Contact information

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

Ursa Astronomical Association

Half-sky auroras - 5.9.2021 at 00.00 - 5.9.2021 at 03.00 Salla Observation number 100970

Visibility IV / V


The northern lights forecast for the evening was really poor, but bz occasionally dropped slightly to negative, so it produced a wide-ranging northern lights show even though there was little brightness.

It was about -5 degrees below zero at night.



More similar observations
Additional information
  • Aurora brightness
    • Dim auroras
Technical information

sigma art 20mm f1.4, sony a7s

Comments: 1 pcs
Timo Kuhmonen - 5.9.2021 at 11.13 Report this

Mukavan näköiset revotulet olleet siellä. Itse seurasin samaan aikaan aktiviteettia radiotaajuuksilla. Pohjois-Savossa vastaanotossa oli Rovaniemellä oleva 50MHz radiomajakka (OH9SIX). Siellä radiosignaalin aurora eteneminen alkoi 4.9.2021, noin klo 22:55 UTC aikaan. Ilmiö voimistui siitä noin puolen tunnin ajan. Voimakkuus vaihteli ajoittain ja lopulta ilmiö hävisi klo 01:45 UTC.

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