Fluctuations of Starlight and Skylight

reportActive / Technical Report | Accession Number: AD0000014 | Open PDF

Abstract:

Studies are to be made on the fluctuations in small areas of daytime sky, the quality of scattered blue daylight sky, and the extension of daytime and nighttime astronomical seeing to the near infrared. A photoelectric photometer was designed to make a permanent record of the behavior of areas observed by the 12.5-in. refracting telescope. The photometer uses a 1P21 photomultiplier tube, and has interchangeable filters and diaphragms and a solid CO2-cooled tube chamber. Illumination patterns of the 69-in. mirror of the 104- ft. focal-length Perkins Observatory reflecting telescope are being studied to obtain information about the manner in which daytime starlight illuminates the mirror. A literature survey of previous work on astronomical seeing is being conducted.

Author(s):
Hynek, J. Allen
Author Organization(s):
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
Descriptive Note:
Progress rept. 1 Oct-31 Dec 51
Supplementary Note:
DOI: 10.21236/AD0000014
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
OSURF-1
Contract/Grant Number(s):
AF 19(604)-41
Monitor Series:
ESC*
 Subject Terms
Joint Capability Areas:
JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5.1.1_Establish and Maintain Unity of Effort with Mission Partners; JCA_5.1_Organize; JCA_6.4.1_Secure Information Exchange
Communities of Interest:
Human Systems
Descriptor(s):
*STARLIGHT, MEASUREMENT, ILLUMINATION, VISIBILITY, ASTRONOMY, NEAR INFRARED RADIATION, TELESCOPES
Field(s)/Group(s):
Atmospheric Physics
Report Date:
1952 Mar 15