Lo Sky Quality Meter è uno strumento utile a misurare la luminosità del cielo. L’unità di misura utilizzata è la magnitudine per arcosecondo quadrato. Maggiore è la magnitudine rilevata, minore sarà l’inquinamento luminoso presente.
All’Osservatorio abbiamo un sensore installato sulla cupola che rileva questa lettura ogni 5 minuti e la manda su un server dove viene elaborata e graficizzata. Il grafico sottostante viene aggiornato continuamente durante la notte e viene azzerato al crepuscolo quando iniziano le letture per il giorno successivo.
Letture medie e massime ultimi 30 giorni
Le letture vengono rese disponibili anche in formato Excel a partire dalle 7:45 ogni mattina, insieme ad altri parametri. Le colonne di questo file vanno lette così:
MPSAS: | Magnitudine/arcsec2 |
NELM: | Magnitudine stellare teorica visibile ad occhio nudo |
Temp: | Temperatura del sensore |
EncOffset: | Correzione alla magnitudine dovuta alla perdita di luminosità per la copertura del sensore |
SolarAlt: | Altezza del sole in gradi decimali rispetto all’orizzonte |
LunarAlt: | Altezza della luna in gradi decimali rispetto all’orizzonte |
LunarPhase: | Fase lunare (0=luna nuova, 1: luna piena) |
Letture SQM delle ultime 24 ore
DateTime | MPSAS | NELM | Temp | EncOffset | SolarAlt | LunarAlt | LunarPhase |
---|---|---|---|---|---|---|---|
06/02/2023 05:30 PM | 7.64 | -6.01 | 4.50 | 0.10 | -1.10 | -6.14 | 0.99 |
06/02/2023 05:35 PM | 8.24 | -5.41 | 5.10 | 0.10 | -1.92 | -5.41 | 0.99 |
06/02/2023 05:40 PM | 9.02 | -4.64 | 5.80 | 0.10 | -2.74 | -4.69 | 0.99 |
06/02/2023 05:45 PM | 9.83 | -3.83 | 6.40 | 0.10 | -3.57 | -3.95 | 0.99 |
06/02/2023 05:50 PM | 10.76 | -2.90 | 6.70 | 0.10 | -4.39 | -3.21 | 0.99 |
06/02/2023 05:55 PM | 11.73 | -1.94 | 7.00 | 0.10 | -5.23 | -2.46 | 0.99 |
06/02/2023 06:00 PM | 12.92 | -0.77 | 7.40 | 0.10 | -6.07 | -1.71 | 0.99 |
06/02/2023 06:05 PM | 14.00 | 0.28 | 7.40 | 0.10 | -6.91 | -0.95 | 0.99 |
06/02/2023 06:10 PM | 15.10 | 1.34 | 7.70 | 0.10 | -7.75 | -0.18 | 0.99 |
06/02/2023 06:15 PM | 15.94 | 2.13 | 7.70 | 0.10 | -8.60 | 0.59 | 0.99 |
06/02/2023 06:20 PM | 16.97 | 3.07 | 7.70 | 0.10 | -9.45 | 1.36 | 0.99 |
06/02/2023 06:25 PM | 17.49 | 3.53 | 7.70 | 0.10 | -10.30 | 2.14 | 0.99 |
06/02/2023 06:30 PM | 17.91 | 3.89 | 7.70 | 0.10 | -11.16 | 2.93 | 0.99 |
