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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Mare Orientale - 8.12.2020 at 09.00 Joensuu Observation number 95183

Visibility Unclassified

Antti Taskinen, Joensuun Seulaset

Thanks to favorable ligation, Mare Orientale showed a pretty good decline in the crescent phase. The concentric mountain ranges Montes Rook and Montes Cordillera connected to the sea also stood out, as did the lava areas Lacus Veris and Lacus Autumni inside those mountains. The main image in the lower middle shows the central-lined Sirsalis crater and its partially covered Sirsalis A. The clear beam system shown on the left belongs to the 19 km diameter Byrgius A crater. Em. the clearly visible grooves between the craters are part of the Rimae Sirsal. Rimae Darwin, on the other hand, stands out only weakly in this lighting.

Additional information
  • Observation target
    • Moon surface feature
  • Name of the observation target
    • Mare Orientale
    • Näyttävä
  • Seeing
    • Average
Technical information

Sky-Watcher Explorer 200 PDS, 2x Barlow, ZWO ASI120MM-S, Baader 685 nm IR-pass filter. Stack of 2000 squares. Software used: FireCapture, As! 3, RegiStax6, Ps, Lr.

Comments: 5 pcs
Jerry Jantunen - 12.12.2020 at 21.01 Report this

Huippuhyvä kuva hienosta kohteesta, joka yleensä on kovin etevä väistelemään kuvausyrityksiä. Tässä on libraatio osunut nappiin.

Antti Taskinen - 13.12.2020 at 12.29 Report this

Kiitoksia kommentista, Jerry! Joskus, tosin aika harvoin, olosuhteet osuvat kohdilleen. Tuuria tässäkin mukana melkoisesti.

Rainer Vastamäki - 14.12.2020 at 11.01 Report this

Onpas hyvin onnistunut kuva. 

Paula Wirtanen - 14.12.2020 at 20.55 Report this

Hieno otos! Kohdekaan kun ei ole ihan joka kerran näkyvillä.

Antti Taskinen - 14.12.2020 at 23.39 Report this

Kiitos kivoista kommenteistanne, Rainer ja Paula!

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