Type B-V Effective Temp V III V III O5 -0.32 -0.32 47000 B0 -0.30 -0.30 30500 B5 -0.16 -0.16 15000 A0 0.00 0.00 9500 A5 0.15 0.15 8300 F0 0.29 0.27 7300 F5 0.42 0.45 6600 G0 0.58 0.65 5900 5400 G5 0.69 0.84 5600 4800 K0 0.85 1.03 5100 4400 K5 1.16 1.45 4200 3600 M0 1.42 1.57 3700 3300 M5 1.61 1.80 3000 2700
Days from new moon | Sky Brightness | ||||
---|---|---|---|---|---|
U | B | V | R | I | |
0 | 22.0 | 22.7 | 21.8 | 20.9 | 19.9 |
3 | 21.5 | 22.4 | 21.7 | 20.8 | 19.9 |
7 | 19.9 | 21.6 | 21.4 | 20.6 | 19.7 |
10 | 18.5 | 20.7 | 20.7 | 20.3 | 19.5 |
14 | 17.0 | 19.5 | 20.0 | 19.9 | 19.2 |