The angular diameter of vesta from speckle interferometry

Simon P. Worden; Murray K. Stein; Gary D. Schmidt; J. R.P. Angel

doi:10.1016/0019-1035(77)90016-1

The angular diameter of vesta from speckle interferometry

Simon P. Worden, Murray K. Stein, Gary D. Schmidt, J. R.P. Angel

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35 Scopus citations

Abstract

It is shown that the autocorrelation function of a telescope diffraction-limited image is closely approximated by a subtraction of the mean cross correlation of pairs of speckle photographs from the mean autocorrelation of the same set of data. This fact is used to derive the angular diameter of the asteroid Vesta from a series of speckle interferometry data. The resultant apparent angular diameter of 0″.40 ± 0″.04 corresponds to an absolute diameter of 513 ± 51 km.

Original language	English (US)
Pages (from-to)	450-457
Number of pages	8
Journal	Icarus
Volume	32
Issue number	4
DOIs	https://doi.org/10.1016/0019-1035(77)90016-1
State	Published - Dec 1977

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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title = "The angular diameter of vesta from speckle interferometry",

abstract = "It is shown that the autocorrelation function of a telescope diffraction-limited image is closely approximated by a subtraction of the mean cross correlation of pairs of speckle photographs from the mean autocorrelation of the same set of data. This fact is used to derive the angular diameter of the asteroid Vesta from a series of speckle interferometry data. The resultant apparent angular diameter of 0″.40 ± 0″.04 corresponds to an absolute diameter of 513 ± 51 km.",

author = "Worden, {Simon P.} and Stein, {Murray K.} and Schmidt, {Gary D.} and Angel, {J. R.P.}",

year = "1977",

month = dec,

doi = "10.1016/0019-1035(77)90016-1",

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journal = "Icarus",

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T1 - The angular diameter of vesta from speckle interferometry

AU - Worden, Simon P.

AU - Stein, Murray K.

AU - Schmidt, Gary D.

AU - Angel, J. R.P.

PY - 1977/12

Y1 - 1977/12

N2 - It is shown that the autocorrelation function of a telescope diffraction-limited image is closely approximated by a subtraction of the mean cross correlation of pairs of speckle photographs from the mean autocorrelation of the same set of data. This fact is used to derive the angular diameter of the asteroid Vesta from a series of speckle interferometry data. The resultant apparent angular diameter of 0″.40 ± 0″.04 corresponds to an absolute diameter of 513 ± 51 km.

AB - It is shown that the autocorrelation function of a telescope diffraction-limited image is closely approximated by a subtraction of the mean cross correlation of pairs of speckle photographs from the mean autocorrelation of the same set of data. This fact is used to derive the angular diameter of the asteroid Vesta from a series of speckle interferometry data. The resultant apparent angular diameter of 0″.40 ± 0″.04 corresponds to an absolute diameter of 513 ± 51 km.

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U2 - 10.1016/0019-1035(77)90016-1

DO - 10.1016/0019-1035(77)90016-1

M3 - Article

AN - SCOPUS:0039368695

SN - 0019-1035

VL - 32

SP - 450

EP - 457

JO - Icarus

JF - Icarus

IS - 4

ER -

The angular diameter of vesta from speckle interferometry

Abstract

ASJC Scopus subject areas

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