632 Pyrrha: Difference between revisions

632 Pyrrha
	Modelled shape of Pyrrha from its lightcurve
Discovery
Discovered by	August Kopff
Discovery site	Heidelberg
Discovery date	5 April 1907
Designations
MPC designation	(632) Pyrrha
Pronunciation	/ˈpɪrə/,
Alternative designations	1907 YX
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	109.03 yr (39823 d)
Aphelion	3.1695 AU (474.15 Gm)
Perihelion	2.1583 AU (322.88 Gm)
Semi-major axis	2.6639 AU (398.51 Gm)
Eccentricity	0.18979
Orbital period (sidereal)	4.35 yr (1588.1 d)
Mean anomaly	33.9510°
Mean motion	0° 13m 36.084s / day
Inclination	2.2156°
Longitude of ascending node	356.505°
Argument of perihelion	252.767°
Physical characteristics
Synodic rotation period	4.1167 h (0.17153 d)
Absolute magnitude (H)	11.4

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Latest revision as of 14:45, 17 August 2024

632 Pyrrha is a minor planet orbiting the Sun.

Photometric observations of the minor planet in 2011 gave a rotation period of 4.1167±0.001 h with an amplitude of 0.40±0.04 in magnitude. This result rules out previous determinations of the period.^[3]

References

^ "Pyrrhic". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
^ "632 Pyrrha (1907 YX)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
^ Pilcher, Frederick (July 2011), "Rotation Period Determinations for 28 Bellona, 81 Terpsichore, 126 Velleda 150 Nuwa, 161 Athor, 419 Aurelia, and 632 Pyrrha", The Minor Planet Bulletin, 38 (3): 156–158, Bibcode:2011MPBu...38..156P.

External links

632 Pyrrha at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
632 Pyrrha at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[1] "Pyrrhic". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

[jpldata-2] "632 Pyrrha (1907 YX)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

[Pilcher2011-3] Pilcher, Frederick (July 2011), "Rotation Period Determinations for 28 Bellona, 81 Terpsichore, 126 Velleda 150 Nuwa, 161 Athor, 419 Aurelia, and 632 Pyrrha", The Minor Planet Bulletin, 38 (3): 156–158, Bibcode:2011MPBu...38..156P.

[1]

[2]

[3]

@@ Line 1: / Line 1: @@
+{{Short description|Main-belt asteroid}}
+{{Use dmy dates|date=October 2019}}
 {{Infobox planet
  | minorplanet= yes
- | background= #FFFFC0
  | name= 632 Pyrrha
+ | background      = #D6D6D6
+ | image           = 000632-asteroid shape model (632) Pyrrha.png
+ | image_scale      =
+ | caption         = Modelled shape of ''Pyrrha'' from its [[lightcurve]]
+ | mpc_name= (632) Pyrrha
  | alt_names= 1907 YX
+ | pronounced      = {{IPAc-en|'|p|ɪr|ə}},<ref>{{OED|Pyrrhic}}</ref>
  | discoverer= [[August Kopff]]
  | discovered= 5 April 1907
@@ Line 18: / Line 25: @@
  | mean_anomaly= 33.9510[[Degree (angle)|°]]
  | mean_motion= {{Deg2DMS|0.22669|sup=ms}} / day
- | orbit_ref= <ref name="jpldata">{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=632;cad=1 |title=632 Pyrrha (1907 YX) |work=[[JPL Small-Body Database]] |publisher=[[NASA]]/[[Jet Propulsion Laboratory]] |access-date=5 May 2016}}</ref>
+ | orbit_ref= <ref name="jpldata">{{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=632;cad=1 |title=632 Pyrrha (1907 YX) |work=[[JPL Small-Body Database]] |publisher=[[NASA]]/[[Jet Propulsion Laboratory]] |access-date=5 May 2016}}</ref>
  | observation_arc= 109.03 yr (39823 d)
  | uncertainty= 0
  | abs_magnitude= 11.4
  | rotation= {{Convert|4.1167|h|d|abbr=on|lk=on}}
- | moid= {{Convert|1.14552|AU|Gm|abbr=on}}
- | jupiter_moid= {{Convert|1.87313|AU|Gm|abbr=on}}
- | tisserand= 3.357
 }}
 '''632 Pyrrha''' is a [[minor planet]] orbiting the [[Sun]].
+[[Photometry (astronomy)|Photometric]] observations of the minor planet in 2011 gave a [[rotation period]] of {{Val|4.1167|0.001|u=h}} with an [[amplitude]] of {{Val|0.40|0.04}} in magnitude. This result rules out previous determinations of the period.<ref name=Pilcher2011/>
 ==References==
-{{Reflist}}
+{{Reflist|refs=
+<ref name=Pilcher2011>{{citation
+ | title=Rotation Period Determinations for 28 Bellona, 81 Terpsichore, 126 Velleda 150 Nuwa, 161 Athor, 419 Aurelia, and 632 Pyrrha
+ | last1=Pilcher | first1=Frederick
+ | journal=The Minor Planet Bulletin
+ | volume=38 | issue=3 | pages=156–158 | date=July 2011
+ | bibcode=2011MPBu...38..156P | postscript=. }}</ref>
+}} <!-- end of reflist -->
 ==External links==
+* {{AstDys|632}}
-* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]
-* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=632  NASA's Jet Propulsion Laboratory Datasite page on this space object]
 * {{JPL small body}}
-{{Minor planets navigator|631 Philippina|633 Zelima}}
+{{Minor planets navigator |631 Philippina |number=632 |633 Zelima}}
 {{Small Solar System bodies}}
+{{Authority control}}
 {{DEFAULTSORT:000632}}
-[[Category:Main-belt asteroids]]
+[[Category:Background asteroids]]
-[[Category:Minor planets named from Greek mythology|Pyrrha]]
+[[Category:Named minor planets|Pyrrha]]
 [[Category:Discoveries by August Kopff|Pyrrha]]
 [[Category:Astronomical objects discovered in 1907|19070405]]
-[[Category:Numbered minor planets]]