Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Reiner gamma - 2.12.2020 at 00.22 Kauhava Observation number 95411

Visibility III / V

Jari Kankaanpää, Lakeuden Ursa

Reiner Gamma

Mystical “Lunar Swirl” with Oceanus Procellarum. Mystical because its origin and birth process are still unclear.

The powdery sugar-like light swirling patterns do not cast any shadows on the surrounding valley. Looks like the patterns are spray painted on the surface of the moon. Low-flying sonar has detected changes in the magnetic field in the area.

Some theories assume that this anomaly affecting particle current movements in the solar wind interacts with lunar regolite dust. For millions of years, the dust has been forced by a magnetic field into now visible patterns.

The change in the magnetic field is caused by seismic energies blurring from the lunar interior to the surface due to either an asteroid collision, volcanism, or the entire lunar formation process.

According to another theory, the trace is formed by a collision of a comet or by the breakdown of its nucleus near the surface of the moon. The pattern is best seen during the full moon.


Additional information
  • Observation target
    • Moon surface feature
  • Name of the observation target
    • Reiner gamma
    • Keskitaso
  • Seeing
    • Good
Technical information

12 Meade SCT, 3X Barlow, Case 174mm & IR-longpass

Comments: 3 pcs
Paula Wirtanen - 10.1.2021 at 18.38 Report this

No nyt on hieno havainto kiehtovasta kohteesta!

Jari Kuula - 10.1.2021 at 20.19 Report this

Hyvä tallennus kiehkurasta! Useimmat samanlaisista ovat etäpuolella, ja vastapäätä suuria törmäysaltaita. Gamman kohdalla näyttäisi vastakkainen allas puuttuvan. Procellarum -alueella on magnetismia myös esim. Sirsalis -uomilla, ja yhtälailla edelleen mystisenä ilmiönä.

Jari Kankaanpää - 11.1.2021 at 18.05 Report this

Kiitoksia Paula ja Jari!

Alueella on monenlaista mielenkiintoista havaittavaa. Eri valaistusolosuhteet tarjoavat aina uusia näkökulmia ja täydenkuun aikaan tutukin näkymät näyttävät ihan erilaisilta kuin terminaattorin olessa lähellä kohdetta. 

https://lakeudenursa.fi/kuvitus/picture.php?/1124/category/4

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