Southern Sentinel Observing Report
Friday 13th August 2004
|Date:||13 August to 14 August 2004 (Local)|
|Time:||21:00 - 04:00 NZST (UT +12)|
|Location:||Waharau Regional Park|
|75 Minutes from Home|
Occasional Cloud with mainly Clear Skies. Cold & Calm.
Limiting Magnitude 6.0, transparency 3/5, seeing 2/5
13.1 Inch Dobsonian, TeleVue Paracorr & Eyepieces & Lumicon Filters
Waharau Deep Sky Weekend has rolled around once again, as as usual attracted the usual observers. The weather scared a few people away but most of the hard core observers were going to see what transpired regarding the weather.
Cloud and showers had dominated the day and when Guy and I arrived at just after 7 PM, the skies were patchy and the telescope remained in the trailer for a few hours. The conditions improved and the cloud cleared at 9 PM. However the showers were back and forced most people to move their scope back under cover.
Most people called it a night at midnight, but fortunately for those who stayed up, the cloud cleared and stayed clear until 4 AM.
The objects observed were as follows;
|M 17||Bright Nebula||88x||Omega Nebula nice tonight. Cashew Nut dark nebula at the point of the '2' quite noticable and the nebulosity responded well to the filters. Fainter nebulosity off the end of the '2' looks like faint currents.|
|M 14||Globular Cluster||176x||Faintest Messier globular in Ophiuchus. Nicely resolved at the higher power but seeing is lousy.|
|M 12||Globular Cluster||88x||Small Messier globular cluster smaller and fainter than the nearby M10. Easy now to find without charts.|
|M 10||Globular Cluster||88x||Compact Messier globular. Learned now to locate this object plus the nearby M12 wihout charts now.|
|M 57||Planetary Nebula||114x||Contrasty view of the Ring. Seeing does not allow higher power views.|
|M 15||Globular Cluster||176x||Messier globular. Bright and well resolved. Compact core possibly a Type 3.|
|NGC 253||Galaxy||114x||Excellent irregular detail in the Sculptor Galaxy tonight. Beautifully framed in the 17mm Nagler.|
|NGC 1404||Galaxy||114x||One of two bright elliptical companions in the heart of the Fornax / Eridanus cluster. With NGC 1399 this pair is the brightest of the main group in the cluster. NGC 1404 is smaller that NGC 1399 and has bright stars interacting with the outer halo giving the impression of a supernova. It clearly is not a supernova as a DSS image shows the star present.|
|NGC 1399||Galaxy||114x||One of two bright elliptical companions in the heart of the Fornax / Eridanus cluster. With NGC 1404 this pair is the brightest of the main group in the cluster. NGC 1399 is larger and brighter than NGC 1404.|
|NGC 1389||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Eridanus and logged without detailed description.|
|NGC 1387||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1386||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Eridanus and logged without detailed description.|
|NGC 1381||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1380||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1379||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1375||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1374||Galaxy||114x||Fornax / Eridanus galactic cluster member. Object in Fornax and logged without detailed description.|
|NGC 1365||Galaxy||114x||The Great Spiral galaxy. Nice views but difficult to determine arm detail. Suspected but not confirmed at all. Bar across galaxy is strong. More detail in Dave's 16 Inch.|
|NGC 1317||Galaxy||114x||Small round elliptical companion of NGC 1316. Easy pair.|
|NGC 1316||Galaxy||114x||Bright Elliptical galaxy in the Fornax / Eridanus cluster. Possibly the brightest member. 2 1/2 degrees to the west of the Great Spiral and the main cluster.|
|NGC 1300||Galaxy||114x||Face on spiral galaxy. Bar is strong and there is a hint of spiral arms. Dave B actually missed this object so unable to compare in the 16 Inch.|
|NGC 1097||Galaxy||114x||Fornax Spiral Galaxy. Detail hard to see but a bar is notiable but no detail in the arms.|
|NGC 1688||Galaxy||114x||Faintish galaxy with a evenly bright halo and a small core.|
|NGC 1672||Galaxy||114x||Galaxy with a strong bar which is elongated with a Cashew Nut curve on the end. Arms are diffcult to detect. Bright and conspicious.|
|NGC 1617||Galaxy||114x||Small oval shaped galaxy, fairly bright with an even brightness. Conspicious and half a degree from bright Mag 3.3 Alpha Doradus.|
|NGC 1566||Galaxy||114x||Oval looking galaxy with stubby spiral arms. More intense observation needed on this object.|
|NGC 1559||Galaxy||114x||Small oval shaped galaxy, fairly bright with an even brightness. Conspicious and half a degree from bright Mag 3.3 Alpha Reticulum.|
|NGC 1553||Galaxy||114x||Bright galactic elliptical pair in Dorado. Both round and similar size but NGC 1553 is a fraction brighter.|
|NGC 1549||Galaxy||114x||Bright galactic elliptical pair in Dorado. Both round and similar size but NGC 1553 is a fraction brighter.|
|NGC 1543||Galaxy||114x||Lenticular looking galaxy. Even in brightness with stubby wings and a large bulge. Easy to locate.|
|NGC 1515||Galaxy||114x||Long skinny galaxy with an even brightness.|
|NGC 1313||Galaxy||114x||Large hazy galaxy with a weak central bar but arms are noticable. Arms make a 'Z' shape. A higher power study of this object is needed under better conditions.|
|M 79||Globular Cluster||114x||Bright Messier globular not seen in a while. A compact core gives the impression that the glob is a Type IV.|
A good four hours observering was highlighted with a look at some brighter objects, a good look at the Eridanus / Fornax cluster and a good look at some galaxies in the Reticulum / Dorado region. Some spirals observered were interesting including NGC 1097, NGC 1365, NGC 1672 & NGC 1313.
Seeing was pretty bad so I limited the observing to 114x (Nagler 17mm).
The second night was cloudy and rain set in so we left early.
|Auckland, New Zealand|
|36° 55' 09 " South, 174° 43' 30" East|
|-- The Southern Sentinel --|