Skip to content

Checking the NOAA OVATION feed

Comparison

Arkhangel'sk vs Apatity for the northern lights

Answer

Apatity sits 3.8 degrees higher on the IGRF-14 dipole, 63.6 against 59.8. By SWPC's oval-edge rule Apatity needs about Kp 2 for the average edge to sit overhead and Arkhangel'sk Kp 4. On the map Apatity is also closer to the pole, by 3.0 degrees.
59.8° / 63.6°
dipole latitude

Side by side

Computed figures for both towns
FigureArkhangel'skApatity
Dipole latitude59.8°63.6°
Kp for the oval edge overheadKp 4Kp 2
Civil night, December 1517.1 h18.2 h
Dark-season days267249
Nights with no civil darkness7497
Dark-month cloud, NASA POWER79%79%
Solar midnight, December 1500:1300:41

Arkhangel'sk sits at 59.8 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 4, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less. Apatity sits at 63.6 degrees geomagnetic, inside SWPC's 60 to 75 degree band, where aurora can be seen on more than half of all nights. No storm is needed: by SWPC's rule the average oval edge is overhead at Kp 2.

Civil night month by month

On December 15 Arkhangel'sk has 17.1 hours of civil night and Apatity 18.2. Across the 15th of each month, Arkhangel'sk is darker in 4 months and Apatity in 5. The widest gap comes in August, when Arkhangel'sk has 1.7 more hours.

Hours of civil night on the 15th of each month, 2026
MonthArkhangel'skApatityDifference
January16.2 h17.1 h-0.9 h
February13.5 h13.8 h-0.3 h
March10.5 h10.3 h+0.2 h
April6.7 h5.8 h+0.9 h
May0.0 h0.0 h+0.0 h
June0.0 h0.0 h+0.0 h
July0.0 h0.0 h+0.0 h
August5.1 h3.4 h+1.7 h
September9.2 h8.8 h+0.4 h
October12.5 h12.6 h-0.1 h
November15.4 h16.1 h-0.7 h
December17.1 h18.2 h-1.1 h
Difference: Arkhangel'sk minus Apatity. Each figure links to that town's month page.

Season and midnight sun

Arkhangel'sk has no civil darkness from May 15 to July 27, 74 nights in 2026, and its dark season, 4 or more evening hours of civil night, lasts 267 days. Apatity has no civil darkness from May 4 to August 8, 97 nights in 2026, and its dark season, 4 or more evening hours of civil night, lasts 249 days.

Distance, cloud and time zones

The two towns are 466 km apart by great circle. In the dark months both average about 79% cloud in NASA POWER's 2001 to 2020 record. Arkhangel'sk's best month by civil night times clear sky is January. Apatity's best month by civil night times clear sky is January. Time zones: Europe/Moscow and Europe/Moscow.

For tonight, open the live pages for Arkhangel'sk and Apatity, which carry the live OVATION cell.

Questions

Is Arkhangel'sk or Apatity better for the northern lights?
Apatity sits closer to the oval, at 63.6 degrees geomagnetic against 59.8. Darkness, cloud and your dates decide the rest; the tables on this page show both towns month by month.
Which has longer nights in December, Arkhangel'sk or Apatity?
Apatity, with 18.2 hours of civil night on December 15 against 17.1 in Arkhangel'sk.
What Kp do Arkhangel'sk and Apatity need?
By SWPC's rule of 66 degrees at Kp 0 and 2 degrees per step, Arkhangel'sk needs about Kp 4 and Apatity Kp 2 for the average oval edge to sit overhead.
When is it too light for aurora in Arkhangel'sk and Apatity?
Arkhangel'sk: May 15 to July 27. Apatity: May 4 to August 8.
Which is clearer, Arkhangel'sk or Apatity?
Apatity, with 79% mean cloud in the months with 4 hours or more of civil night against 79% in Arkhangel'sk (NASA POWER, 2001 to 2020).

Sources and verification

Quoted figures last checked against their sources on 2026-09-30; next review 2026-12-31. Computed figures come from SunCalc and the IGRF-14 dipole as described in the methodology. Every quote is listed in the sources ledger.