S. Luszcz-Cook

TL;DR: In this article, an analysis of the orbital motion of the four sub-stellar objects orbiting HR8799 is presented, based on the published astrometric history of this system augmented with an epoch obtained with the Project 1640 coronagraph + Integral Field Spectrograph (IFS) installed at the Palomar Hale telescope.

TL;DR: In this article, the authors observed Neptune between June and October 2003 at near and mid-infrared wavelengths with the 10m WM Keck II and I telescopes, respectively; and at radio wavelengths with NIRC2 coupled to the adaptive optics system in both broad- and narrow-band filters between 12 and 22 μ m.

TL;DR: SDS-2015 was discovered by the Hubble Space Telescope (HST) in 2015 as mentioned in this paper, and the size of the dark spot did not exceed 20 degrees of longitude, more than a factor of two smaller than the Voyager dark spots, but only slightly smaller than previous northernhemisphere dark spots.

TL;DR: In this article, the authors reported the discovery of a large (∼"8500"km diameter) infrared-bright storm at Neptune's equator in June 2017. And they tracked the storm over a period of 7 months with high-cadence infrared snapshot imaging, carried out on 14 nights at the 10m Keck II telescope and 17 nights at a 120 inch reflector at Lick Observatory.

TL;DR: In this paper, the authors track the positions of ∼100 bright atmospheric features over a 4-5 h window on each night to derive zonal velocities and wind profiles, which deviate from the smooth Voyager zonal wind profile from Sromovsky et al. (1993), often by 100-200m/s, and often by 3-10 times their estimated uncertainties.