Pyramid of Venus

Click to enlarge

Photograph by Tunc Tezel, TWAN

The path of Venus seems to stitch together the sky over Bolu, Turkey, in a recently released composite picture spanning seven months. The interval between each frame ranges from 4 to 11 days.

Because it orbits closer to the sun, Venus overtakes Earth every 584 days. This means that, over time, the bright planet changes from the "evening star," visible after sunset, to the "morning star," visible before sunrise.

Published October 13, 2010

Source:  National Geographic

Rover nears 24 km of driving on Mars

 MERB total odometry now reads in excess of 23,991.43 meters (23.99 kilometers, or 14.91 miles).

Source: MarsDaily

by Staff WritersPasadena CA (JPL) Oct 15, 2010 Opportunity drove only once this past week, nearing the 24-kilometer (15-mile) odometry mark.

On Sol 2382 (Oct. 6, 2010), the rover covered over 94 meters (308 feet) on her trek to Endeavour crater. With the use of autonomous navigation, the rover collects many more data products which fill the available flash memory.

More info

For First Time Ever, Asteroid Collision Photographed

Astronomers now have the first confirmed snapshots of what appears to be the aftermath of an asteroid collision in space.

When scientists first discovered the object dubbed P/2010 A2 in the asteroid belt in January using the Rosetta spacecraft, the fact that it trailed a tail made them think it was a comet. A closer look, however, suggested it was something more peculiar -- images from the Hubble Space Telescope revealed it had a bizarre X-shape nucleus, for instance. [Photo of the odd X-shape in space.]

More info

Astronomer captures asteroid's close pass

 Click here for movie. Credit: Patrick Wiggins, NASA/JPL Solar System Ambassador to Utah.

Amateur astronomer Patrick Wiggins from Utah captured impressive images of asteroid 2010 TD54 that passed the Earth with just 46,000 kilometres to spare on Tuesday. 

The asteroid, estimated to be around seven metres in diameter, was discovered on 9 October by the Catalina Sky Survey in Arizona as part of routine monitoring of the skies. 

• Read more...

Sky & Telescope's Pocket Sky Atlas

Astronomy:  Observation help

A must for every amateur astronomer.

Sky & Telescope developed this atlas for the amateur astronomer. 

Sky & Telescope's Pocket Sky Atlas by Roger W. Sinnott (c) 2006 Sky Publishing Corporation, Cambridge, Mass, USA. ISBN 1-931559-31-7

• Full review in Cloudy Nights Telescope Reviews

Summary

Pros:

• Small and light, easy to hold with one hand while observing. (16 X 23 cm)
• Printed on thick heavy stock with smooth, glare-free finish.
• Generous amounts of overlap between adjacent charts.
• Easy to lay flat or fold back on itself.
• Charts are well thought out and well laid out.
• Green stick figures of constellations provide additional context for individual charts.
• Chart key is easy to find on inside of back cover.
• Commonly used information (chart key and legend) is repeated at regular intervals.
• Close up charts show further detail in areas of particular interest to amateurs.
• Excellent for starhopping in light polluted skies
• Vir die Noordelike halfrond ontwerp - Alles omgekeer in die Suide, maar steeds `n winskoop. (Hannes)

Cons:

• Not sure of durability after repeated exposure to dew
• May not have enough detail for effective starhopping under dark rural skies

Available from local online suppliers

Loot  (R142 + R22 delivery)  (Goedkoopste!)

Take Two (R142 + delivery cost)

Kalahari.net (R176.76 + delivery cost)

Also from Sky & Telescope  $19 +  $9.99 delivery cost)

or Amazon  $13.57  +  delivery cost)

Small Asteroid to Pass Within Earth-Moon System Tuesday

A newly-discovered car-sized asteroid will fly past Earth early Tuesday. The asteroid, 2010 TD54, will make its closest approach to Earth at 6:51 EDT a.m. (3:51 a.m. PDT). Image credit: NASA/JPL 

October 11, 2010

PASADENA, Calif. -- A small asteroid will fly past Earth early Tuesday within the Earth-moon system. The asteroid, 2010 TD54, will have its closest approach to Earth's surface at an altitude of about 45,000 kilometers (27,960 miles) at 6:50 EDT a.m. (3:50 a.m. PDT). At that time, the asteroid will be over southeastern Asia in the vicinity of Singapore. During its flyby, Asteroid 2010 TD54 has zero probability of impacting Earth. A telescope of the NASA-sponsored Catalina Sky Survey north of Tucson, Arizona discovered 2010 TD54 on Oct. 9 at (12:55 a.m. PDT) during routine monitoring of the skies.

