171P/Spahr (Record n° 20171)
Orbital period : 6.70 years
NASA/JPL elements
IAU/MPC elements
On 2018 Dec 14 07h35 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 17.2 m2 standard deviation 0.1 Aperture radius used for m2 6.7 " r (dist/Sun) 1.794 AU d (dist/Earth) 0.858 AU Right ascension 04 33 50.00 h m s Declination -00 00 26.5 ° ' " MPC report COD W96
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, J.-B. de Vanssay, T. Noel
MEA T. Noel
TEL 0.4-m f/5 Ritchey-Chretien + CCD
COM Aperture radius for m2 : 6.7"
ACK MPCReport file updated 2018.12.14 16:14:18
AC2 thierrynoel38a@free.fr
NET UCAC-4
0171P KC2018 12 14.31577 04 33 50.00 -00 00 26.5 17.1 R W96
0171P KC2018 12 14.32624 04 33 49.47 -00 00 14.3 17.2 R W96
Instrument Marcon RC 400 Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2000 mm Instrument focale/diameter 5 Camera APOGEE Sensor CCD Sensor temperature -25 °C Binning 2x2 Mount VMA 200 Autoguide No Exposure details 12x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.12 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop) Observation submission date 2018 Dec 14 16h19m23s Observation modification date 2018 Dec 14 20h29m18s