SYNOPTICAL TABLES.
351
{|style="border-collapse:collapse;border:1px solid black;margin:0 auto 0 auto;"
|+URANUS SATELLITES.
|-style="border-bottom:1px solid black;font-size:83%;text-align:center;vertical-align:middle;"
|style="border-right:1px solid black;"|No.
|style="border-right:1px solid black;"|Name.
|style="border-right:1px solid black;" colspan=4| Sidereal
Revolution.
|style="border-right:1px solid black;"|Mean
Apparent
Distance.
|style="border-right:1px solid black;"|Discoverer,
|style="border-right:1px solid black;"|Year of
Discovery.
|-
|style="border-right:1px solid black;"|
|style="border-right:1px solid black;"|
|d.||h.||m.||style="border-right:1px solid black;"|s.
|style="border-right:1px solid black;"|″
|style="border-right:1px solid black;"|
|style="border-right:1px solid black;"|
|-
|style="border-right:1px solid black;"|1
|style="border-right:1px solid black;"|Ariel
|style="text-align:right;"|2
|style="text-align:right;"|12
|style="text-align:right;"|29
|style="border-right:1px solid black;text-align:right;"|21
|style="border-right:1px solid black;text-align:right;"|13.54
|style="border-right:1px solid black;"|Lassell
|style="border-right:1px solid black;"|1851
|-
|style="border-right:1px solid black;"|2
|style="border-right:1px solid black;"|Umbriel
|style="text-align:right;"|4
|style="text-align:right;"|3
|style="text-align:right;"|28
|style="text-align:right;border-right:1px solid black;"|8
|style="text-align:right;border-right:1px solid black;"|19.28
|style="border-right:1px solid black;"|Lassell
|style="border-right:1px solid black;"|1851
|-
|style="border-right:1px solid black;"|3
|style="border-right:1px solid black;"|Titania
|style="text-align:right;"|8
|style="text-align:right;"|16
|style="text-align:right;"|56
|style="text-align:right;border-right:1px solid black;"|31
|style="text-align:right;border-right:1px solid black;"|31.44
|style="border-right:1px solid black;"|Herschel
|1787
|-
|style="border-right:1px solid black;"|4
|style="border-right:1px solid black;"|Oberon
|style="text-align:right;"|13
|style="text-align:right;"|11
|style="text-align:right;"|7
|style="text-align:right;border-right:1px solid black;"|13
|style="text-align:right;border-right:1px solid black;"|42.87
|style="border-right:1px solid black;"|Herschel
|style="border-right:1px solid black;"|1787
|}
Additional satellites seen by Herschel, but not re-observed, | 4 |
Direction of movement of satellites | retrograde |
Inclination of the orbits of Titania and Oberon to ecliptic, | 78° 58′ |
Distance from the planet -when satellites become invisible (Herschel), | 14″ |
IMagnifying power required for sustained view, | 300 |
Volume (Earth's = 1), | 76.6 |
Mass (Earth's = 1), . | 18.900 |
Density (Earth's = 1), | .321 |
Diameter (Earth's = 1), | 4.246 |
Diameter in miles, | 33,610 |
Diameterapparent, mean, | 2.″4 |
Gravity (Earth = 1), | 1.36 |
Gravity bodies fall in one second, in feet, | 21.8 |
Light and heat from Sun, perihelion, | .0011 |
Light and heat from Sun, aphelion, | .0011 |
Year in which Adams computed its place within 2 degrees, | 1845 |
Year in which Leverrier computed its place, | 1846 |
First observed by M. Galle, from Leverrier's indications, 23d Sept., | 1846 |