An expanding bubble of gas from the binary system XZ Tauri, 1995-2002, at 675nm wavelength (i.e., red light).  These are raw frames screenshotted from the Hubble Legacy Archive viewer; the linked Wikipedia article shows part of the sequence after a lot of processing (using point-spread functions and so forth – the stars are much smaller than the big white circle in the gif that I’ve shown).  Probably worth a look.
Frames: 5 Jan 1995 (Proposal ID 5768), 25 March 1998 (Proposal ID 6855), 1 December 1998 (Proposal ID 6754), 3 February 1999 (Proposal ID 8289), 6 February 2000 (Proposal ID 8289), 10 February 2001 (Proposal ID 8771), 12 February 2002 (Proposal ID 9236).

An expanding bubble of gas from the binary system XZ Tauri, 1995-2002, at 675nm wavelength (i.e., red light).  These are raw frames screenshotted from the Hubble Legacy Archive viewer; the linked Wikipedia article shows part of the sequence after a lot of processing (using point-spread functions and so forth – the stars are much smaller than the big white circle in the gif that I’ve shown).  Probably worth a look.

Frames: 5 Jan 1995 (Proposal ID 5768), 25 March 1998 (Proposal ID 6855), 1 December 1998 (Proposal ID 6754), 3 February 1999 (Proposal ID 8289), 6 February 2000 (Proposal ID 8289), 10 February 2001 (Proposal ID 8771), 12 February 2002 (Proposal ID 9236).