Misplaced Pages

C/1963 F1 (Alcock): Difference between revisions

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactivelyContent deleted Content addedVisualWikitext
Revision as of 15:58, 19 December 2024 editKyloRen2017 (talk | contribs)Extended confirmed users5,057 edits Create English translation for C/1963 F1.. To be expecte  Latest revision as of 23:12, 22 December 2024 edit undoRussBot (talk | contribs)Bots1,407,277 editsm Robot: Editing intentional link to disambiguation page in hatnote per WP:INTDABLINK (explanation)Tag: Disambiguation links added 
(8 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{short description|Non-periodic comet}} {{short description|Non-periodic comet}}
{{For|the other four comets discovered by George Alcock|Comet Alcock (disambiguation){{!}}Comet Alcock}}
{{Infobox comet {{Infobox comet
| name = C/1963 F1 (Alcock) | name = C/1963 F1 (Alcock)
| image = Comet Alcock 1963b.jpg | image = Comet Alcock 1963b.jpg
| caption = Comet Alcock photographed from the ] on 21 March 1983 | caption = Comet Alcock photographed from the ] on 21 March 1963.{{r|Roemer_1963a}}
| discovery_ref = {{r|IAUC_1823}} | discovery_ref = {{r|IAUC_1823}}
| discoverer = ] | discoverer = ]
| discovery_site = | discovery_site = ], England
| discovery_date = 19 March 1963 | discovery_date = 19 March 1963
| designations = 1963b | designations = 1963b{{r|ICQ1}}<br>1963 III
| orbit_ref = {{r|jpl}} | orbit_ref = {{r|jpl|Sekanina_1965}}
| epoch = 15 May 1963 (] 2438164.5) | epoch = 15 May 1963 (] 2438164.5)
| observation_arc = 118 days | observation_arc = 118 days
| obs = 25 | obs = 101
| perihelion = 1.537 AU | perihelion = 1.537 AU
| aphelion = 1,476 AU | aphelion = 1,476 AU
| semimajor = 5 May 2024 | semimajor = 738.8 AU
| period = ~20,000 years | period = ~14,200 years
| eccentricity = 0.99792 | eccentricity = 0.99738
| inclination = 86.219° | inclination = 86.219°
| asc_node = 43.465° | asc_node = 43.465°
Line 24: Line 25:
| Earth_moid = 0.632 AU | Earth_moid = 0.632 AU
| Jupiter_moid = 2.855 AU | Jupiter_moid = 2.855 AU
| M1 = | physical_ref = {{r|Ferrin_1969}}
| M1 = 6.6
| M2 = 13.9 | M2 = 13.9
| magnitude = | magnitude = 4.4<br><small>(1963 apparition)</small>
| last_p = 5 May 1963 | last_p = 5 May 1963
| next_p = | next_p =
}} }}


'''Comet Alcock''', formally designated as '''C/1963 F1''' is a ]. It is the third of five comets discovered by English astronomer, ]. '''Comet Alcock''', formally designated as '''C/1963 F1''' is a ] that became barely visible to the naked eye in May 1963.{{r|Kronk_2009}} It is the third of five comets discovered by English astronomer, ].

== Discovery and observations ==
] found a new comet using his 25 × 105 ] on the morning of 19 March 1963. It was a diffuse 8th-magnitude object with a short ] about 2° northwest of the star ] at the time of discovery.{{efn|Reported initial position upon discovery was: ] {{=}} {{RA|19|33.7}}, ] {{=}} {{DEC|48|34}}{{r|Kronk_2009}}}}{{r|Nature_1963}} The comet was further observed in the following days, including a photographic session done from the ].{{r|Roemer_1963a}} By the end of April it had steadily brightened up to 7.5 in apparent magnitude.{{r|Kronk_2009}}

It had reached perihelion on 5 May, and made its closest approach to ] about four days later.{{r|Kronk_2009}} Initially, its brightness remained slightly lower than predicted by its ], until it produced an outburst that significantly raising its peak magnitude from 5.8 to 4.4 on 30 May.{{r|Chincarini_1970}} The nucleus was then observed to split into two, later five pieces on 23 June following several subsequent outbursts that started about a week earlier.{{r|Roemer_1963b}} By 19 July, ] reported that the comet faded back as a 9th-magnitude object, noting its coma being slightly elongated.{{r|Bennett_1964}} It was last observed on August 1963.{{r|Roemer_1963c}}


