The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link

Details The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9725k&link_type=abstract

HST Proposal ID #9725

Other

Hst Proposal Id #9725 Solar System

Scientific paper

Recording the seasonal change of Uranus is a key to understand seasonal changes in atmospheres due to Uranus' high obliquity. The best record to date comes from WFPC2 imaging of Uranus since 1994. We propose to image Uranus simultaneously with similar filters in WFPC2 and ACS so that this record can be extended with future ACS observations. Without such an observation, the long-term record of WFPC2 images cannot be linked with any future images because of Uranus' steep spectral features. Observations of the Uranian rings over a wide range of sub-solar latitudes allow powerful constraints on physical parameters, such as separation between ring particles. Our proposed observations will provide the necessary link between previous WFPC2 images and future ACS images near the ring-plane-crossing of 2007. The same reasoning applies to images of Uranian satellites, where a consistent record over a wide range of sub-solar latitudes yields information about satellite shape and albedo distribution. Since Cycle 12 is the last Cycle of WFPC2, there will be no other chance for the proposed observations. The investment of only two orbits will significantly enhance the scientific value of the previous 45 WFPC2 orbits on Uranus. Only HST has the spatial resolution and photometric stability for these studies.

Affiliated with

Also associated with

No associations

Rating

The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Long-term Observational Record of Uranus' Atmosphere, its Rings, and its Satellites: the WFPC2-ACS Link will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1732974