Observation bulletin for RR LIBRAE, JD 2453189
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Sky image of variable star RR-LIB (RR LIBRAE) on the night of JD2453189. Identification sketch for variable star RR-LIB (RR LIBRAE) on the night of JD2453189.

Result in AAVSO format:

1550-18 RR LIB    2453189.3778 11.06 K CCDV115,95,125 AVSOMAT CXR                                                                                  


Using Tycho-VT reference stars, transformed to Johnson:

NAME    MAG        GSC-1 ID        GSC-2 ID
2C    11.50    GSC6191-0025      S221102093
W      9.55    GSC6191-0405      S221102087
3I    12.57    GSC6191-0327      S221102022


FITS HEADER:

RESOLUTION (bit/pixel): 
IMAGE SIZE:  x 
DEG PER PIXEL:  x 
CCD BINNING: 2 x 2
SENSOR TEMP (K): 238.9
EXP TIME (s): 10.000

OBJECT: rrlib
JDATE EXP START: 2453189.37782132
RA: 15:56:23.70
DEC: -18:18:14.9
EQUINOX: 

OBSERVER: R.Corlan
LATITUDE: 44:25:50.0
LONGITUDE: -26:06:50.0
ALTITUDE: 75.0

INSTRUMENT: cpx3m
FILTER: v
TELESCOPE: SCT
FOCUS: Cassergrain
FOCAL LENGTH (cm): 200.0
APERTURE (cm): 30.0

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