256 Walpurga

{{Short description|Main belt asteroid}}

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

{{Infobox planet

| minorplanet=yes

| background=#D6D6D6

| name=256 Walpurga

| discoverer=Johann Palisa

| discovered=3 April 1886

| mpc_name=(256) Walpurga

| alt_names=A886 GA, 1951 VJ

| named_after=Saint Walpurga

| pronounced={{IPAc-en|v|æ|l|'|p|ɜːr|g|ə}}

| mp_category=Main belt

| epoch=31 July 2016 (JD 2457600.5)

| semimajor={{Convert|2.99972|AU|Gm|abbr=on}}

| perihelion={{Convert|2.79984|AU|Gm|abbr=on}}

| aphelion={{Convert|3.19960|AU|Gm|abbr=on|lk=on}}

| eccentricity=0.066634

| period=5.20 yr (1897.7 d)

| inclination=13.3281°

| asc_node=182.937°

| arg_peri=46.5713°

| mean_anomaly=352.098°

| dimensions={{val|63.34|2.7|ul=km}}

| mass=

| density=

| rotation={{Convert|16.664|h|d|abbr=on|lk=on}}
16.64 h

| spectral_type=

| abs_magnitude=9.9

| albedo={{val|0.0530|0.005}}

| mean_motion={{Deg2DMS|0.189707|sup=ms}} / day

| orbit_ref={{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=256;cad=1 |title=256 Walpurga |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=11 May 2016}}

| observation_arc=130.04 yr (47496 d)

| uncertainty=0

}}

256 Walpurga is a large Main belt asteroid. It was discovered by Johann Palisa on 3 April 1886 in Vienna and was named after Saint Walburga.

Photometric observations at the Oakley Observatory in Terre Haute, Indiana, during 2007 were used to build a light curve for this asteroid. The asteroid displayed a rotation period of 16.64 ± 0.02 hours and a brightness variation of 0.38 ± 0.02 in magnitude.

References

{{Reflist|refs=

{{Citation

|first1 = Heath

|last1 = Shipley

|first2 = Alex

|last2 = Dillard

|first3 = Jordan

|last3 = Kendall

|first4 = Matthew

|last4 = Reichert

|first5 = Jason

|last5 = Sauppe

|first6 = Nelson

|last6 = Shaffer

|first7 = Thomas

|last7 = Kleeman

|first8 = Richard

|last8 = Ditteon

|display-authors = 1

|title = Asteroid Lightcurve Analysis at the Palmer Divide Observatory: September 2007

|work = The Minor Planet Bulletin

|volume = 35

|issue = 3

|pages = 99–101

|date = September 2008

|url = http://www.minorplanet.info/MPB/MPB_35-3.pdf

|accessdate = 2013-03-23

|postscript = .

|bibcode = 2008MPBu...35...99S

|url-status = dead

|archiveurl = https://web.archive.org/web/20130602215656/http://www.minorplanet.info/MPB/MPB_35-3.pdf

|archivedate = 2013-06-02

}}

}}