Satellites of Uranus
نویسندگان
چکیده
منابع مشابه
Near-Infrared Spectrophotometry of the Satellites and Rings of Uranus
New spectrophotometry from 1.5 to 2.5 /zm is reported for the Uranian satellites Titania, Oberon, and Umbriel. A spectrum of the rings of Uranus from 2.0 to 2.4/zm is also reported. No evidence is found for frost covering the surface of the ring material, consistent with the low albedo of the rings (P~ = 0.03) previously reported by Nicholson and Jones (1980). The surfaces of the satellites are...
متن کاملPhotometry of Irregular Satellites of Uranus and Neptune
We present BVR photometric colors of six Uranian and two Neptunian irregular satellites, collected using the Magellan Observatory (Las Campanas, Chile) and the Keck Observatory, (Manua Kea, Hawaii). The colors range from neutral to light red, and like the Jovian and the Saturnian irregulars (Grav et al. 2003a) there is an apparent lack of the extremely red objects found among the Centaurs and K...
متن کاملMulticolor Photometry of the Uranus Irregular Satellites Sycorax and Caliban
We report on accurate BVRI photometry for the two Uranus irregular satellites Sycorax and Caliban. We derive colours, showing that Sycorax is bluer than Caliban. Our data allows us to detect a significant variability in the Caliban’s light-curve, which suggests an estimated period of about 3 hours. Despite it is the brighter of the two bodies, Sycorax does not display a strong statistically sig...
متن کاملAn observation of a mutual event between two satellites of Uranus
We present observations of the occultation of Umbriel by Oberon on 4 May, 2007. We believe this is the first observed mutual event between satellites of Uranus. Fitting a simple geometric model to the lightcurve, we measure the mid-event time with a precision of 4 seconds. We assume previously measured values for the albedos of the two satellites (Karkoschka 2001), and measure the impact parame...
متن کاملUltra Deep Survey for Irregular Satellites of Uranus: Limits to Completeness
We present a deep optical survey of Uranus’ Hill sphere for small satellites. The Subaru 8-m telescope was used to survey about 3.5 square degrees with a 50% detection efficiency at limiting red magnitude mR = 26.1 mag. This magnitude corresponds to objects that are about 7 km in radius (assuming an albedo of 0.04). We detected (without prior knowledge of their positions) all previously known o...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1849
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/9.5.105