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Today I can observe seven groups on the Solar disc
Whitelight — December 19, 2021 at 11:09 AM · by isontheline · Wolf 91 · 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 December 19, 2021 by isontheline and published on Wolf.Solar. Wolf number 91 (7 groups, 21 spots). Naked-eye A number 0. Carrington rotation 2252. Tags: AR12906, AR12907, AR12908, AR12909, AR12910, AR12911, AR12912, HARP6654, HARP6655, HARP6661, HARP6668.
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 |
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| Groups | 7 |
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| Groups North | 2 |
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| Groups South | 5 |
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| Spots | 21 |
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| Spots North | 2 |
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| Spots South | 19 |
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| Plages | 0 |
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| CV number | 121 |
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| Q value | 20 |
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Conditions
| Seeing | 4 / 5 |
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| Cloud cover (octas) | 0 |
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Ephemerides
| Carrington rotation | 2252 |
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| L₀ | 307.72° |
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| B₀ | -1.47° |
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| P | 8.07° |
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| Declination | -23.42° |
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| Julian day | 2459567.96458 |
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AR12906AR12907AR12908AR12909AR12910AR12911AR12912HARP6654HARP6655HARP6661HARP6668
Images by isontheline that day
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