C/2017 M4 (ATLAS) (Record n° 19473)
NASA/JPL elements
IAU/MPC elements
On 2018 Aug 11 20h54 UT by Lionel Rousselot
(Copyright Lionel Rousselot)Nuclear magnitude (m2) 15.8 Aperture radius used for m2 5.8 " r (dist/Sun) 3.588 AU d (dist/Earth) 3.320 AU Right ascension 16 31 33.78 h m s Declination +29 11 41.2 ° ' " Instrument Skywatcher 254/1200 Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 1080 mm Instrument focale/diameter 4.25 Filter(s) None Camera ZWO 1600 monochrome Sensor CCD Sensor temperature -20 °C Binning 2x2 Mount AZ eq6 Motorization Yes Autoguide Yes Exposure total time 1200 s Exposure details 60*20s Sky transparency (naked eye max mag) 5 Seeing 4 Moon phase 180 ° Location vierzon france Reference stars catalog UCAC-4 Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.45 "/pix Observation submission date 2018 Aug 12 23h01m02s