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{{Infobox planet
{{Infobox planet
| minorplanet = yes
| width = 25em
| name = 1923 Osiris
| bgcolour = #FFFFC0
| background = #FFFFC0
| apsis =
| discovery_ref = &thinsp;<ref name="jpldata" />
| name = Osiris
| discovered = 24 September 1960
| symbol =
| discoverer = [[Palomar–Leiden survey]]<br />[[Cornelis Johannes van Houten|C. J. van Houten]], [[Ingrid van Houten-Groeneveld|I. van Houten-Groeneveld]], [[Tom Gehrels]]
| image =
| discovery_site = [[Palomar Observatory|Palomar Obs.]]
| caption =
| mp_name = 1923 Osiris
| discovery = yes
| alt_names = {{mp|4011 P-|L}}{{·}}{{mp|1964 TO|2}}<br />1966 FR{{·}}1974 KN<br />1974 KP{{·}}1974 LE
| discovery_ref =
| named_after = [[Osiris]]<ref name="springer" />
| discoverer = [[Cornelis Johannes van Houten]], [[Ingrid van Houten-Groeneveld]] and [[Tom Gehrels]]
| mp_category = [[main-belt]]
| discovery_site = [[Leiden]] on [[Palomar Observatory]] Schmidt plates
| orbit_ref = &thinsp;<ref name="jpldata" />
| discovered = September 24, 1960
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| designations = yes
| uncertainty = 0
| mp_name = 1923
| observation_arc = {{nowrap|61.43 yr (22,436 days)}}
| alt_names = 4011 P-L
| aphelion = 2.5908 [[Astronomical unit|AU]]
| named_after = [[Osiris]]
| perihelion = 2.2811 AU
| mp_category =
| semimajor = 2.4359 AU
| orbit_ref =
| eccentricity = 0.0635
| epoch = May 14, 2008
| period = 3.80 [[Julian year (astronomy)|yr]] (1388.7 days)
| aphelion = 2.5901610
| mean_anomaly = 61.318[[degree (angle)|°]]
| perihelion = 2.2797326
| inclination = 4.9583°
| semimajor =
| asc_node = 353.07°
| eccentricity = 0.0637444
| arg_peri = 106.62°
| period = 1387.8183626
| moid = 1.3045 AU
| avg_speed =
| inclination = 4.95558
| dimensions = 13.1 km
| rotation =
| asc_node = 353.15764
| albedo = 0.0591
| mean_anomaly = 108.85216
| spectral_type = [[C-type asteroid|C]] {{small|([[SMASS]]II)}}
| arg_peri = 105.00210
| abs_magnitude = 13.6 mag
| satellites =
| physical_characteristics = yes
| dimensions =
| mass =
| density =
| surface_grav =
| escape_velocity =
| sidereal_day =
| axial_tilt =
| pole_ecliptic_lat =
| pole_ecliptic_lon =
| albedo = 0.0591
| temperatures=
| temp_name1 =
| mean_temp_1 =
| max_temp_1 =
| temp_name2 =
| max_temp_2 =
| spectral_type =
| abs_magnitude = 13.10
}}
}}
'''1923 Osiris''' (4011 P-L) is a [[Asteroid belt|main-belt]] [[asteroid]] discovered on September 24, 1960 by [[Cornelis Johannes van Houten]] and [[Ingrid van Houten-Groeneveld]] at [[Leiden]], on [[Palomar Observatory]] Schmidt plates taken by [[Tom Gehrels]].<ref name=MPC5013>{{Citation | publication-date = 1 Nov 1979 | title = New Names of Minor Planets | periodical = [[Minor Planet Circular]] | publication-place = Cambridge, Mass | publisher = [[Minor Planet Center]] | issue = MPC 5013 | url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/1979/MPC_19791101.pdf | issn = 0736-6884 | }}</ref>


