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C/2017 M4 (ATLAS)


NASA/JPL elements
IAU/MPC elements


On 2018 Jun 18 21h54 UT by Marc Deldem


(Copyright Marc Deldem)

Nuclear magnitude (m2)15.5
m2 standard deviation0.1
Aperture radius used for m26.8 "
r (dist/Sun) 3.826 AU
d (dist/Earth) 3.343 AU
Right ascension18 00 56.10 h m s
Declination+45 26 33.7 ° ' "
MPC report
COD K22
CON M. Deldem [marc.deldem@free.fr]
OBS M. Deldem
MEA M. Deldem
TEL 0.20-m f/10 Schmidt-Cassegrain + CCD + f/7.4 focal reducer
ACK MPCReport file updated 2018.06.21 21:39:20
AC2 marc.deldem@free.fr
NET UCAC-4
    CK17M040 KC2018 06 18.91218 18 00 56.10 +45 26 33.7          15.5 R      K22
    CK17M040 KC2018 06 18.92818 18 00 53.99 +45 26 26.5          15.5 R      K22
    CK17M040 KC2018 06 18.96846 18 00 48.59 +45 26 07.2          15.4 R      K22
InstrumentC8
Instrument typeSchmidt-Cassegrain
Instrument aperture (0=naked eye)200 mm
Instrument focale length1640 mm
Instrument focale/diameter8.1
Filter(s)None
CameraSBIG ST8-XME
SensorCCD
Sensor size13.8x9.2 mm2
Sensor pixels number1530x1020
Sensor temperature-15 °C
Binning1x1
MountG11
MotorizationYes
AutoguideYes
Exposure total time3720 s
Exposure details62x1mn
Air mass1.03
Observatory MPC codeK22
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.13 "/pix
Image processingDDP
Observation submission date2018 Jun 21 21h49m15s
Observation modification date2018 Jun 21 21h52m21s

(Record n° 19256)

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