06/02/2023 06:35 PM | 18.21 | 4.14 | 7.70 | 0.10 | -12.02 | 3.72 | 0.99 |
06/02/2023 06:40 PM | 18.26 | 4.18 | 7.70 | 0.10 | -12.88 | 4.51 | 0.99 |
06/02/2023 06:45 PM | 18.31 | 4.22 | 8.00 | 0.10 | -13.74 | 5.31 | 0.99 |
06/02/2023 06:50 PM | 18.31 | 4.22 | 8.00 | 0.10 | -14.61 | 6.11 | 0.99 |
06/02/2023 06:55 PM | 18.33 | 4.24 | 8.00 | 0.10 | -15.47 | 6.92 | 0.99 |
06/02/2023 07:00 PM | 18.42 | 4.31 | 8.00 | 0.10 | -16.34 | 7.73 | 0.99 |
06/02/2023 07:05 PM | 18.19 | 4.13 | 8.00 | 0.10 | -17.21 | 8.54 | 0.99 |
06/02/2023 07:10 PM | 18.18 | 4.12 | 8.00 | 0.10 | -18.08 | 9.36 | 0.99 |
06/02/2023 07:15 PM | 18.23 | 4.16 | 8.00 | 0.10 | -18.95 | 10.18 | 0.99 |
06/02/2023 07:20 PM | 18.26 | 4.18 | 8.00 | 0.10 | -19.83 | 11.00 | 0.99 |
06/02/2023 07:25 PM | 18.17 | 4.11 | 7.70 | 0.10 | -20.70 | 11.82 | 0.99 |
06/02/2023 07:30 PM | 18.42 | 4.31 | 7.70 | 0.10 | -21.57 | 12.65 | 0.99 |
06/02/2023 07:35 PM | 18.44 | 4.33 | 7.70 | 0.10 | -22.44 | 13.48 | 0.99 |
06/02/2023 07:40 PM | 18.39 | 4.29 | 7.70 | 0.10 | -23.32 | 14.31 | 0.99 |
06/02/2023 07:45 PM | 18.17 | 4.11 | 7.70 | 0.10 | -24.19 | 15.14 | 0.99 |
06/02/2023 07:50 PM | 17.80 | 3.80 | 7.40 | 0.10 | -25.06 | 15.98 | 0.99 |
06/02/2023 07:55 PM | 17.76 | 3.77 | 7.40 | 0.10 | -25.93 | 16.82 | 0.99 |
06/02/2023 08:00 PM | 17.74 | 3.75 | 7.40 | 0.10 | -26.81 | 17.66 | 0.99 |
06/02/2023 08:05 PM | 17.66 | 3.68 | 7.40 | 0.10 | -27.67 | 18.49 | 0.99 |
06/02/2023 08:10 PM | 17.63 | 3.65 | 7.40 | 0.10 | -28.54 | 19.34 | 0.99 |
06/02/2023 08:15 PM | 17.49 | 3.53 | 7.40 | 0.10 | -29.41 | 20.18 | 0.99 |
06/02/2023 08:20 PM | 17.31 | 3.38 | 7.40 | 0.10 | -30.27 | 21.02 | 0.99 |
06/02/2023 08:25 PM | 17.21 | 3.29 | 7.40 | 0.10 | -31.13 | 21.86 | 0.99 |
06/02/2023 08:30 PM | 17.29 | 3.36 | 7.40 | 0.10 | -31.99 | 22.70 | 0.99 |
06/02/2023 08:35 PM | 17.35 | 3.41 | 7.40 | 0.10 | -32.85 | 23.55 | 0.99 |
06/02/2023 08:40 PM | 17.26 | 3.33 | 7.40 | 0.10 | -33.70 | 24.39 | 0.99 |
06/02/2023 08:45 PM | 17.35 | 3.41 | 7.40 | 0.10 | -34.55 | 25.23 | 0.99 |
06/02/2023 08:50 PM | 17.43 | 3.48 | 7.40 | 0.10 | -35.40 | 26.07 | 0.99 |
06/02/2023 08:55 PM | 17.38 | 3.44 | 7.40 | 0.10 | -36.24 | 26.91 | 0.99 |
06/02/2023 09:00 PM | 17.74 | 3.75 | 7.00 | 0.10 | -37.08 | 27.75 | 0.99 |
