| Type | |
| Period (d) | 0.017029 |
| Mag | 13.0 - 17.5 |
| a(2000) | 13h 48 m 55.29 s |
| d(2000) | +07 57 34.8 |
60 s exposure using the 0.32 m f/4.8 and ST-7E detector.
C1 = TIC0900-01176
C2 = GSC 0090001047
C3 = GSC 0090001090
|
60 s exposure using the 0.32 m f/4.8 and ST-7E detector. C1 = TIC0900-01176 |
| Data from evening of March 22/23. Cold (T=-23C) with some cloud and bright aurora. Fair - poor conditions. |  |
| Data from evening of April 20/21. Cool (T=-10C) with very good conditions. Exp-time = 120 s. C2 = GSC 0090001047, C3 = GSC 0090001090. Typical scatter (C3-C2) < 0.009 mag. |  |
| Data from evening of May 10/11. Very good conditions at start but terminated by cloud approx 90 minutes later.. Exp-time = 120 s. C2 = GSC 0090001047, C3 = GSC 0090001090. Typical scatter (C3-C2) = 0.019 mag. CR Boo is ramping up strongly at approx 0.2 mag/hr! A comparison of c4-c2 shows a steady brightness for a comparable brightness field star - the ramping appears to be genuine. |  |
| Data from evening of May 14/15. Very good conditions at start but terminated by cloud approx 2 hours later.. Exp-time = 120 s. C2 = GSC 0090001047, C3 = GSC 0090001090. Typical scatter (C3-C2) = 0.008 mag. |  |
| Evening of May 17/18 - Generally good conditions, some high cloud and light breeze. Scatter C3-C2 approx 0.015 mag. Variation in program star at end of evening looks suspect! |  |