Full record: 2001
Description: Traveling at high velocity along an extreme hyperbolic orbit and making a hairpin turn as it swung past the Sun, the now designated A/2017 U1 is the first known small body from interstellar space. A point of light centered in this 5 minute exposure recorded with the William Herschel Telescope in the Canary Islands on October 28, the interstellar visitor is asteroid-like with no signs of cometary activity. Faint background stars appear streaked because the massive 4.2 meter diameter telescope is tracking the rapidly moving A/2017 U1 in the field of view. Astronomer Rob Weryk (IfA) first recognized the moving object in nightly Pan-STARRS sky survey data on October 19. A/2017 is presently outbound, never to return to the Solar System, and already only visible from planet Earth in large optical telescopes. Though an interstellar origin has been established based on its orbit, it is still unknown how long the object could have drifted among the stars of the Milky Way. But its interstellar cruise speed would be about 26 kilometers per second. By comparison humanitys Voyager 1 spacecraft travels about 17 kilometers per second through interstellar space.

More: https://apod.nasa.gov/apod/ap171103.html
Telescope: WHT
Instrument: ACAM
Credit: Alan Fitzsimmons (ARC,QUB)
Date: 3 November 2017

JPG (190K) 1546×956 pixels

Full record: 1903
Description: M82 is of irregular morphology and a starburst prototype galaxy. Jacobus Kapteyn Telescope, JAG CCD Camera, Tek detector. Filters B, V and R. William Herschel Telescope, Sloan i, Sloan r and Sloan g, obtained using ACAM. Supernova SN2014J is marked.

More: http://www.ing.iac.es/PR/press/m82_sn201...
Telescope: WHT
Instrument: ACAM
Credit: Elizabeth A. Cooke (Nottingham), Nina Hatch (Nottingham), Teo Mocnik (ING).
Date: 29 April 2014

JPG (1.5M) 2110×2077 pixels
TIF (3.2M) 2110×2077 pixels

Full record: 206
Description: Image of the Cigar Galaxy or M82 obtained using ACAM on the William Herschel Telescope. Credit: Pablo Rodr

More: http://www.ing.iac.es/PR/press/m82.html
Telescope: WHT
Instrument: ACAM
Date: 21 February 2011

Full record: 1902
Description: M82 is of irregular morphology and a starburst prototype galaxy. William Herschel Telescope, HalfaRGB image obtained using ACAM. PDF version: http://www.ing.iac.es/PR/science/M82.pdf
Telescope: WHT
Instrument: ACAM
Credit: Pablo Rodriguez-Gil (ING/IAC) y Pablo Bonet (IAC).
Date: 1 January 2010

JPG (6.4M) 4000×4064 pixels

Full record: 1926
Description: ACAM first-light image of spiral galaxy Messier 51. This is a composite of images through several different filters, with red colour highlighting regions where new stars are forming. The circular field of view is 8 arcmin across (about one quarter the angular diameter of the moon). M51 galaxy, known as The Whirlpool Galaxy, is a bright spiral galaxy fairly close to us (7.5 Megaparsecs = 25 million light years). To the north of M51, at the bottom of the picture, is a companion galaxy which is being disrupted by the gravitational tidal forces of the main galaxy.
Telescope: WHT
Instrument: ACAM
Credit: Pablo Rodriguez-Gil, Chris Benn, Andrew Cardwell.
Date: 1 July 2009

JPG (3.2M) 2104×2126 pixels