06/02/2023 09:05 PM | 17.96 | 3.93 | 7.00 | 0.10 | -37.91 | 28.59 | 0.99 |
06/02/2023 09:10 PM | 17.84 | 3.83 | 7.00 | 0.10 | -38.73 | 29.43 | 0.99 |
06/02/2023 09:15 PM | 17.64 | 3.66 | 6.70 | 0.10 | -39.56 | 30.26 | 0.99 |
06/02/2023 09:20 PM | 17.66 | 3.68 | 6.70 | 0.10 | -40.37 | 31.10 | 0.99 |
06/02/2023 09:25 PM | 18.05 | 4.01 | 6.70 | 0.10 | -41.18 | 31.93 | 0.99 |
06/02/2023 09:30 PM | 17.98 | 3.95 | 6.40 | 0.10 | -41.98 | 32.75 | 0.99 |
06/02/2023 09:35 PM | 17.84 | 3.83 | 6.40 | 0.10 | -42.78 | 33.58 | 0.99 |
06/02/2023 09:40 PM | 17.56 | 3.59 | 6.40 | 0.10 | -43.56 | 34.40 | 0.99 |
06/02/2023 09:45 PM | 17.39 | 3.45 | 6.10 | 0.10 | -44.34 | 35.22 | 0.99 |
06/02/2023 09:50 PM | 17.32 | 3.38 | 6.10 | 0.10 | -45.11 | 36.03 | 0.99 |
06/02/2023 09:55 PM | 17.21 | 3.29 | 6.10 | 0.10 | -45.87 | 36.84 | 0.99 |
06/02/2023 10:00 PM | 17.01 | 3.11 | 6.10 | 0.10 | -46.61 | 37.64 | 0.99 |
06/02/2023 10:05 PM | 17.23 | 3.31 | 6.10 | 0.10 | -47.35 | 38.44 | 0.99 |
06/02/2023 10:10 PM | 17.01 | 3.11 | 6.10 | 0.10 | -48.08 | 39.24 | 0.99 |
06/02/2023 10:15 PM | 16.92 | 3.03 | 6.10 | 0.10 | -48.79 | 40.03 | 0.99 |
06/02/2023 10:20 PM | 16.93 | 3.04 | 6.40 | 0.10 | -49.49 | 40.81 | 0.99 |
06/02/2023 10:25 PM | 16.91 | 3.02 | 6.40 | 0.10 | -50.18 | 41.59 | 0.99 |
06/02/2023 10:30 PM | 16.97 | 3.07 | 6.40 | 0.10 | -50.85 | 42.36 | 0.99 |
06/02/2023 10:35 PM | 16.92 | 3.03 | 6.40 | 0.10 | -51.50 | 43.11 | 0.99 |
06/02/2023 10:40 PM | 17.01 | 3.11 | 6.40 | 0.10 | -52.14 | 43.87 | 0.99 |
06/02/2023 10:45 PM | 17.26 | 3.33 | 6.40 | 0.10 | -52.76 | 44.61 | 0.99 |
06/02/2023 10:50 PM | 17.20 | 3.28 | 6.40 | 0.10 | -53.36 | 45.35 | 0.99 |
06/02/2023 10:55 PM | 17.70 | 3.71 | 6.40 | 0.10 | -53.94 | 46.07 | 0.99 |
06/02/2023 11:00 PM | 17.46 | 3.51 | 6.40 | 0.10 | -54.50 | 46.78 | 0.99 |
06/02/2023 11:05 PM | 17.37 | 3.43 | 6.40 | 0.10 | -55.04 | 47.49 | 0.99 |
06/02/2023 11:10 PM | 16.69 | 2.82 | 6.70 | 0.10 | -55.56 | 48.18 | 0.99 |
06/02/2023 11:15 PM | 17.84 | 3.83 | 6.70 | 0.10 | -56.05 | 48.86 | 0.99 |
06/02/2023 11:20 PM | 17.63 | 3.65 | 6.70 | 0.10 | -56.52 | 49.52 | 0.99 |
06/02/2023 11:25 PM | 16.23 | 2.40 | 6.70 | 0.10 | -56.96 | 50.17 | 0.99 |
06/02/2023 11:30 PM | 16.46 | 2.61 | 6.70 | 0.10 | -57.37 | 50.81 | 0.99 |
