"Visibility Curve" of the Star Psi Phoenicis

This chart shows the "visibility curve" for the red giant star Psi Phoenicis as measured on two nights (16 data sets; three points to the right) with two VLT UTs (ANTU + MELIPAL) for three different positions in the sky and on four nights with the 40-cm test siderostats on a shorter 16-m baseline (8 data sets; one point to the left); see the text below. From the fitted curve, a preliminary value of the angular diameter is 8.21 ± 0.02 milli-arcsec (mas).

Credit:

ESO

About the Image

Id:eso0134e
Type:Chart
Release date:5 November 2001
Related releases:eso0134
Size:686 x 684 px

About the Object

Name:Psi Phoenicis
Type:• Milky Way : Star : Type : Variable : Pulsating
• X - Stars
Distance:5500 light years

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