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Observation by Andrew Ciavarella: Mars LCM 311 28/5/18

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Andrew Ciavarella


Andrew Ciavarella


2018 May 28 - 02:45


2018 May 30 - 20:16



  • 9mm ortho. + 2x + 1.6x barlows
  • 254mm reflector F4.5

Taunton, Somerset

Target name



Mars LCM 311 28/5/18

About this image

Observed 03:37 - 04:05 UT, features at 03:45UT, seeing III or better. A lot more detail could have been had given seeing but cloud terminated the session: great shame as I've mostly had poor seeing since April. A classic view of Mars with Syrtis Major draped down the western side of the planet, Sinus Sabaeus prominent and the SPC still substantial.

Syrtis most intense in a 'V' extending further up the east side to a nick. Southern edge of Sabaeus appeared more intense with a nick 1/3 of the way in from the west. More confident of subtle N. Hem markings around Syrtis, and lightest region immediately East of Syrtis. Appearance of lighter striations center disc SE of Hellas but detail of low confidence. Hellas obvious though not bright.

A bright diffuse region at terminator W of Syrtis (Isidis) and a lower confidence bright spot E of SPC. I noted no other bright spots on the limbs, which is a less common occurrence taken over the meridians observed since mid April (about all of them).

High confidence in a dark rim all the way round the SPC.

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