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Relevé Lumière Blanche du 2023-07-17 13:01 UTC
Whitelight — July 17, 2023 at 01:01 PM · by aquarellia · Wolf 139 · A 1 ⚠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 July 17, 2023 by aquarellia and published on Wolf.Solar. Wolf number 139 (9 groups, 49 spots). Naked-eye A number 1. Carrington rotation 2273.
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! | 1 |
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| Groups | 9 |
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| Groups North | 4 |
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| Groups South | 5 |
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| Spots | 49 |
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| Spots North | 32 |
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| Spots South | 17 |
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Conditions
| Seeing | 3 / 5 |
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| Cloud cover (octas) | -1 |
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Ephemerides
| Carrington rotation | 2273 |
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| L₀ | 277.38° |
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| B₀ | 4.52° |
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| P | 4.60° |
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| Declination | 21.18° |
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| Julian day | 2460143.04236 |
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