2010 TD54 is estimated to be about 5 to 10 meters (16 to 33 feet) wide. Due to its small size, the asteroid would require a telescope of moderate size to be viewed. A five-meter-sized near-Earth asteroid from the undiscovered population of about 30 million would be expected to pass daily within a lunar distance, and one might strike Earth's atmosphere about every 2 years on average. If an asteroid of the size of 2010 TD54 were to enter Earth's atmosphere, it would be expected to burn up high in the atmosphere and cause no damage to Earth's surface.
More info on car-sized asteroid

Russian manned spacecraft docks with ISS

A newly-modernized Russian Soyuz spacecraft (pictured before launch) carrying three astronauts on Sunday docked with the International Space Station (ISS) to double its crew to six, mission control said. The Soyuz TMA-M spacecraft is a modernised version of the ship used by Russia to put humans into the space and the first of a new series to have fully digital systems.

• More information

Comet 103P/Hartley 2 on its way

Comet Hartley 2 near the double cluster in Perseus at oct. 8, UT 22.00, taken with Newton 5,6"/f-2.9 

Comet 103P/Hartley 2 continues to put on a good show as it approaches Earth for an 11-million-mile close encounter on Oct. 20th. Last night (8 October) it passed by the Double Cluster in Perseus. The contrast between the blue stars of the two clusters and the green atmosphere of the comet was remarkable.

• Get ready for naked-eye comet
  
  
• Comet Chasing in October
  
  
• Hier in die Vrystaat is dit teen 02:00 die oggend so 6 grade bo die horison sigbaar. Feitlik reg Noord. Dit is nou volgens my Skytools sagteware.
  
  Het iemand hom al gesien? Laat weet gerus.

ISS - Visible Passes over Bloemfontein

Source: Heavens-Above

Search period start:	00:00 Sunday, 10 October, 2010
Search period end:	00:00 Wednesday, 20 October, 2010
Observer's location:	Bloemfontein, 29.1022°S, 26.2110°E
Local time zone:	South African Standard Time (UTC + 2:00)
Orbit:	348 x 359 km, 51.6° (Epoch Oct 10)

Click on the date to get a star chart and other pass details.

Date	Mag	Starts			Max. altitude			Ends
		Time	Alt.	Az.	Time	Alt.	Az.	Time	Alt.	Az.
12 Oct	-2.1	19:43:56	10	SSW	19:46:08	26	SSE	19:46:08	26	SSE
13 Oct	-0.9	18:37:34	10	SSE	18:37:44	10	SE	18:37:54	10	SE
13 Oct	-1.6	20:10:23	10	SW	20:12:12	31	WSW	20:12:12	31	WSW
14 Oct	-2.6	19:01:54	10	SSW	19:04:41	33	SE	19:06:42	15	ENE
15 Oct	-2.5	19:28:25	10	WSW	19:31:17	42	NW	19:32:54	21	NNE
17 Oct	-2.0	18:46:20	10	WSW	18:49:07	34	NW	18:51:51	10	NNE

Star charts for the Southern Hemisphere

Astronomy observation help

Hier is `n ideale begin vir amateur sterrekundiges wat nog nie sterkaarte aangeskaf het nie.
Jy kry die 18 gelamineerde sterkaarte in kleur. (A4-grootte en in JPG- en Pdf-formaat). Ook `n CD met al die kaarte en `n klomp NASA-foto's).   (Hannes Pieterse)

• Bestel dit by die Johannesburg Planetarium. Inligting onder.

STAR CHARTS - 18 printed charts plus CD.



A series of 18 maps (nine double-sided A4 pages) +CD covering the entire sky and showing the positions of star clusters, nebulae, galaxies and double and variable stars. The constellation lis are the same as those on the Star Disc (see below) to make identification easier. The charts have a southern hemisphere orientation (with south at the top) and have a water resistant laminate coat to make them more durable when used outside. An additional reference guide provides an overall view of all 18 charts, plus instructions about their use and an index to the constellations and major stars. Charts by Wil Tirion.

• Astrovisuals Australia  developde the charts for the Southern Hemisphere.

CD contains JPEG and PDF files of all charts with both southern and northern hemisphere orientation, additional Star Maps, reference guides, indexes, and 300 bonus NASA images.
 
Send email to Johannesburg Planetarium: planet@planetarium.co.za and the Banking details will be send to you.
 
The cost is R174 + R25 postage (Registered with trace number)
 

• I ordered on a Thursday and it was delivered on Tuesday. How is that for service. Claire Flanegan from the Planetarium will see that you get your charts and the CD asap.