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Comments: Observer: Cory Schmitz
2020/09/06 21:02:54 (UT)
CM1=3.1
12" / 304mm RC : ZWO ASI290MM, ZWO CH4 890nm/20nm filter
Seeing 4/10 Trans 5/10
Comments:
Christopher Go put out an alert to please monitor CMII:277 for a possible bright area, so I did. It was cloudy and I had to shoot through moving cloud cover at high gain, but managed three video captures to derotate.
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Observation 1 |
|
Feature(s) |
GRS
Chris Go's reported area
|
Filter(s) |
ch4 |
Date |
2020-09-06 21:02:54 |
Julian day |
2459099.376388889 |
System I |
3.5305734° |
System II |
300.0389° |
System III |
31.072197° |
Illumination |
99.299995% |
Phase angle |
9.399999618530273° |
Solar longitude |
16.4° |
Eq. diameter |
43.66″ |
Derotation |
21.3 min |