Contents. planet: 7 - Uranus satellites: U3-Titania : 26, U4-Oberon : 36 total number: 62 type: absolute dates: 2008-2011 observatory: 084 - Pulkovo Reference. Dement'eva A. A. (2015) Astrometric CCD Observations of the Third and the Fourth Moons of Uranus with the Normal Astrograph at the Pulkovo Observatory. Solar System Research. Vol. 49 (5). P. 360-365. 2015SoSyR__49__360D Informations. relative to: absolute reference frame: astrometric center of frame: topocenter epoch of equinox: J2000.0 time scale: UTC reduction: UCAC3 coordinates: absolute diff. refraction: no information receptor: CCD telescope: Pulkovo Normal Astrograph (D/F = 330 mm / 3467 mm) observers: Dement'eva A. A. data included in standard data file: no Comments. Format. 1. Number of satellite (N): 3 - U3, 4 - U4 2. Julian date of the moment of observation 2. Year of the moment of observation 3. Month of the moment of observation 4. Day of the moment of observation with decimals 5. Hour of right ascension (alpha, h) 6. Minute of right ascension (alpha, m) 7. Second of right ascension (alpha, s) with decimals 8. Degree of declination (delta, deg) 9. Minute of declination (delta, ' ) 10. Second of declination (delta, '' ) with decimals -------------------------------------------------------------- N JD Year Day alpha delta Month h m s deg ' '' -------------------------------------------------------------- 3 2455075.37761 2009 8 31.877610 23 43 25.795 -2 39 13.59