C/2017 O1 (ASASSN) (Record n° 18386)
Orbital period : 6932.00 years
NASA/JPL elements
IAU/MPC elements
On 2017 Oct 15 03h11 UT by Patrick Ditz
(Copyright Patrick Ditz)Nuclear magnitude (m2) 15.2 m2 standard deviation 0.1 Aperture radius used for m2 7.5 " Coma diameter 7 ' Tail length 0.41 ° Tail position angle
(PA) 239 ° r (dist/Sun) 1.499 AU d (dist/Earth) 0.721 AU Right ascension 04 41 49.74 h m s Declination +51 16 08.5 ° ' " MPC report COD K97
CON P. Ditz [patrick.ditz@wanadoo.fr]
OBS P. Ditz
MEA P. Ditz
TEL 0.20-m f/7.4 reflector + CCD
ACK Report C/2017O1 2017/10/15
AC2 patrick.ditz@wanadoo.fr
NET UCAC-4
CK17O010 C2017 10 15.13263 04 41 49.74 +51 16 08.5 15.2 N K97
CK17O010 C2017 10 15.13988 04 41 50.17 +51 16 38.5 15.2 N K97
CK17O010 C2017 10 15.15210 04 41 50.88 +51 17 29.0 15.1 N K97
Instrumental configuration Config1 Instrument T200 F/D 7.4 Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 1480 mm Instrument focale/diameter 7.4 Filter(s) L Camera ATIK 460 EX Sensor CCD Sensor size 12.5x10.0 mm2 Sensor pixels number 2749x2199 Sensor temperature -15 °C Binning 2x2 Mount VMA300 Exposure total time 1720 s Exposure details 43 x40 s Moon phase 139 ° Moon elongation 71 ° Air mass 1.0 Observatory MPC code K97 Location 67130 Freconrupt Reference stars catalog UCAC-4
Used softwares PRISM Image resize factor 0.728 Resulting picture sampling (scale) 1.26 "/pix Image processing PRISM Remarks or comments La longueur de la queue cométaire peut être supérieure à celle donnée ici, car elle va jusqu'au bord du champ. Observation submission date 2017 Oct 18 11h56m38s Observation modification date 2017 Oct 18 12h13m02s