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C/2012 K5 Linear

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Time of observation
22/02/2013 - 20:08
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ccd image and observation
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C/2012 K5 Linear

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Time of observation
22/02/2013 - 20:08
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ccd image and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
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Aurora Images from Iceland by Dennis Boon

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Dennis Boon
Time of observation
19/02/2013 - 21:55
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Date/time of observation: 15/02/2013 UT 10.45Location: Pingvellir IcelandEquipment used: Canon 5D Mk2, 17mm F4Exposure details: 10sec @ 3200ISO
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
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Aurora Images from Iceland by Dennis Boon

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Dennis Boon
Time of observation
19/02/2013 - 21:55
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Date/time of observation: 13/02/2013 UT 03.45Location: Lake Myvatn Northern IcelandEquipment used: Canon 5D Mk2, 17mm F4Exposure details: 10sec @ 3200ISO
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
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Aurora Images from Iceland by Dennis Boon

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Dennis Boon
Time of observation
19/02/2013 - 21:55
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Date/time of observation: 11/02/2013 UT 20.45Location: Lake Myvatn Northern IcelandEquipment used: Canon 5D Mk2, 17mm F4Exposure details: 10sec @ 3200ISO
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
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Aurora Images from Iceland by Dennis Boon

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Dennis Boon
Time of observation
19/02/2013 - 21:55
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Date/time of observation: 13/02/2013 UT 03.30Location: Lake Myvatn Northern IcelandEquipment used: Canon 5D Mk2, 17mm F4Exposure details: 10sec @ 3200ISO
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
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Two images of NEO-2012-DA14

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Ian Sharp
Time of observation
17/02/2013 - 21:43
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We received two separate images of the passage of NEO-2012-DA14. The first here is one of two which were submitted by Ian Sharp, and the location and time stamp are on the image. together with exposure time. The image was taken using a TS 130mm APO at F/7 with an ATIK 383L and Baader L filter. The second was submitted by David Briggs, who was at the Hampshire Astronomical Group's observatory at Clanfield, Hampshire. The image was taken using the group's 24" telescope about 13 minutes after the asteroid rose above the horizon in the UK on the 15th February. It is a 30 second exposure and was taken at 20:06 when the asteroid was only about 10 degrees above the horizon. The FOV is approximately 0.5deg on a side.
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Articles

2012 DA14 live webcast

Weather permitting we are going to try to do a live webcast of the 2012 DA14 close approach tonight. This will consist of periodically updated live images from a small telescope with a field of view of around 1 degree. We’ve not had much time to test this so it may or may not work for various reasons but you might like to keep an eye on the following page:

http://britastro.org/live/page.htm

If the weather cooperates the first live images should appear around 20:10 as the object rises above my local horizon. At that time it will be around magnitude 7.5 and moving at around 41 arcsec/sec.

19:15 – Currently the sky here in Chelmsford is totally cloud covered and so the live webcast is unlikely to show much early on. The forecast for later this evening is a bit better.

20:15 – 2012 DA14 is now clear of my horizon obstructions but it is still cloudy here. It may clear later.

22:10 – Still cloudy in Essex but Denis Buczynski has obtained a nice image from Tarbatness.

2012 DA14 from NE Scotland

Unfortunately, the sky never cleared in Chelmsford so we had nothing to show during the webcast. We’ll try again in the future when another interesting astronomical event takes place.

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Friday’s close approach of asteroid 2012 DA14

We are now just a few days away from the dramatic passage of this near-Earth asteroid, which takes place on 2013 February 15 approaching to within 27,700 km of the Earth’s surface at about 19:24 UT on that day whilst travelling at 7.8 km/sec. During the last week many more observatories have imaged the object, in particular; Mount John Observatory, New Zealand (MPC Code 474); the 2.0-m Faulkes Telescope South (which is now back in business after last month’s devastating bushfires which badly affected Siding Spring and the surrounding community) (MPC Code E10); as well as the new LCOGT 1.0-m ‘B’ telescope at Cerro Tololo, Chile (MPC Code W86).

Reaching 7th magnitude, it will be the brightest-ever NEO to be observed approaching the vicinity of our planet (<0.1 AU) and will be visible with modest telescopic aid, e.g. binoculars. 2012 DA14 will pass about 10x closer to the Earth than our companion Moon. To put this in perspective, scientists at NASA’s Near-Earth Object Program Office in Pasadena, California estimate that an asteroid the size of 2012 DA14 flies this close every 40 years on average and that one will impact Earth, on average, about once in every 1,200 years!

Depending on your location, you are advised to obtain your local topocentric RA and Dec coordinates from websites such as can be found at:

Minor Planet Center ephemeris service

HORIZONS Web-Interface

NEODyS-2

 You will need to enter either your latitude and longitude, or the MPC Code of a nearby observatory.

I have prepared a chart for the interval 19:50-21:00 UT in anticipation of the object’s visibility soon after it rises near the eastern horizon as seen from the southern UK. A second chart covers the later period, 21:00-01:00 UT on the evening of Feb 15/16. Full observing details and a 5-minute ephemerides for UK observers are also available here. The charts are probably usable by all UK observers since the object will be conspicuous owing to the fact that it will be seen to be moving in real time. Look with binoculars or a small telescope within a degree or so of the predicted position at any given time and it should ‘jump out’ as a moving star.

The weather forecast for most of the UK is not especially favourable owing to excessive cloud but watch out for gaps which may appear especially in the Norfolk area. Observers located in north-east Scotland may be best-placed weather-wise. Currently southern Spain is predicted to have clearest skies in Europe for this event. Further weather updates will be provided.

NASA have set up a very informative webpage with useful FAQs, orbit diagrams and some videos of interviews, etc.

Richard Miles  (Director, Asteroids and Remote Planets Section)

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Aurora and Fireball by John Mason

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Observer
John Mason
Time of observation
10/02/2013 - 08:45
Object
Aurora and Fireball
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While out observing the aurora on the evening of 8th February, Dr Mason reports that he was lucky enough to capturea mag -7 fireball as it dropped down towards the auroral curtain.The picture was taken at 2124 UT from a ship off the Norwegian coast between Rorvik and Bronnoysund. Canon 550D, 10 mm f/2.8 Sigma fisheye, 3200 ISO, 10 second exposure.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.

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