Observation by Paul Leyland: A possible detection of Thebe (Jupiter X...

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Constellation

Tucana

Field centre

RA: 00^h59^m
Dec: -59°34'
Position angle: -48°53'

Field size

5°41' × 2°54'

Equipment

0.4m Dilworth-Relay
SX Trius Pro 814
No filter

Exposure

20s and 62x5s stacked on predicted motion of Thebe

Location

Tacande Observatory, MPC J22

Target name

Thebe (Jupiter XIV)

Title

A possible detection of Thebe (Jupiter XIV)

About this image

Please read https://britastro.org/node/23658 for details on this observation

Files associated with this observation

Thebe_annote.png (258.5 kB)

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Jeremy Shears, Peter Carson

Comments

Paul Leyland, 2020 Sep 09 - 13:55 UTC

At the urging of Mark Kidger, I fought Astrometrica into submission to measure a position for Thebe.

At 22:24:23 UT Thebe was measured to be at 19:23:44.099 -22:25:14.62 with a formal error of 0.09 arcsec in each coordinate. The systematic errors arising from the difficulty of placing the centroid by eye are probably 2 or 3 times that.

There is no significant difference from the position predicted by the JPL.

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