'''1923 Osiris''', also designated 4011 P-L, is a [[main-belt]] [[asteroid]] discovered on September 24, 1960 by [[Cornelis Johannes van Houten]] and [[Ingrid van Houten-Groeneveld]] at Leiden, on photographic plates taken by [[Tom Gehrels]] at Palomar.<ref name=MPC5013>{{Citation | publication-date = 1 Nov 1979 | title = New Names of Minor Planets | periodical = [[Minor Planet Circular]] | publication-place = Cambridge, Mass | publisher = [[Minor Planet Center]] | issue = MPC 5013 | url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/1979/MPC_19791101.pdf | issn = 0736-6884 | }}</ref> Osiris is a [[C-type asteroid|C-type]] asteroid, about 13 kilometers in diameter.<ref name="jpldata" />
== Notes ==

{{reflist}}
The designation ''P–L'' stands for ''Palomar–Leiden'', named after [[Palomar Observatory]] and [[Leiden Observatory]], which collaborated on the fruitful [[Palomar–Leiden survey]] in the 1960s. Gehrels used Palomar's [[Samuel Oschin telescope]] (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.

It is named after [[Osiris]], the Egyptian god of vegetation, of the waxing and waning Moon and of the annual flooding of the Nile.<ref name="springer" />

== References ==
{{reflist
|refs=

<ref name="jpldata">{{cite web
|type=2015-05-12 last obs.
|title=JPL Small-Body Database Browser: 1923 Osiris (4011 P-L)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001923
|publisher=Jet Propulsion Laboratory
|accessdate=October 2015}}</ref>

<ref name="springer">{{cite book
|url=http://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_1924
|title=Dictionary of Minor Planet Names – (1923) Osiris
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=154
|date=2003
|isbn=978-3-540-29925-7
|accessdate=October 2015}}</ref>

}} <!-- end of reflist -->


== External links ==
== External links ==
* {{cite sbdb|title=1923 Osiris (4011 P-L)|id=2001923}}
*[http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1923+Osiris JPL Small-Body Database Browser on 1923 Osiris]


{{Minor planets navigator|1922 Zulu|1924 Horus}}
{{Minor planets navigator|1922 Zulu|1924 Horus}}

Revision as of 19:52, 12 October 2015

1923 Osiris
Discovery [1]
Discovered byPalomar–Leiden survey
C. J. van Houten, I. van Houten-Groeneveld, Tom Gehrels
Discovery sitePalomar Obs.
Discovery date24 September 1960
Designations
1923 Osiris
Named after
Osiris[2]
4011 P-L · 1964 TO2
1966 FR · 1974 KN
1974 KP · 1974 LE
main-belt
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc61.43 yr (22,436 days)
Aphelion2.5908 AU
Perihelion2.2811 AU
2.4359 AU
Eccentricity0.0635
3.80 yr (1388.7 days)
61.318°
Inclination4.9583°
353.07°
106.62°
Earth MOID1.3045 AU
Physical characteristics
Dimensions13.1 km
0.0591
C (SMASSII)
13.6 mag

1923 Osiris, also designated 4011 P-L, is a main-belt asteroid discovered on September 24, 1960 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden, on photographic plates taken by Tom Gehrels at Palomar.[3] Osiris is a C-type asteroid, about 13 kilometers in diameter.[1]

The designation P–L stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.

It is named after Osiris, the Egyptian god of vegetation, of the waxing and waning Moon and of the annual flooding of the Nile.[2]

References

  1. ^ a b c "JPL Small-Body Database Browser: 1923 Osiris (4011 P-L)" (2015-05-12 last obs.). Jet Propulsion Laboratory. Retrieved October 2015. {{cite web}}: Check date values in: |accessdate= (help)
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1923) Osiris. Springer Berlin Heidelberg. p. 154. ISBN 978-3-540-29925-7. Retrieved October 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ "New Names of Minor Planets" (PDF), Minor Planet Circular, no. MPC 5013, Cambridge, Mass: Minor Planet Center, 1 Nov 1979, ISSN 0736-6884 {{citation}}: Cite has empty unknown parameter: |1= (help)

External links

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