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{{Short description|Main-belt asteroid}}
<!-- Additional parameters for this template are available at [[Template:Infobox Planet]]. -->
{{Use dmy dates|date=October 2019}}
{{Infobox planet
{{Infobox planet
| minorplanet=yes
| minorplanet=yes
| background=#FFFFC0
| background=#D6D6D6
| name=207 Hedda
| name=207 Hedda
| discoverer=[[Johann Palisa]]
| discoverer=[[Johann Palisa]]
|image= Орбита астероида 207.png
⚫
| discovered=17 October 1879
|caption=Orbital diagram
⚫
| discovered=17 October 1879
| mpc_name=(207) Hedda
| mpc_name=(207) Hedda
| pronounced={{IPA|de|ˈhɛdaː|lang}}
| alt_names=1932 CL<sub>1</sub>, 1934 XJ,<br>1953 BF
| alt_names=A879 UA, {{mp|1932 CL|1}}<br/>1934 XJ, 1953 BF
| mp_category=[[Asteroid belt|Main belt]]
| mp_category=[[Asteroid belt|Main belt]]
| epoch=31 July 2016 ([[Julian day|JD]] 2457600.5)
| epoch=31 July 2016 ([[Julian day|JD]] 2457600.5)
| semimajor={{Convert|2.2837|AU|Gm|abbr=on}}
| semimajor={{Convert|2.2837|AU|Gm|abbr=on}}
| perihelion={{Convert|2.2177|AU|Gm|abbr=on}}
| perihelion={{Convert|2.2177|AU|Gm|abbr=on}}
| time_periastron=2023-Feb-21
| aphelion={{Convert|2.3497|AU|Gm|abbr=on|lk=on}}
| aphelion={{Convert|2.3497|AU|Gm|abbr=on|lk=on}}
| eccentricity=0.028894
| eccentricity=0.028894
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| mass=
| mass=
| density=
| density=
| surface_grav=
| escape_velocity=
| rotation={{Convert|30.098|h|d|abbr=on|lk=on}}<ref name="jpldata"/><br />19.489 h<ref name="mpb37_1_21"/>
| rotation={{Convert|30.098|h|d|abbr=on|lk=on}}<ref name="jpldata"/><br />19.489 h<ref name="mpb37_1_21"/>
| spectral_type=[[C-type asteroid|C]]
| spectral_type=[[C-type asteroid|C]]
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| single_temperature=
| single_temperature=
| mean_motion={{Deg2DMS|0.28559|sup=ms}} / day
| mean_motion={{Deg2DMS|0.28559|sup=ms}} / day
|named_after=Hedwig Winnecke
| orbit_ref=<ref name="jpldata">{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=207;cad=1 |title=207 Hedda |work=[[JPL Small-Body Database]] |publisher=[[NASA]]/[[Jet Propulsion Laboratory]] |access-date=12 May 2016}}</ref>
| orbit_ref=<ref name="jpldata">{{Cite web |url=https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=207 |title=207 Hedda |work=[[JPL Small-Body Database]] |publisher=[[NASA]]/[[Jet Propulsion Laboratory]] |access-date=12 May 2016}}</ref>
| observation_arc=133.61 yr (48801 d)
| observation_arc=133.61 yr (48801 d)
| uncertainty=0
| uncertainty=0
| moid={{Convert|1.20849|AU|Gm|abbr=on}}
| jupiter_moid={{Convert|2.61333|AU|Gm|abbr=on}}
| tisserand=3.600
}}
}}


'''207 Hedda''' is a sizeable [[Asteroid belt|Main belt]] [[asteroid]]. It is a [[C-type asteroid]], meaning it is primitive in composition and dark in colour. This asteroid was discovered by [[Johann Palisa]] on October 17, 1879, in [[Pula|Pola]] and was named after Hedwig, wife of astronomer [[Friedrich A. T. Winnecke]].
'''207 Hedda''' is a sizeable [[Asteroid belt|Main belt]] [[asteroid]]. It is a [[C-type asteroid]], meaning it is primitive in composition and dark in colour. This asteroid was discovered by [[Johann Palisa]] on October 17, 1879, in [[Pula|Pola]] and was named after Hedwig Winnecke (née Dell), wife of astronomer [[Friedrich A. T. Winnecke]].<ref>Schmadel, L. (2003:31). ''Dictionary of minor planet names''. Germany: Springer.</ref>


