CSN mobilisation at about 9pm. The sky was clear of storm clouds but there seems to be a thin layer of high level clouds. Nonetheless, by the time the session ended at about 1.30am, we had observed the following DSOs:
M36/37/38 faint, delicate but impressive open clusters nonetheless
M41
M42 hot favourite as usual.
M45 the seven sisters aka 'Subaru' in Japanese
M104 Sombrero galaxy
Jewel Box
Eta Carinae nebula
NGC3532
IC2931
Omega Centauri
In addition to Jupiter and Lord of the Rings (as Richard likes to call it) Saturn of course :)

Equipment:
Meade LX90
Meade ETX90RA
Meade ETX105EC
Celestron 8" SCT OTA on video tripod
Mag1 Instruments 8" Portaball
Skywatcher 127mm Maksutov

Hoping for more clear skies! :D

cheers
Chee Chien

p/s: for more info on CSN, visit http://sky21c.tripod.com/cosmos/id9.html
PM me ur name and hp number to join.
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chrisyeo
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Post by chrisyeo »

Can I ask about the NGC3532 and IC2931? I can't find them in my charts and catalogues. What are their positions and descriptions?

Regards,
Chris
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weixing
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Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster

Post by weixing »

Hi,
The below is the coordinate of NGC3532 and IC2931:
NGC3532 - RA: 11h 05m 47.5s and DEC: -58° 46' 13"
IC2931 - RA: 11h 33m 48.0s and DEC: +12° 28' 00"

Hope the above information is useful.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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harlequin2902
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Location: Singapore, Sengkang

Post by harlequin2902 »

NGC3532 is a very nice and very rich open cluster in Carina.

If you know where NGC 3372 (Eta Carina Nebula) is, it's quite easy to find as it's somewhere next to it. You should also be able to spot it with a pair of 50mm Binoculars.

Another way to find it is to imagine that the position it's in it forms an almost isosceles triangle with Delta Centauri and Alpha Crux as the 2 base points.

A third way of looking for it if you are scanning the area with your binoculars is to imagine a straight line between Delta Centauri and Beta Carinae. NGC3532 would be somewhere in the middle of this imaginery line.
Samuel Ng
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chrisyeo
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Post by chrisyeo »

Thanks Weixing and Sam,

I guess 3532 is the really large and fine cluster we saw in through the portaball. I love it! Can't wait to see whether I can see much in my etx.

I still can't locate IC2931 in any map though. Those coordinates put it in Leo. CC, did you mean IC2391 in Vela?

Chris
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acc
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Post by acc »

Hi Chris
My error, I can't figure out how 2931 slipped in there! :oops:
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