NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Photometry, spectrophotometry and polarimetry of comet P/Encke during fall of 1979Broadband S-20, B and V magnitudes of P/Encke were obtained with the digital area photometer, using an Image Dissector Scanner (IDS) detector on the 2.7 m telescope at McDonald Observatory during August 1979. The notation V(S-20) is used for S-20 magnitudes transformed to V magnitudes. The variation in the V(S20) magnitudes (26, 5 minute integrations) on the best photometric night (21 August) was small and random indicating either a lack of rotational albedo variations or, more likely, a masking of the nucleus by the outburst activity. A spectrum covering the region from 3630 to 4900 A at a resolution of 5 A was obtained on 27 August with the IDS spectrograph. The spectrum was featureless, showing no emission at the CN or CO+ wavelengths.
Document ID
19810003465
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Barker, E. S. (McDonald Observatory Austin, TX, United States)
Smith, H. J. (McDonald Observatory Austin, TX, United States)
Cochran, A. L. (McDonald Observatory Austin, TX, United States)
Date Acquired
September 4, 2013
Publication Date
October 1, 1980
Subject Category
Lunar And Planetary Exploration
Report/Patent Number
NASA-CR-163717
REPT-1
Accession Number
81N11973
Funding Number(s)
CONTRACT_GRANT: JPL-BP-708823
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available