This Tumblr’s Hubble week ends with the remnant of Supernova 1987A, photographed from 1994 to 2008 (at 656 or 658nm wavelengths).  In 2001, the ejecta from the supernova started colliding with the clumps of matter forming the smallest ring around the old star, causing the ring to get much brighter.  It’s interesting to watch it happen: some of those clumps must have been a little bit closer to the star than others, since the ring doesn’t all “light up” at once.
[Frames: Proposal ID 5203, 3 Feb 1994; Proposal ID 5753, 24 Sep 1994; Proposal ID 6020, 6 Feb 1996; Proposal ID 6437, 10 Jul 1997; Proposal ID 7434, 8 Jan 1999; Proposal ID 8243, 2 Feb 2000; Proposal ID 8648, 23 Mar 2001; Proposal ID 9114, 7 Dec 2001; Proposal ID 9114, 10 May 2002; Proposal ID 9428, 5 Jan 2003; Proposal ID 9992, 28 Nov 2003; Proposal ID 10263, 15 Dec 2004; Proposal ID 10549, 19 Nov 2005; Proposal ID 10867, 9 Dec 2006; Proposal ID 11181, 19 Feb 2008.]

This Tumblr’s Hubble week ends with the remnant of Supernova 1987A, photographed from 1994 to 2008 (at 656 or 658nm wavelengths).  In 2001, the ejecta from the supernova started colliding with the clumps of matter forming the smallest ring around the old star, causing the ring to get much brighter.  It’s interesting to watch it happen: some of those clumps must have been a little bit closer to the star than others, since the ring doesn’t all “light up” at once.

[Frames: Proposal ID 5203, 3 Feb 1994; Proposal ID 5753, 24 Sep 1994; Proposal ID 6020, 6 Feb 1996; Proposal ID 6437, 10 Jul 1997; Proposal ID 7434, 8 Jan 1999; Proposal ID 8243, 2 Feb 2000; Proposal ID 8648, 23 Mar 2001; Proposal ID 9114, 7 Dec 2001; Proposal ID 9114, 10 May 2002; Proposal ID 9428, 5 Jan 2003; Proposal ID 9992, 28 Nov 2003; Proposal ID 10263, 15 Dec 2004; Proposal ID 10549, 19 Nov 2005; Proposal ID 10867, 9 Dec 2006; Proposal ID 11181, 19 Feb 2008.]