Photogeology: Part Y: physical and geological aspects of heiligenschein measurements
By: Robert L. Wildey
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Abstract
Heiligenschein is the upsurge in reflected brightness as zero-phase angle is approached. For the first time, an effort has been made to investigate the diagnostic value of the heiligenschein photometric magnitude on a statistically significant scale. This investigation was performed by using the vertical photography of the Apollo 16 metric camera. The brightness surge of reflected light near zero-phase angle was studied with the expectation that it might be related to lunar geologic setting. Although previous work suggests that a real effect is present (refs. 29-121 and 29-122), the data set was small, and no correlations with other lunar surface properties were attempted. The problem is complex enough to warrant massive effort. This subsection is merely a status report.
Suggested Citation
Wildey, R.L., 1972, Photogeology: Part Y: physical and geological aspects of heiligenschein measurements, chap. of Apollo 16 preliminary science report (NASA SP 315), p. 29-113-29-119.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Photogeology: Part Y: physical and geological aspects of heiligenschein measurements |
| Series number | 315 |
| Year Published | 1972 |
| Language | English |
| Publisher | National Aeronautics and Space Administration |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Astrogeology Science Center |
| Description | 7 p. |
| Larger Work Type | Report |
| Larger Work Subtype | Federal Government Series |
| Larger Work Title | Apollo 16 preliminary science report (NASA SP 315) |
| First page | 29-113 |
| Last page | 29-119 |
| Other Geospatial | Moon |