06/02/2023 11:35 PM | 16.46 | 2.61 | 6.70 | 0.10 | -57.76 | 51.43 | 0.99 |
06/02/2023 11:40 PM | 16.13 | 2.31 | 6.70 | 0.10 | -58.11 | 52.03 | 0.99 |
06/02/2023 11:45 PM | 17.09 | 3.18 | 6.70 | 0.10 | -58.44 | 52.61 | 0.99 |
06/02/2023 11:50 PM | 16.35 | 2.51 | 6.40 | 0.10 | -58.73 | 53.18 | 0.99 |
06/02/2023 11:55 PM | 16.30 | 2.47 | 6.70 | 0.10 | -58.99 | 53.72 | 0.99 |
07/02/2023 12:00 AM | 15.91 | 2.11 | 6.70 | 0.10 | -59.21 | 54.25 | 0.99 |
07/02/2023 12:05 AM | 16.30 | 2.47 | 6.70 | 0.10 | -59.41 | 54.75 | 0.99 |
07/02/2023 12:10 AM | 17.12 | 3.21 | 6.40 | 0.10 | -59.56 | 55.23 | 0.98 |
07/02/2023 12:15 AM | 16.70 | 2.83 | 6.40 | 0.10 | -59.68 | 55.69 | 0.98 |
07/02/2023 12:20 AM | 17.01 | 3.11 | 6.40 | 0.10 | -59.77 | 56.12 | 0.98 |
07/02/2023 12:25 AM | 16.89 | 3.00 | 6.40 | 0.10 | -59.82 | 56.53 | 0.98 |
07/02/2023 12:30 AM | 16.84 | 2.96 | 6.10 | 0.10 | -59.83 | 56.91 | 0.98 |
07/02/2023 12:35 AM | 16.74 | 2.87 | 6.10 | 0.10 | -59.81 | 57.26 | 0.98 |
07/02/2023 12:40 AM | 16.65 | 2.79 | 6.10 | 0.10 | -59.75 | 57.58 | 0.98 |
07/02/2023 12:45 AM | 16.30 | 2.47 | 6.10 | 0.10 | -59.65 | 57.88 | 0.98 |
07/02/2023 12:50 AM | 16.36 | 2.52 | 6.10 | 0.10 | -59.52 | 58.14 | 0.98 |
07/02/2023 12:55 AM | 16.34 | 2.50 | 5.80 | 0.10 | -59.35 | 58.37 | 0.98 |
07/02/2023 01:00 AM | 16.14 | 2.32 | 5.80 | 0.10 | -59.15 | 58.57 | 0.98 |
07/02/2023 01:05 AM | 16.02 | 2.21 | 5.80 | 0.10 | -58.91 | 58.73 | 0.98 |
07/02/2023 01:10 AM | 15.94 | 2.13 | 5.80 | 0.10 | -58.64 | 58.87 | 0.98 |
07/02/2023 01:15 AM | 15.87 | 2.07 | 5.80 | 0.10 | -58.34 | 58.96 | 0.98 |
07/02/2023 01:20 AM | 15.75 | 1.96 | 5.80 | 0.10 | -58.00 | 59.03 | 0.98 |
07/02/2023 01:25 AM | 15.69 | 1.90 | 5.40 | 0.10 | -57.64 | 59.06 | 0.98 |
07/02/2023 01:30 AM | 15.66 | 1.87 | 5.40 | 0.10 | -57.24 | 59.05 | 0.98 |
07/02/2023 01:35 AM | 15.60 | 1.82 | 5.40 | 0.10 | -56.82 | 59.01 | 0.98 |
07/02/2023 01:40 AM | 15.65 | 1.86 | 5.40 | 0.10 | -56.37 | 58.94 | 0.98 |
07/02/2023 01:45 AM | 15.63 | 1.84 | 5.40 | 0.10 | -55.90 | 58.83 | 0.98 |
07/02/2023 01:50 AM | 15.67 | 1.88 | 5.40 | 0.10 | -55.40 | 58.68 | 0.98 |
07/02/2023 01:55 AM | 15.69 | 1.90 | 5.10 | 0.10 | -54.87 | 58.51 | 0.98 |
07/02/2023 02:00 AM | 15.79 | 1.99 | 5.10 | 0.10 | -54.33 | 58.30 | 0.98 |
