Enceladus - 2024 ACF Winter

Question

Four linear depressions known as “tiger stripes” on this body’s south pole are thought to indicate the presence of cryovolcanism. For 10 points each:

[10h] Name this most reflective body in the Solar System, with a geometric albedo of 1.38. This body’s 2-to-1 orbital resonance with Dione (“di-OH-nee”) causes it to experience geologic activity from tidal heating.

ANSWER: Enceladus

[10e] Geysers on Enceladus supply some of the material that makes up the E ring of this planet. Enceladus orbits this planet along with the moon Titan.

ANSWER: Saturn

[10m] Enceladus’s resonance with Dione forces its orbit to have a value of about 0.0047 for this parameter. This dimensionless quantity is greater than one for a hyperbolic escape orbit.

ANSWER: orbital eccentricity [accept forced eccentricity]

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Summary


2024 ACF Winter at Clemson	2024-11-16	Y	9	20.00	89%	89%	22%
2024 ACF Winter at Clemson	2024-11-16	Y	7	15.71	100%	14%	43%
2024 ACF Winter at Ohio State	2024-11-16	Y	1	20.00	100%	100%	0%

Data


Alabama A	Auburn B	0	10	10	20
Clemson A	South Carolina A	0	10	10	20
Georgia A	Auburn C	10	10	10	30
Georgia Tech D	Georgia Tech A	0	10	0	10
Georgia Tech D	Tusculum A	10	10	0	20
Georgia Tech D	Georgia Tech A	0	10	10	20
Georgia Tech D	Tusculum A	10	10	10	30
Georgia Tech F	Georgia Tech B	0	10	0	10
Georgia Tech F	Georgia Tech E	0	10	0	10
Georgia Tech F	Georgia Tech B	0	10	10	20
Georgia Tech F	Georgia Tech E	0	10	10	20
Tennesse B	Georgia Tech C	0	10	0	10
Tennesse B	Georgia Tech A	0	10	0	10
Tennesse B	Georgia Tech C	0	10	10	20
Tennesse B	Georgia Tech A	0	10	10	20
Georgia Tech E	Georgia A	10	10	10	30
Tennesse A	Auburn C	0	10	0	10
Tennesse A	Auburn B	0	10	0	10
Tennesse A	Auburn C	0	10	10	20
Tennesse A	Auburn B	0	10	10	20
Emory B	Tusculum A	0	0	10	10
Emory B	Clemson A	10	0	10	20
Emory B	Tusculum A	0	0	0	0
Emory B	Clemson A	10	0	0	10
Auburn A	South Carolina A	10	10	0	20
Emory A	Georgia Tech B	0	10	0	10
Emory B	Tusculum A	0	10	10	20
Emory B	Clemson A	10	10	10	30
Emory B	Tusculum A	0	10	0	10
Emory B	Clemson A	10	10	0	20
Tennesse B	Georgia Tech C	0	10	0	10
Tennesse B	Georgia Tech A	0	10	0	10
Tennesse B	Georgia Tech C	0	10	10	20
Tennesse B	Georgia Tech A	0	10	10	20
Georgia Tech F	Georgia Tech B	0	10	0	10
Georgia Tech F	Georgia Tech E	0	10	0	10
Georgia Tech F	Georgia Tech B	0	10	10	20
Georgia Tech F	Georgia Tech E	0	10	10	20
Tennesse A	Auburn C	0	10	0	10
Tennesse A	Auburn B	0	10	0	10
Tennesse A	Auburn C	0	10	10	20
Tennesse A	Auburn B	0	10	10	20
Georgia Tech D	Georgia Tech A	0	10	0	10
Georgia Tech D	Tusculum A	10	10	0	20
Georgia Tech D	Georgia Tech A	0	10	10	20
Georgia Tech D	Tusculum A	10	10	10	30
Michigan A	Ohio State A (UG)	0	10	10	20