C/2012 S1 ISON
Posted 02 March 2013 - 06:30 PM
Posted 10 March 2013 - 03:23 AM
There was a clear night here, finally, and I managed to
image the comet. Attached is 5 X 3 minutes at ISO 800.
The object marked at mag 17.5 is a galaxy. The comet is
still over 4 AU from the earth and the sun and is moving
at around 19 arcsec / hour.
Posted 10 March 2013 - 03:27 AM
this image stack I used the comet versus the stars. The
tail seems quite broad to me with a well defined nucleus.
Posted 10 March 2013 - 06:23 PM
Posted 14 March 2013 - 04:31 AM
Posted 14 March 2013 - 10:41 AM
Posted 14 March 2013 - 04:30 PM
Posted 14 March 2013 - 05:04 PM
Posted 18 March 2013 - 02:15 AM
Posted 18 March 2013 - 08:54 AM
For objects like Comet ISON, what is actually seen and the degree of spectacle presented is often highly dependent of the clarity and sky darkness enjoyed by the observers...especially once the comet is a couple of weeks, or more, past perihelion and finally well placed in the sky.
Posted 31 March 2013 - 03:04 AM
C/2012 S1 (ISON) on March 11, 2013UTC.
The tail looks to be a little longer compared to my last image in February 10th. above with the same small imaging train and in the same scale. North is up. Here is the original.
Posted 01 April 2013 - 10:14 PM
Posted 02 April 2013 - 12:00 PM
Posted 03 April 2013 - 12:57 PM
fuzz ball and posting your images.
Posted 26 April 2013 - 03:30 PM
I too have been following this comet and here are my imaging efforts (not intended for photometry) over the last few months. However, I don't think I'll get many more, since my house will be in the way soon.
Posted 28 April 2013 - 09:57 PM
Posted 29 April 2013 - 08:24 AM
I would point out that more "healthy" comets are often considerably brighter when reaching ISON's current solar distance. Comet Hale-Bopp was even visible with just ordinary binoculars by this time. Likewise, the ultimate brightness for ISON continues to be scaled back, with the comet now anticipated to likely be brighter than 2nd magnitude only for a few days either side of perihelion (when visible only in very bright twilight).
Posted 29 April 2013 - 08:41 AM
Posted 29 April 2013 - 09:09 AM
PanSTARRS and ISON appear to share a high degree of dust production while still quite some distance from the Sun. However, ISON seems to be intrinsically only about 1/5 the brightness of PanSTARRS. The combination is not particularly indicative of a comet with great prospects, I'm afraid.