171P/Spahr (Record n° 20126)
Orbital period : 6.70 years
NASA/JPL elements
IAU/MPC elements
On 2018 Dec 07 07h27 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 16.8 m2 standard deviation 0.1 Aperture radius used for m2 6.7 " r (dist/Sun) 1.805 AU d (dist/Earth) 0.864 AU Right ascension 04 40 02.91 h m s Declination -02 19 44.8 ° ' " 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 m1 : 0.56'
COM Aperture radius for m2 : 6.7"
ACK MPCReport file updated 2018.12.07 18:06:03
AC2 thierrynoel38a@free.fr
NET UCAC-4
0171P KC2018 12 07.31045 04 40 02.91 -02 19 44.8 16.9 R W96
0171P KC2018 12 07.31559 04 40 02.61 -02 19 39.9 16.7 R W96
0171P KC2018 12 07.32075 04 40 02.32 -02 19 34.0 16.9 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 17x1mn 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 07 18h08m19s Observation modification date 2018 Dec 07 18h40m08s