1189 Terentia

{{Short description|Asteroid}}

{{Use dmy dates|date=October 2019}}

{{Infobox planet

| minorplanet = yes

| name = 1189 Terentia

| background = #D6D6D6

| image = 001189-asteroid shape model (1189) Terentia.png

| image_scale =

| caption = Modelled shape of Terentia from its lightcurve

| discovery_ref =

| discovered = 17 September 1930

| discoverer = G. Neujmin

| discovery_site = Simeiz Obs.

| mpc_name = (1189) Terentia

| alt_names = 1930 SG{{·}}{{mp|1935 SK|2}}
A915 TJ

| pronounced =

| named_after = Lidiya Terent'eva
{{small|(orbit computer)}}

| mp_category = main-belt{{·}}{{small|(outer)}}
Terentia

| orbit_ref =

| epoch = 4 September 2017 (JD 2458000.5)

| uncertainty = 0

| observation_arc = 101.46 yr (37,057 days)

| aphelion = 3.2681 AU

| perihelion = 2.5914 AU

| semimajor = 2.9298 AU

| eccentricity = 0.1155

| period = 5.01 yr (1,832 days)

| mean_anomaly = 103.65°

| mean_motion = {{Deg2DMS|0.1965|sup=ms}} / day

| inclination = 9.8671°

| asc_node = 275.24°

| arg_peri = 95.571°

| dimensions = {{val|55.40|14.41}} km
{{val|55.88|3.2}} km
55.94 km {{small|(derived)}}
{{val|57.23|17.09}} km
{{val|59.246|0.201}} km
{{val|61.140|1.045}} km
{{val|62.81|0.85}} km
{{val|70.90|0.51}} km

| rotation = {{val|19.30|0.01}} h
{{val|19.308|0.002}} h

| albedo = {{val|0.042|0.006}}
{{val|0.045|0.001}}
{{val|0.0473|0.0053}}
{{val|0.05|0.04}}
{{val|0.0566|0.007}}
0.0619 {{small|(derived)}}

| spectral_type = SMASS = Ch{{·}}C

| abs_magnitude = 9.80{{·}}{{val|9.84|0.26}}{{·}}9.9{{·}}9.96{{·}}10.00

}}

1189 Terentia, provisional designation {{mp|1930 SG}}, is a carbonaceous Terentian asteroid from the outer regions of the asteroid belt, approximately 56 kilometers in diameter and the namesake of its family. The asteroid was discovered by Russian astronomer Grigory Neujmin at Simeiz Observatory on 17 September 1930.

Classification

Terentia is the namesake of the Terentia family ({{small|618}}), a small asteroid family of less than a hundred known members of a carbonaceous C-type composition orbiting in the outer main-belt.

Orbit

Terentia orbits the Sun at a distance of 2.6–3.3 AU once every 5.01 years (1,832 days). Its orbit has an eccentricity of 0.12 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins at Simeiz, 5 days after its official discovery observation.

Physical characteristics

In the SMASS taxonomy, is classified as a Ch-type, a hydrated subtype of the carbonaceous C-type asteroids.

Naming

This minor planet was named after Lidiya Terent'eva (1879–1933), female collaborator at the Simeis Observatory.

References

{{reflist|30em|refs=

{{cite web

|type = 2017-03-29 last obs.

|title = JPL Small-Body Database Browser: 1189 Terentia (1930 SG)

|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001189

|publisher = Jet Propulsion Laboratory

|accessdate = 16 August 2017}}

{{cite book

|last = Schmadel | first = Lutz D.

|title = Dictionary of Minor Planet Names |publisher = Springer Berlin Heidelberg

|page = 100

|date = 2007

|isbn = 978-3-540-00238-3

|doi = 10.1007/978-3-540-29925-7_1190 |chapter = (1189) Terentia }}

{{cite web

|title = 1189 Terentia (1930 SG)

|work = Minor Planet Center

|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1189

|accessdate = 16 August 2017}}

{{cite web

|title = Asteroids and comets rotation curves – (1189) Terentia

|last = Behrend |first = Raoul

|publisher = Geneva Observatory

|url = http://obswww.unige.ch/~behrend/page3cou.html#001189

|accessdate = 16 August 2017}}

{{cite journal

|display-authors = 6

|first1 = Joseph R. |last1 = Masiero

|first2 = T. |last2 = Grav

|first3 = A. K. |last3 = Mainzer

|first4 = C. R. |last4 = Nugent

|first5 = J. M. |last5 = Bauer

|first6 = R. |last6 = Stevenson

|first7 = S. |last7 = Sonnett

|date = August 2014

|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos

|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M

|journal = The Astrophysical Journal

|volume = 791

|issue = 2

|page = 11

|bibcode = 2014ApJ...791..121M

|doi = 10.1088/0004-637X/791/2/121

|arxiv = 1406.6645

|access-date= 16 August 2017}}

{{Cite book

|first1 = D. |last1 = Nesvorný

|first2 = M. |last2 = Broz

|first3 = V. |last3 = Carruba

|date = December 2014

|chapter = Identification and Dynamical Properties of Asteroid Families

|title = Asteroids IV

|pages = 297–321

|bibcode = 2015aste.book..297N

|doi = 10.2458/azu_uapress_9780816532131-ch016

|arxiv = 1502.01628

|isbn = 9780816532131}}

{{cite web

|title = LCDB Data for (1189) Terentia

|publisher = Asteroid Lightcurve Database (LCDB)

