Suttungr (moon)

{{Short description|Moon of Saturn}}

{{Infobox planet

| name = Suttungr

| image = Suttungr-discovery-CFHT.gif

| image_scale =

| caption = Discovery images of Suttungr (circled) taken by the CFHT in September 2000

| mpc_name = Saturn XXIII

| alt_names = S/2000 S 12

| pronounced = {{IPAc-en|ˈ|s|ʊ|t|ʊ|ŋ|ər}}{{dict.com|Suttung}}

| adjective = Suttung {{IPAc-en|ˈ|s|ʊ|t|ʊ|ŋ}},
Suttungian {{IPAc-en|s|ʊ|ˈ|t|ʊ|ŋ|i|ə|n}}

| named_after = Suttungr

| discovered = 2000

| orbit_ref = [https://sites.google.com/carnegiescience.edu/sheppard/moons/saturnmoons S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line]

| semimajor = {{val|19459000|u=km}}

| inclination = 175.8°

| eccentricity = 0.114

| period = −1016.7 days

| satellite_of = Saturn

| group = Norse group

| physical_ref =

| mean_diameter = {{val|7|50|30|+errend=%|-errend=%|u=km}}

| rotation = {{val|7.67|0.02}} h

| albedo = 0.06 (assumed)

| spectral_type = C

| magnitude = 23.9

| abs_magnitude = 14.5

}}

Suttungr {{IPAc-en|ˈ|s|ʊ|t|ʊ|ŋ|ər}}, or Saturn XXIII, is a natural satellite of Saturn. It was discovered by Brett J. Gladman, et al. in 2000, and given the temporary designation S/2000 S 12. It was named for Suttungr in Norse mythology, a Jötunn or giant who once owned the mead of poetry.

Suttungr is about 7 kilometres in diameter, and orbits Saturn at an average distance of 19,667 Mm in 1029.703 days. It may have formed from debris knocked off Phoebe. The Suttung orbit is retrograde, at an inclination of 174° to the ecliptic (151° to Saturn's equator) and with an eccentricity of 0.131. Its rotation period is {{val|7.67|0.02}} hours, and like Albiorix its light curve exhibits two minima at certain angles, and three minima at others.{{cite conference

|title=Cassini Observations of Saturn's Irregular Moons

|url=https://www.hou.usra.edu/meetings/lpsc2019/pdf/2654.pdf

|first1=T. |last1=Denk

|first2=S. |last2=Mottola

|conference=50th Lunar and Planetary Science Conference

|publisher=Lunar and Planetary Institute

|number=2132

|year=2019}} Having a similar gray color and orbit as Thrymr, the two moons may be members of the same dynamical family.{{cite book |last1=Denk |first1=Tilmann |url= |title=Enceladus and the Icy Moons of Saturn |last2=Mottola |first2=Stefano |last3=Tosi |first3=Frederico |last4=Bottke |first4=William F. |last5=Hamilton |first5=Douglas P. |publisher=The University of Arizona Press |year=2018 |isbn=9780816537075 |editor1=Schenk, P.M. |series=Space Science Series |volume=322 |location=Tucson, AZ |pages=409–434 |chapter=The Irregular Satellites of Saturn |bibcode=2018eims.book..409D |doi=10.2458/azu_uapress_9780816537075-ch020 |editor2=Clark, R.N. |editor3=Howett, C.J.A. |editor4=Verbiscer, A.J. |editor5=Waite, J.H. |chapter-url=https://tilmanndenk.de/wp-content/uploads/DenkEtAl2018_IrregularMoons.pdf}}

Its name was announced in its oblique form Suttung in [http://cbat.eps.harvard.edu/iauc/08100/08177.html IAU Circular 8177] {{webarchive |url=https://web.archive.org/web/20080709055841/http://cfa-www.harvard.edu/iauc/08100/08177.html |date=2008-07-09}}. However, the IAU Working Group on Planetary System Nomenclature later decided to add the nominative suffix -r to the base form Suttung.