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Two new great sunspots groups : AR12877 / AR12880

Whitelight — September 30, 2021 at 09:27 AM · by isontheline · Wolf 39 · A 0 ⚠Warning — Your eye must be behind a suitable filter! Never look at the Sun without proper visual protection! Can cause serious eye damage or blindness!

Whitelight solar observation made on September 30, 2021 by isontheline and published on Wolf.Solar. Wolf number 39 (2 groups, 19 spots). Naked-eye A number 0. Carrington rotation 2249. Tags: AR12877, AR12880, HARP6524, HARP6532.

Counts

A number (naked eye) ⚠Warning — Your eye must be behind a suitable filter! Never look at the Sun without proper visual protection! Can cause serious eye damage or blindness!0
Groups2
Groups North1
Groups South1
Spots19
Spots North9
Spots South10
Plages2
CV number77
Q value8

Conditions

Seeing2 / 5
Cloud cover (octas)0

Ephemerides

Carrington rotation2249
L₀283.40°
B₀6.75°
P25.92°
Declination-2.95°
Julian day2459487.89375

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Daily mean Wolf number39
Observations1
CR2249
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Comments

GroupTypeSunspotsQ ValueCV-number
AR12877 / HARP652410Dai422
AR12880 / HARP65329Dkc455
Total Sunspots / Q / CV-19877

AR12877AR12880HARP6524HARP6532

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