|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1189%7CTerentia

|accessdate = 16 August 2017}}

{{cite journal

|first1 = E. F. |last1 = Tedesco

|first2 = P. V. |last2 = Noah

|first3 = M. |last3 = Noah

|first4 = S. D. |last4 = Price

|date = October 2004

|title = IRAS Minor Planet Survey V6.0

|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab

|journal = NASA Planetary Data System

|volume = 12

|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0

|bibcode = 2004PDSS...12.....T

|accessdate = 22 October 2019}}

{{cite journal

|display-authors = 6

|first1 = Fumihiko |last1 = Usui

|first2 = Daisuke |last2 = Kuroda

|first3 = Thomas G. |last3 = Müller

|first4 = Sunao |last4 = Hasegawa

|first5 = Masateru |last5 = Ishiguro

|first6 = Takafumi |last6 = Ootsubo

|first7 = Daisuke |last7 = Ishihara

|first8 = Hirokazu |last8 = Kataza

|first9 = Satoshi |last9 = Takita

|first10 = Shinki |last10 = Oyabu

|first11 = Munetaka |last11 = Ueno

|first12 = Hideo |last12 = Matsuhara

|first13 = Takashi |last13 = Onaka

|date = October 2011

|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey

|journal = Publications of the Astronomical Society of Japan

|volume = 63

|issue = 5

|pages = 1117–1138

|bibcode = 2011PASJ...63.1117U

|doi = 10.1093/pasj/63.5.1117

|doi-access=

}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1189 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])

{{cite journal

|display-authors = 6

|first1 = A. |last1 = Mainzer

|first2 = T. |last2 = Grav

|first3 = J. |last3 = Masiero

|first4 = E. |last4 = Hand

|first5 = J. |last5 = Bauer

|first6 = D. |last6 = Tholen

|first7 = R. S. |last7 = McMillan

|first8 = T. |last8 = Spahr

|first9 = R. M. |last9 = Cutri

|first10 = E. |last10 = Wright

|first11 = J. |last11 = Watkins

|first12 = W. |last12 = Mo

|first13 = C. |last13 = Maleszewski

|date = November 2011

|title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results

|journal = The Astrophysical Journal

|volume = 741

|issue = 2

|page = 25

|bibcode = 2011ApJ...741...90M

|doi = 10.1088/0004-637X/741/2/90

|arxiv = 1109.6407}}

{{cite journal

|display-authors = 6

|first1 = Joseph R. |last1 = Masiero

|first2 = A. K. |last2 = Mainzer

|first3 = T. |last3 = Grav

|first4 = J. M. |last4 = Bauer

|first5 = R. M. |last5 = Cutri

|first6 = C. |last6 = Nugent

|first7 = M. S. |last7 = Cabrera

|date = November 2012

|title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids

|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M

|journal = The Astrophysical Journal Letters

|volume = 759

|issue = 1

|page = 5

|bibcode = 2012ApJ...759L...8M

|doi = 10.1088/2041-8205/759/1/L8

|arxiv = 1209.5794

|access-date= 16 August 2017}}

{{cite journal

|display-authors = 6

|first1 = C. R. |last1 = Nugent

|first2 = A. |last2 = Mainzer

|first3 = J. |last3 = Masiero

|first4 = J. |last4 = Bauer

|first5 = R. M. |last5 = Cutri

|first6 = T. |last6 = Grav

|first7 = E. |last7 = Kramer

|first8 = S. |last8 = Sonnett

|first9 = R. |last9 = Stevenson

|first10 = E. L. |last10 = Wright

|date = December 2015

|title = NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos

|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N

|journal = The Astrophysical Journal

|volume = 814

|issue = 2

|page = 13

|bibcode = 2015ApJ...814..117N

|doi = 10.1088/0004-637X/814/2/117

|arxiv = 1509.02522

|access-date= 16 August 2017}}

{{cite journal

|display-authors = 6

|first1 = C. R. |last1 = Nugent

|first2 = A. |last2 = Mainzer

|first3 = J. |last3 = Bauer

|first4 = R. M. |last4 = Cutri

|first5 = E. A. |last5 = Kramer

|first6 = T. |last6 = Grav

|first7 = J. |last7 = Masiero

|first8 = S. |last8 = Sonnett

|first9 = E. L. |last9 = Wright

|date = September 2016

|title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos

|journal = The Astronomical Journal

|volume = 152

|issue = 3

|page = 12

|bibcode = 2016AJ....152...63N

|doi = 10.3847/0004-6256/152/3/63

|arxiv = 1606.08923

|doi-access = free }}

{{Cite journal

|author = Stephens, R. D.

|date = September 2002

|title = Photometry of 973 Aralia, 1189 Terentia, 1040 Klumpkea, and 1998 Titius

|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2002MPBu...29...47S

|journal = The Minor Planet Bulletin

|volume = 29

|pages = 47–48

|bibcode = 2002MPBu...29...47S

|access-date= 16 August 2017}}

{{cite journal

|display-authors = 6

|first1 = Peter |last1 = Veres

|first2 = Robert |last2 = Jedicke

|first3 = Alan |last3 = Fitzsimmons

|first4 = Larry |last4 = Denneau

|first5 = Mikael |last5 = Granvik

|first6 = Bryce |last6 = Bolin

|first7 = Serge |last7 = Chastel

|first8 = Richard J. |last8 = Wainscoat

|first9 = William S. |last9 = Burgett

|first10 = Kenneth C. |last10 = Chambers

|first11 = Heather |last11 = Flewelling

|first12 = Nick |last12 = Kaiser

|first13 = Eugen A. |last13 = Magnier

|first14 = Jeff S. |last14 = Morgan

|first15 = Paul A. |last15 = Price

|first16 = John L. |last16 = Tonry

|first17 = Christopher |last17 = Waters

|date = November 2015

|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results

|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V

|journal = Icarus

|volume = 261

|pages = 34–47

|bibcode = 2015Icar..261...34V

|doi = 10.1016/j.icarus.2015.08.007

|arxiv = 1506.00762

|access-date= 16 August 2017}}

}}