47P/Ashbrook–Jackson

{{Infobox comet

| name=47P/Ashbrook–Jackson

| image= Comet Ashbrook-Jackson U65z0901r c0f.jpg

| discoverer=Joseph Ashbrook United States
Cyril V. Jackson South Africa

| discovery_date=August 26, 1948

| designations=1948 IX; 1956 II; 1963 VI;
1971 III; 1978 XIV; 1986 II;
1993 XIII

| epoch=March 6, 2006

| Jupiter_moid = {{cvt|0.117|AU|km}}

| semimajor=4.1 AU

| perihelion=2.759 AU

| aphelion=5.44 AU

| eccentricity=0.3269

| period=8.301 a

| inclination= 13.2252°

| last_p=June 10, 2017{{mpc|47p}}
January 31, 2009

| next_p=2025-Oct-28

}}

47P/Ashbrook–Jackson is a periodic comet in the Solar System.

The comet nucleus is estimated to be 5.6 kilometers in diameter.

History

Comet 47P/Ashbrook–Jackson was discovered by Joseph Ashbrook and Cyril Jackson in 1948.

Name

47p is in the name because it was the 47th periodic comet discovered. Ashbrook–Jackson is the names of its two discoverers.

Apparitions

October 28, 2025
June 10, 2017
January 31, 2009
January 6, 2001
July 14, 1993
January 24, 1986
August 19, 1978
March 13, 1971
October 2, 1963
April 6, 1956
October 4, 1948

References

{{Reflist

| refs =

{{cite web

|type=2010-01-21 last obs

|title=JPL Small-Body Database Browser: 47P/Ashbrook-Jackson

|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=47P

|publisher=Jet Propulsion Laboratory

|access-date=2010-03-01}}

{{cite web

|title=Horizons Batch for 47P/Ashbrook-Jackson (90000557) on 2025-Oct-28

|publisher=JPL Horizons

|type=Perihelion occurs when rdot flips from negative to positive

|url=https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=%27DES%3D47P%3BCAP%27&START_TIME=%272025-Oct-25%27&STOP_TIME=%272025-Oct-31%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2719%27

|archive-url=https://web.archive.org/web/20220627115111/https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%2790000557%27&START_TIME=%272025-Oct-25%27&STOP_TIME=%272025-Oct-31%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2719%27

|archive-date=2022-06-27

|url-status=live

|accessdate=2023-07-06}} (JPL#K257/4 Soln.date: 2023-May-04)

}}

External links

[http://www.aerith.net/comet/catalog/0047P/index.html 47P/Ashbrook-Jackson] – Seiichi Yoshida @ aerith.net
[http://cometography.com/pcomets/047p.html 47P at Kronk's Cometography] / [http://cometography.com/pergroup1.html Periodic comets]
{{JPL small body|name=47P/Ashbrook-Jackson|id=1000003}}

Category:Periodic comets

0047

047P

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