1804 Chebotarev

{{Infobox planet

| minorplanet = yes

| name = 1804 Chebotarev

| background = #D6D6D6

| image = 001804-asteroid shape model (1804) Chebotarev.png

| image_scale =

| caption = Shape model of Chebotarev from its lightcurve

| discovery_ref =

| discovered = 6 April 1967

| discoverer = T. Smirnova

| discovery_site = {{nowrap|Crimean Astrophysical Obs.}}

| mpc_name = (1804) Chebotarev

| alt_names = 1967 GG{{·}}1938 QL
1942 RL{{·}}1968 QK

| named_after = G. A. Chebotarev {{small|(astronomer)}}

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

| orbit_ref =

| epoch = 4 September 2017 (JD 2458000.5)

| uncertainty = 0

| observation_arc = 78.05 yr (28,506 days)

| aphelion = 2.4628 AU

| perihelion = 2.3584 AU

| semimajor = 2.4106 AU

| eccentricity = 0.0217

| period = 3.74 yr (1,367 days)

| mean_anomaly = 96.780°

| mean_motion = {{Deg2DMS|0.2633|sup=ms}} / day

| inclination = 3.6316°

| asc_node = 325.72°

| arg_peri = 305.47°

| dimensions = {{val|9.15|1.12}} km
10.79 km {{small|(calculated)}}

| rotation = {{val|4.026|0.002}} h

| albedo = 0.20 {{small|(assumed)}}
{{val|0.501|0.289}}

| spectral_type = S

| abs_magnitude = 11.56{{·}}12.2{{·}}{{val|12.25|0.45}}

}}

1804 Chebotarev (prov. designation: {{mp|1967 GG}}) is a stony background asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 6 April 1967, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. The asteroid was named after Soviet astronomer {{ill|Gleb Chebotaryov|ru|Чеботарёв, Глеб Александрович}}.

Orbit and classification

The stony S-type asteroid orbits the Sun in the inner main-belt at a distance of 2.4–2.5 AU once every 3 years and 9 months (1,367 days). Its orbit has an eccentricity of 0.02 and an inclination of 4° with respect to the ecliptic. Chebotarev was first identified as {{mp|1938 QL}} at Yerkes Observatory in 1938, extending the body's observation arc by 29 years prior to its official discovery observation.

Physical characteristics

= Rotation period =

In February 2004, a rotational lightcurve of Chebotarev was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. It gave a well-defined rotation period of 4.026 hours with a brightness amplitude of 0.41 magnitude ({{small|U=3}}).

= Diameter and albedo =

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Chebotarev measures 9.15 kilometers in diameter, and its surface has a high albedo of 0.501, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 10.79 kilometers with an absolute magnitude of 12.2.

Naming

This minor planet was named in honor of G. A. Chebotarev (1913–1975), who was a professor and the director of the Institute of Theoretical Astronomy as well as president of IAU's Commission 20, (Positions & Motions of Minor Planets, Comets & Satellites). He is known for his work on celestial mechanics of asteroids, comets and satellites. The official {{MoMP|1804|naming citation}} was published by the Minor Planet Center on 1 January 1974 ({{small|M.P.C. 3569}}).

References

{{reflist|30em|refs=

{{cite web

|type = 2016-09-14 last obs.

|title = JPL Small-Body Database Browser: 1804 Chebotarev (1967 GG)

|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001804

|publisher = Jet Propulsion Laboratory

|accessdate = 8 June 2017}}

{{cite book

|title = Dictionary of Minor Planet Names – (1804) Chebotarev

|last = Schmadel | first = Lutz D.

|publisher = Springer Berlin Heidelberg

|pages = 144–145

|date = 2007

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

|doi = 10.1007/978-3-540-29925-7_1805 |chapter = (1804) Chebotarev }}

{{cite web

|title = 1804 Chebotarev (1967 GG)

|work = Minor Planet Center

|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1804

|accessdate = 16 December 2016}}

{{cite book

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

|year = 2009

|url = https://archive.org/details/dictionaryminorp2008schm

|url-access = limited

|chapter = Appendix – Publication Dates of the MPCs

|last = Schmadel |first=Lutz D.

|publisher = Springer Berlin Heidelberg

|page = [https://archive.org/details/dictionaryminorp2008schm/page/n230 221]

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

|doi = 10.1007/978-3-642-01965-4}}

{{cite web

|title = Asteroids and comets rotation curves – (1804) Chebotarev

|last = Behrend |first = Raoul

|publisher = Geneva Observatory

|url = http://obswww.unige.ch/~behrend/page4cou.html#001804

|accessdate = 16 December 2016}}

{{cite web

|title = LCDB Data for (1804) Chebotarev

|publisher = Asteroid Lightcurve Database (LCDB)

|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1804%7CChebotarev

|accessdate = 16 December 2016}}

{{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 December 2016}}

{{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 December 2016}}

}}

External links

[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
[http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
[https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
{{AstDys|1804}}
{{JPL small body}}

{{Minor planets navigator |1803 Zwicky |number=1804 |1805 Dirikis}}

001804

Category:Discoveries by Tamara Mikhaylovna Smirnova

Category:Named minor planets

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