Nereid is the third largest largest satellite of Neptune and the second easiest to image, Triton being in first place in both categories. Proteus is somewhat larger but orbits much closer to Neptune and is therefore very difficult to image from the Earth because it is lost in the glare from the planet. When this image was taken Nereid was at magnitude 18.75.
The greatly over-exposed disk of Neptune appears at the lower right of this image. Triton is visible but is also over-exposed and its image merges with that of Neptune; it is the bump on the top of Neptune's image.
|Date and time of observation||2018-11-27 21:35 UT|
|Telescope||0.4m f/6.5 Dilworth-Relay|
|Centre of image||RA 23h00m46.5s Dec -7°23'46"|
|Image dimensions||11.8 arcmin × 5.7 arcmin|