07/02/2023 02:05 AM | 15.84 | 2.04 | 5.10 | 0.10 | -53.76 | 58.06 | 0.98 |
07/02/2023 02:10 AM | 15.89 | 2.09 | 4.80 | 0.10 | -53.17 | 57.78 | 0.98 |
07/02/2023 02:15 AM | 15.97 | 2.16 | 4.80 | 0.10 | -52.56 | 57.48 | 0.98 |
07/02/2023 02:20 AM | 16.10 | 2.28 | 4.80 | 0.10 | -51.94 | 57.14 | 0.98 |
07/02/2023 02:25 AM | 16.22 | 2.39 | 4.80 | 0.10 | -51.29 | 56.78 | 0.98 |
07/02/2023 02:30 AM | 16.29 | 2.46 | 4.50 | 0.10 | -50.63 | 56.39 | 0.98 |
07/02/2023 02:35 AM | 16.40 | 2.56 | 4.50 | 0.10 | -49.96 | 55.97 | 0.98 |
07/02/2023 02:40 AM | 16.49 | 2.64 | 4.10 | 0.10 | -49.27 | 55.53 | 0.98 |
07/02/2023 02:45 AM | 16.62 | 2.76 | 4.10 | 0.10 | -48.56 | 55.06 | 0.98 |
07/02/2023 02:50 AM | 16.62 | 2.76 | 4.10 | 0.10 | -47.84 | 54.57 | 0.98 |
07/02/2023 02:55 AM | 16.70 | 2.83 | 3.80 | 0.10 | -47.11 | 54.06 | 0.98 |
07/02/2023 03:00 AM | 16.78 | 2.90 | 3.80 | 0.10 | -46.37 | 53.52 | 0.98 |
07/02/2023 03:05 AM | 16.84 | 2.96 | 3.80 | 0.10 | -45.62 | 52.96 | 0.98 |
07/02/2023 03:10 AM | 16.92 | 3.03 | 3.50 | 0.10 | -44.86 | 52.39 | 0.98 |
07/02/2023 03:15 AM | 17.01 | 3.11 | 3.80 | 0.10 | -44.09 | 51.79 | 0.98 |
07/02/2023 03:20 AM | 17.05 | 3.15 | 3.50 | 0.10 | -43.30 | 51.17 | 0.98 |
07/02/2023 03:25 AM | 17.11 | 3.20 | 3.50 | 0.10 | -42.52 | 50.55 | 0.98 |
07/02/2023 03:30 AM | 17.16 | 3.24 | 3.50 | 0.10 | -41.72 | 49.90 | 0.98 |
07/02/2023 03:35 AM | 17.24 | 3.31 | 3.20 | 0.10 | -40.91 | 49.24 | 0.98 |
07/02/2023 03:40 AM | 17.29 | 3.36 | 3.20 | 0.10 | -40.10 | 48.56 | 0.98 |
07/02/2023 03:45 AM | 17.32 | 3.38 | 3.50 | 0.10 | -39.28 | 47.87 | 0.98 |
07/02/2023 03:50 AM | 17.39 | 3.45 | 3.50 | 0.10 | -38.46 | 47.17 | 0.98 |
07/02/2023 03:55 AM | 17.43 | 3.48 | 3.50 | 0.10 | -37.63 | 46.45 | 0.98 |
07/02/2023 04:00 AM | 17.47 | 3.52 | 3.50 | 0.10 | -36.80 | 45.73 | 0.98 |
07/02/2023 04:05 AM | 17.51 | 3.55 | 3.50 | 0.10 | -35.96 | 44.99 | 0.98 |
07/02/2023 04:10 AM | 17.56 | 3.59 | 3.50 | 0.10 | -35.11 | 44.24 | 0.98 |
07/02/2023 04:15 AM | 17.59 | 3.62 | 3.50 | 0.10 | -34.27 | 43.49 | 0.98 |
07/02/2023 04:20 AM | 17.61 | 3.64 | 3.80 | 0.10 | -33.41 | 42.72 | 0.98 |
07/02/2023 04:25 AM | 17.66 | 3.68 | 3.80 | 0.10 | -32.56 | 41.94 | 0.98 |
07/02/2023 04:30 AM | 17.68 | 3.70 | 3.80 | 0.10 | -31.70 | 41.16 | 0.98 |
07/02/2023 04:35 AM | 17.71 | 3.72 | 3.80 | 0.10 | -30.84 | 40.37 | 0.98 |
