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AR12857 newly formed as Bxo class group
Whitelight — August 15, 2021 at 10:10 AM · by isontheline · Wolf 24 · 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 August 15, 2021 by isontheline and published on Wolf.Solar. Wolf number 24 (2 groups, 4 spots). Naked-eye A number 0. Carrington rotation 2247. Tags: AR12856, AR12857, HARP6468, HARP6469.
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 | 2 |
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| Groups North | 2 |
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| Groups South | 0 |
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| Spots | 4 |
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| Spots North | 4 |
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| Spots South | 0 |
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| Plages | 1 |
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| CV number | 3 |
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| Q value | 3 |
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Conditions
| Seeing | 3 / 5 |
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| Cloud cover (octas) | 1 |
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Ephemerides
| Carrington rotation | 2247 |
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| L₀ | 170.50° |
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| B₀ | 6.66° |
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| P | 16.18° |
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| Declination | 13.91° |
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| Julian day | 2459441.92361 |
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AR12856AR12857HARP6468HARP6469
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