Attempts to determine the rotation period for this asteroid have led to conflicting results. A study published in 2010 using [[Photometry (astronomy)|photometric]] observations from Organ Mesa Observatory showed a [[rotation period]] of 19.489 ± 0.002 hours and a brightness variation of 0.18 ± 0.02 in [[Magnitude (astronomy)|magnitude]].<ref name="mpb37_1_21"/>
Attempts to determine the rotation period for this asteroid have led to conflicting results. A study published in 2010 using [[Photometry (astronomy)|photometric]] observations from Organ Mesa Observatory showed a [[rotation period]] of 19.489 ± 0.002 hours and a brightness variation of 0.18 ± 0.02 in [[Magnitude (astronomy)|magnitude]].<ref name="mpb37_1_21"/>
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==External links==
==External links==
*[ftp://ftp.lowell.edu/pub/elgb/astorb.html The Asteroid Orbital Elements Database]
* [http://ftp.lowell.edu/pub/elgb/astorb.html The Asteroid Orbital Elements Database]
*[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html Minor Planet Discovery Circumstances]
* [https://web.archive.org/web/20041205000314/http://www.psi.edu/pds/archive/albedo.html Asteroid Albedo Compilation]
* {{AstDys|207}}
*[http://www.psi.edu/pds/archive/albedo.html Asteroid Albedo Compilation]
*{{JPL small body}}
* {{JPL small body}}


{{Minor planets navigator|206 Hersilia|number=207|208 Lacrimosa}}
{{Minor planets navigator |206 Hersilia |number=207 |208 Lacrimosa}}
{{Small Solar System bodies}}
{{Small Solar System bodies}}
{{Authority control}}


{{DEFAULTSORT:000207}}
{{DEFAULTSORT:000207}}
[[Category:Main-belt asteroids]]
[[Category:Background asteroids]]
[[Category:Numbered minor planets]]
[[Category:Discoveries by Johann Palisa|Hedda]]
[[Category:Discoveries by Johann Palisa|Hedda]]
[[Category:Minor planets named for people|Hedda]]
[[Category:Named minor planets|Hedda]]
[[Category:Named minor planets|Hedda]]
[[Category:C-type asteroids (Tholen)]]
[[Category:C-type asteroids (Tholen)]]

Latest revision as of 14:08, 20 August 2024

207 Hedda
Orbital diagram
Discovery
Discovered byJohann Palisa
Discovery date17 October 1879
Designations
(207) Hedda
PronunciationGerman: [ˈhɛdaː]
Named after
Hedwig Winnecke
A879 UA, 1932 CL1
1934 XJ, 1953 BF
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc133.61 yr (48801 d)
Aphelion2.3497 AU (351.51 Gm)
Perihelion2.2177 AU (331.76 Gm)
2.2837 AU (341.64 Gm)
Eccentricity0.028894
3.45 yr (1260.5 d)
19.71 km/s
34.9926°
0° 17m 8.124s / day
Inclination3.8036°
29.212°
2023-Feb-21
192.936°
Physical characteristics
Dimensions58.70±1.3 km
30.098 h (1.2541 d)[1]
19.489 h[2]
0.0552±0.003
C
9.92

207 Hedda is a sizeable Main belt asteroid. It is a C-type asteroid, meaning it is primitive in composition and dark in colour. This asteroid was discovered by Johann Palisa on October 17, 1879, in Pola and was named after Hedwig Winnecke (née Dell), wife of astronomer Friedrich A. T. Winnecke.[3]

Attempts to determine the rotation period for this asteroid have led to conflicting results. A study published in 2010 using photometric observations from Organ Mesa Observatory showed a rotation period of 19.489 ± 0.002 hours and a brightness variation of 0.18 ± 0.02 in magnitude.[2]

References

[edit]
  1. ^ a b "207 Hedda". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
  2. ^ a b Pilcher, Frederick (January 2010), "Rotational Period Determination for 23 Thalia, 204 Kallisto and 207 Hedda, and Notes on 161 Athor and 215 Oenone", The Minor Planet Bulletin, 37 (1): 21–23, Bibcode:2010MPBu...37...21P.
  3. ^ Schmadel, L. (2003:31). Dictionary of minor planet names. Germany: Springer.
[edit]


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