Engineering topics
Publications and source records attributed to Ballester, G..
We describe Saturn's aurora as observed by HST in 10/1994, 10/1995, and 10-12/1997. HST provides access to the auroral emissions due to atomic and molecular hydrogen in the northern and southern auroral zones.
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We report Hubble Space Telescope observations of variability within the reflection nebulosity of HH 30, a compact bipolar nebula which is a nearly edge-on accretion disk system.
Careful examination of 28,460 selected Wide Field and Planetary Camera 2 (WFPC2) long exposures from 1994, 1995 and early 1996 has revealed trails of 96 distinct moving objects.
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The Hubble Space Telescope Wide Field Planetary Camera 2 was used to observe Neptune on 28-29 June 1994.
This paper provides an overview of the characteristics of the second Wide Field and Planetary Camera and some authors' perspectives of its first six months of operation on orbit.