07/02/2023 04:40 AM | 17.76 | 3.77 | 3.80 | 0.10 | -29.97 | 39.58 | 0.98 |
07/02/2023 04:45 AM | 17.78 | 3.78 | 3.80 | 0.10 | -29.11 | 38.78 | 0.98 |
07/02/2023 04:50 AM | 17.82 | 3.82 | 3.80 | 0.10 | -28.24 | 37.97 | 0.98 |
07/02/2023 04:55 AM | 17.87 | 3.86 | 3.80 | 0.10 | -27.37 | 37.15 | 0.98 |
07/02/2023 05:00 AM | 17.91 | 3.89 | 4.10 | 0.10 | -26.50 | 36.33 | 0.98 |
07/02/2023 05:05 AM | 17.96 | 3.93 | 4.10 | 0.10 | -25.63 | 35.50 | 0.98 |
07/02/2023 05:10 AM | 18.01 | 3.98 | 4.10 | 0.10 | -24.76 | 34.67 | 0.98 |
07/02/2023 05:15 AM | 18.05 | 4.01 | 4.10 | 0.10 | -23.88 | 33.84 | 0.98 |
07/02/2023 05:20 AM | 18.10 | 4.05 | 4.10 | 0.10 | -23.01 | 33.00 | 0.98 |
07/02/2023 05:25 AM | 18.16 | 4.10 | 4.50 | 0.10 | -22.13 | 32.16 | 0.98 |
07/02/2023 05:30 AM | 18.21 | 4.14 | 4.50 | 0.10 | -21.26 | 31.31 | 0.98 |
07/02/2023 05:35 AM | 18.26 | 4.18 | 4.50 | 0.10 | -20.38 | 30.47 | 0.98 |
07/02/2023 05:40 AM | 18.31 | 4.22 | 4.50 | 0.10 | -19.51 | 29.62 | 0.98 |
07/02/2023 05:45 AM | 18.36 | 4.27 | 4.50 | 0.10 | -18.64 | 28.76 | 0.98 |
07/02/2023 05:50 AM | 18.40 | 4.30 | 4.50 | 0.10 | -17.76 | 27.91 | 0.98 |
07/02/2023 05:55 AM | 18.43 | 4.32 | 4.50 | 0.10 | -16.89 | 27.05 | 0.98 |
07/02/2023 06:00 AM | 18.45 | 4.34 | 4.10 | 0.10 | -16.02 | 26.19 | 0.98 |
07/02/2023 06:05 AM | 18.47 | 4.36 | 4.10 | 0.10 | -15.15 | 25.33 | 0.98 |
07/02/2023 06:10 AM | 18.48 | 4.36 | 4.10 | 0.10 | -14.28 | 24.47 | 0.98 |
07/02/2023 06:15 AM | 18.47 | 4.36 | 4.10 | 0.10 | -13.42 | 23.61 | 0.98 |
07/02/2023 06:20 AM | 18.42 | 4.31 | 3.80 | 0.10 | -12.55 | 22.74 | 0.98 |
07/02/2023 06:25 AM | 18.26 | 4.18 | 3.80 | 0.10 | -11.69 | 21.88 | 0.98 |
07/02/2023 06:30 AM | 17.95 | 3.93 | 3.80 | 0.10 | -10.83 | 21.01 | 0.98 |
07/02/2023 06:35 AM | 17.44 | 3.49 | 3.50 | 0.10 | -9.97 | 20.15 | 0.98 |
07/02/2023 06:40 AM | 16.82 | 2.94 | 3.50 | 0.10 | -9.12 | 19.28 | 0.98 |
07/02/2023 06:45 AM | 16.01 | 2.20 | 3.50 | 0.10 | -8.27 | 18.42 | 0.98 |
07/02/2023 06:50 AM | 15.02 | 1.27 | 3.20 | 0.10 | -7.42 | 17.55 | 0.98 |
07/02/2023 06:55 AM | 13.95 | 0.24 | 3.20 | 0.10 | -6.57 | 16.69 | 0.98 |
07/02/2023 07:00 AM | 12.81 | -0.88 | 3.20 | 0.10 | -5.73 | 15.82 | 0.98 |
DateTime | MPSAS | NELM | Temp | EncOffset | SolarAlt | LunarAlt | LunarPhase |