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词条 1026 Ingrid
释义

  1. Discovery and recovery

  2. Orbit and classification

  3. Physical characteristics

      Rotation period    Diameter and albedo  

  4. Naming

  5. References

  6. External links

{{Infobox planet
| minorplanet = yes
| name = 1026 Ingrid
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref =  
| discoverer = K. Reinmuth
| discovery_site = Heidelberg Obs.
| discovered = 13 August 1923
| mpc_name = (1026) Ingrid
| alt_names = 1923 NY{{·}}1957 UC
1963 GD{{·}}{{mp|1981 WL|8}}
{{mp|1986 CG|2}}{{·}}{{mp|1986 ES|2}}
| pronounced =
| named_after = {{small|Ingrid, niece of astronomer Albrecht Kahrstedt}} [2]
| mp_category = main-belt{{·}}{{small|(inner)}}
Flora [3][4]
| orbit_ref =  
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 93.89 yr (34,294 days)
| aphelion = 2.6636 AU
| perihelion = 1.8458 AU
| semimajor = 2.2547 AU
| eccentricity = 0.1814
| period = 3.39 yr (1,237 days)
| mean_anomaly = 292.55°
| mean_motion = {{Deg2DMS|0.2911|sup=ms}} / day
| inclination = 5.3994°
| asc_node = 104.59°
| arg_peri = 212.34°
| dimensions = {{val|5.73|1.01}} km[6]
{{val|6.96|0.68}} km[7]
{{val|7.353|0.082}} km[8]
{{val|7.670|0.069}} km[9]
8.19 km {{small|(calculated)}}[3]
| rotation = {{val|5}} h[11]
| albedo = {{val|0.1441|0.0250}}[9]
{{val|0.156|0.024}}[8]
{{val|0.175|0.035}}[7]
0.24 {{small|(assumed)}}[3]
{{val|0.43|0.22}}[6]
| spectral_type = S [3]
| abs_magnitude = 12.6[3]{{·}}12.70[6]{{·}}12.8{{·}}13.30[7][9]
}}1026 Ingrid, provisional designation {{mp|1923 NY}}, is a stony Florian asteroid and long-lost minor planet (1923–1986) from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by Karl Reinmuth at Heidelberg in 1923, and later named after Ingrid, niece and godchild of astronomer Albrecht Kahrstedt.[23]

Discovery and recovery

Ingrid was discovered on 13 August 1923, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was observed for only a few days during August 1923, before it became a lost minor planet for nearly 63 years until its recovery by Japanese astronomer Syuichi Nakano in 1986.[23][25]

Nakano was able to show that Ingrid had been observed and provisionally designated several times during its lost period: as {{mp|1957 UC}} at the discovering Heidelberg Observatory in October 1957, possibly as {{mp|1963 GD}} at Goethe Link Observatory in April 1963, as {{mp|1981 WL|8}} at the Crimean Astrophysical Observatory in November 1981, and as {{mp|1986 ES|2}} at Palomar Observatory in March 1986.[23][25]

With the recovery of Ingrid in 1986, and the almost simultaneously recovered asteroid 1179 Mally, the list of long-lost numbered asteroids was reduced to four.[25] The last remaining lost asteroid, 69230 Hermes, was recovered in 2003.

Orbit and classification

Ingrid is a member of the Flora family ({{small|402}}), a giant asteroid family and the largest family of stony asteroids.[3][4] It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 5 months (1,237 days). Its orbit has an eccentricity of 0.18 and an inclination of 5° with respect to the ecliptic. The body's observation arc begins at Heidelberg, one night after its official discovery observation in 1923.[23]

Physical characteristics

Ingrid is an assumed S-type asteroid, in-line with the Flora family's spectral type.[3][34]{{rp|23}}

Rotation period

A rotational lightcurve of Ingrid was obtained from photometric observations by a group of Hungarian astronomers. The 2005-published lightcurve analysis gave a rotation period of 5 hours with a brightness variation of 0.5 magnitude ({{small|U=2}}).[11]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Ingrid measures between 5.73 and 7.67 kilometers in diameter and its surface has an albedo between 0.1441 and 0.43.[6][7][8][9]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and calculates a diameter of 8.19 kilometers based an absolute magnitude of 12.6.[3]

Naming

This minor planet was named after Ingrid, niece and godchild of Albrecht Kahrstedt (1897–1971), a German astronomer at ARI and director of the institute's Potsdam division, who requested the naming of this asteroid and 984 Gretia (mother of Ingrid) in a personal letter to the discoverer in February 1926.[2] Kahrstedt himself was honored with the naming of {{MoMP|1587|1587 Kahrstedt}}.

The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H98}}). Lutz Schmadel quoted an excerpt of Kahrstedt's letter in his Dictionary of Minor Planet Names (LDS).[2]

References

1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1026) Ingrid |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 88 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1027 |chapter = (1026) Ingrid }}
2. ^1 2 3 4 {{cite web |title = 1026 Ingrid (1923 NY) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1026 |accessdate = 25 August 2017}}
3. ^1 2 3 {{cite web |title = International Astronomical Union Circular 4281 |publisher = Central Bureau for Astronomical Telegrams |author = Brian G. Marsden |authorlink = Brian G. Marsden |date = 8 December 1986 |url = http://www.cbat.eps.harvard.edu/iauc/04200/04281.html |accessdate = 25 August 2017}}
4. ^1 2 3 {{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= 25 August 2017}}
5. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = http://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 25 August 2017 |deadurl = yes |archiveurl = https://web.archive.org/web/20170816000205/http://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |archivedate = 16 August 2017 |df = dmy-all}}
6. ^1 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }}
7. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1026) Ingrid |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1026%7CIngrid |accessdate = 25 August 2017}}
8. ^1 2 3 4 {{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 |url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html |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 |access-date= 25 August 2017}}
9. ^1 2 3 4 {{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 }}
10. ^1 2 3 4 {{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= 25 August 2017}}
11. ^1 2 {{cite journal |display-authors = 6 |first1 = P. |last1 = Székely |first2 = L. L. |last2 = Kiss |first3 = Gy. M. |last3 = Szabó |first4 = K. |last4 = Sárneczky |first5 = B. |last5 = Csák |first6 = M. |last6 = Váradi |first7 = Sz. |last7 = Mészáros |date = August 2005 |title = CCD photometry of 23 minor planets |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2005P&SS...53..925S |journal = Planetary and Space Science |volume = 53 |issue = 9 |pages = 925–936 |bibcode = 2005P&SS...53..925S |doi = 10.1016/j.pss.2005.04.006 |arxiv = astro-ph/0504462 |access-date= 25 August 2017}}
[1][2][3][4][5][6][7][8][9][10][11]

}}

External links

  • Asteroid Lightcurve Database (LCDB), query form (info)
  • [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • (1026) Ingrid at AstDyS-2
  • {{JPL small body}}
{{Minor planets navigator|1025 Riema|number=1026|1027 Aesculapia}}{{Small Solar System bodies}}{{Use dmy dates|date=October 2013}}{{DEFAULTSORT:Ingrid}}

5 : Flora asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1923
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