1551 Argelander

Argelander is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner main-belt at a distance of 2.2–2.6 AU once every 3 years and 9 months (1,353 days; semi-major axis of 2.39 AU). Its orbit has an eccentricity of 0.07 and an inclination of 4° with respect to the ecliptic. The body's observation arc begins with its first observation as {{mp|1930 BL}} at Heidelberg Observatory in January 1930, or 8 years prior to its official discovery observation at Turku.

This minor planet was named after Friedrich Wilhelm Argelander (1799–1875), author of the famous Bonner Durchmusterung and 19th-century head of the ancient observatory at Turku and Bonn {{Obscode|520}}. The official {{MoMP|1551|naming citation}} was published by the Minor Planet Center on 30 January 1964 ({{small|M.P.C. 2278}}). The lunar crater Argelander is also named after him.

Argelander is an assumed S-type asteroid.

In August 2017, a rotational lightcurve of Argelander was obtained from photometric observations at the Chilean Cerro Tololo Inter-American Observatory using the SARA South Telescope. Lightcurve analysis gave a rotation period of {{val|4.063|0.006}} hours and a brightness variation of 0.48 magnitude ({{small|U=2+}}). In January 2012, astronomers at the Palomar Transient Factory had also determined a period of {{val|4.061|0.0023}} with an amplitude of 0.41 magnitude ({{small|U=2}}).

A modeled lightcurve using photometric data from the Lowell Photometric Database was published in 2016. It gave a concurring period of {{val|4.058350|0.000001}} hours, as well as two spin axes at (3.0°, −81.0°) and (183.0°, −72.0°) in ecliptic coordinates (λ, β).

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Argelander measures between 9.2 and 11.0 kilometers in diameter and its surface has an albedo between 0.19 and 0.30. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 9.60 kilometers based on an absolute magnitude of 12.45.

{{reflist|30em|refs=

{{cite web

|type = 2018-10-20 last obs.

|title = JPL Small-Body Database Browser: 1551 Argelander (1938 DC1)

|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001551

|publisher = Jet Propulsion Laboratory

|accessdate = 11 December 2018}}

{{cite book

|title = Dictionary of Minor Planet Names – (1551) Argelander

|last = Schmadel | first = Lutz D.

|publisher = Springer Berlin Heidelberg

|page = 123

|date = 2007

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

|doi = 10.1007/978-3-540-29925-7_1552 |chapter = (1551) Argelander }}

{{cite web

|title = 1551 Argelander (1938 DC1)

|work = Minor Planet Center

|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1551

|accessdate = 11 December 2018}}

{{cite book

|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)

|chapter = Appendix – Publication Dates of the MPCs

|last = Schmadel |first=Lutz D.

|publisher = Springer Berlin Heidelberg

|page = 221

|isbn = 978-3-642-01964-7

|doi = 10.1007/978-3-642-01965-4|year = 2009

|chapter-url = https://cds.cern.ch/record/1339661

}}

{{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

|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|s2cid = 119293330 }}

{{cite web

|title = Asteroid (1551) Argelander – Proper elements

|publisher = AstDyS-2, Asteroids – Dynamic Site

|url = https://newton.spacedys.com/astdys/index.php?n=1551&pc=1.1.6

|accessdate = 10 December 2018}}

{{cite web

|title = Asteroid 1551 Argelander

|work = Small Bodies Data Ferret

|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1551+Argelander

|accessdate = 11 December 2018}}

{{cite web

|title = LCDB Data for (1551) Argelander

|publisher = Asteroid Lightcurve Database (LCDB)

|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1551%7CArgelander

|accessdate = 11 December 2018}}

{{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

|s2cid = 35447010 }} ([http://iopscience.iop.org/0004-637X/741/2/68/fulltext/apj398969t1_mrt.txt catalog])

{{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

|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|s2cid = 46350317 }}

{{cite journal

|display-authors = 6

|first1 = A. K. |last1 = Mainzer

|first2 = J. M. |last2 = Bauer

|first3 = R. M. |last3 = Cutri

|first4 = T. |last4 = Grav

|first5 = E. A. |last5 = Kramer

|first6 = J. R. |last6 = Masiero

|first7 = C. R. |last7 = Nugent

|first8 = S. M. |last8 = Sonnett

|first9 = R. A. |last9 = Stevenson

|first10 = E. L. |last10 = Wright

|date = June 2016

|title = NEOWISE Diameters and Albedos V1.0

|url = https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab

|journal = NASA Planetary Data System

|pages = EAR-A-COMPIL-5-NEOWISEDIAM-V1.0

|bibcode = 2016PDSS..247.....M

|access-date= 11 December 2018}}

{{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=1551 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])

{{Cite journal

|first1 = Michael |last1 = Fauerbach

|first2 = Austin |last2 = Brown

|date = July 2018

|title = Lightcurve Analysis of Minor Planets 1132 Hollandia, 1184 Gaea 1322 Coppernicius, 1551 Argelander, and 3230 Vampilov

|journal = The Minor Planet Bulletin

|volume = 45

|issue = 3

|pages = 240–241

|issn = 1052-8091

|bibcode = 2018MPBu...45..240F

}}

{{cite journal

|first1 = J. |last1 = Durech

|first2 = J. |last2 = Hanus

|first3 = D. |last3 = Oszkiewicz

|first4 = R. |last4 = Vanco

|date = March 2016

|title = Asteroid models from the Lowell photometric database

|journal = Astronomy and Astrophysics

|volume = 587

|page = 6

|bibcode = 2016A&A...587A..48D

|doi = 10.1051/0004-6361/201527573

|arxiv = 1601.02909

|s2cid = 118427201

}}

{{cite journal

|display-authors = 6

|first1 = Adam |last1 = Waszczak

|first2 = Chan-Kao |last2 = Chang

|first3 = Eran O. |last3 = Ofek

|first4 = Russ |last4 = Laher

|first5 = Frank |last5 = Masci

|first6 = David |last6 = Levitan

|first7 = Jason |last7 = Surace

|first8 = Yu-Chi |last8 = Cheng

|first9 = Wing-Huen |last9 = Ip

|first10 = Daisuke |last10 = Kinoshita

|first11 = George |last11 = Helou

|first12 = Thomas A. |last12 = Prince

|first13 = Shrinivas |last13 = Kulkarni

|date = September 2015

|title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry

|journal = The Astronomical Journal

|volume = 150

|issue = 3

|page = 35

|bibcode = 2015AJ....150...75W

|doi = 10.1088/0004-6256/150/3/75

|arxiv = 1504.04041|s2cid = 8342929 }}

}}

• [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
• [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
• [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
• {{AstDys|1551}}
• {{JPL small body}}

{{Minor planets navigator |1550 Tito |number=1551 |1552 Bessel}}

{{Small Solar System bodies}}

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001551

Category:Discoveries by Yrjö Väisälä

Category:Named minor planets

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