== References == == References ==
=== Notes ===
{{Notelist}}

=== Citations ===
{{Reflist|refs= {{Reflist|refs=

<ref name="Bennett_1964">{{cite journal
| author1= J. C. Bennett
| author2= L. L. van Zyl
| author3= S. C. Venter
| title= Observations of Comets in 1962 and 1963
| url= https://ui.adsabs.harvard.edu/link_gateway/1964MNSSA..23...45B/ADS_PDF
| journal= Monthly Notes of the Astronomical Society of Southern Africa
| year= 1964
| volume= 23
| pages= 45–55
| bibcode= 1964MNSSA..23...45B }}
</ref>

<ref name="Chincarini_1970">{{cite journal
| author1= G. Chincarini
| title= Observations of comet Alcock (1963b)
| url= https://ui.adsabs.harvard.edu/link_gateway/1970MmSAI..41....9C/ADS_PDF
| journal= Memorie della Società Astronomia Italiana
| year= 1970
| volume= 41
| pages= 9–20
| bibcode= 1970MmSAI..41....9C }}
</ref>

<ref name="Ferrin_1969">{{cite journal
| author1= I. R. Ferrin
| title= Brightness Variations of the Comet Alcock 1963 b and its Correlation with Solar Phenomena
| url= https://ui.adsabs.harvard.edu/link_gateway/1969JBAA...79..130F/ADS_PDF
| journal= Journal of the British Astronomical Association
| year= 1969
| volume= 79
| pages= 130–133
| bibcode= 1969JBAA...79..130F }}
</ref>


<ref name="IAUC_1823">{{cite journal <ref name="IAUC_1823">{{cite journal
| author1= B. G. Marsden | author1= K. A. Thernöe
| title= Comet Alcock (1963b) | title= Comet Alcock (1963b)
| url= http://www.cbat.eps.harvard.edu/iauc/03700/03796.html | url= http://www.cbat.eps.harvard.edu/iauc/03700/03796.html
| journal= Central Bureau for Astronomical Telegrams | journal= Central Bureau for Astronomical Telegrams
| volume= 1823 | volume= 1823
| date= 4 May 1983 }} | date= 4 May 1963
| page= 1
| bibcode= 1963IAUC.1823....1C }}
</ref>

<ref name="ICQ1">{{cite web
| title= Comet Names and Designations
| url= http://www.icq.eps.harvard.edu/names1.html
| website= International Comet Quarterly
| access-date= 20 December 2024 }}
</ref> </ref>


<ref name="jpl">{{cite web <ref name="jpl">{{cite web
| title= C/1983 H1 (IRAS–Araki–Alcock) – JPL Small-Body Database Lookup | title= C/1963 F1 (Alcock) – JPL Small-Body Database Lookup
| url= https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=1963F1 | url= https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=1963F1
| website= ssd.jpl.nasa.gov | website= ssd.jpl.nasa.gov
| publisher= ] | publisher= ]
| access-date= 19 December 2024 }} | access-date= 4 January 2024 }}
</ref>

<ref name="Kronk_2009">{{cite book
| author1= G. W. Kronk
| title= Cometography: A Catalog of Comets
| url= https://books.google.com/books?id=qV4Q49x8PTsC&pg=PA88
| volume= 5: 1960–1982
| year= 2009
| publisher= ]
| pages= 88–94
| isbn= 978-0-521-87226-3 }}
</ref>

<ref name="Nature_1963">{{cite journal
| title= New Comet Alcock (1963b)
| url= https://www.nature.com/articles/198138b0.pdf
| journal= Nature
| year= 1963
| volume= 198
| issue= 4876
| page= 138
| doi= 10.1038/198138b0
| doi-access= free | bibcode= 1963Natur.198R.138.
}}
</ref>

<ref name="Roemer_1963a">{{cite journal
| author1= E. Roemer
| title= Comet Notes
| journal= Publications of the Astronomical Society of the Pacific
| date= March 1963
| volume= 75
| issue= 444
| pages= 292–294
| jstor= 40674003
| doi= 10.1086/127953
| doi-access= free | bibcode= 1963PASP...75..292R
}}
</ref>

<ref name="Roemer_1963b">{{cite journal
| author1= E. Roemer
| title= Comet Notes
| journal= Publications of the Astronomical Society of the Pacific
| date= June 1963
| volume= 75
| issue= 445
| pages= 378–382
| doi= 10.1086/127974
| doi-access= free | bibcode= 1963PASP...75..378R
}}
</ref>

<ref name="Roemer_1963c">{{cite journal
| author1= E. Roemer
| title= Comet Notes
| journal= Publications of the Astronomical Society of the Pacific
| date= August 1963
| volume= 75
| issue= 446
| pages= 462–464
| doi= 10.1086/128008
| doi-access= free | bibcode= 1963PASP...75..462R
}}
</ref>

<ref name="Sekanina_1965">{{cite journal
| author1= Z. Sekanina
| title= Orbit of the Alcock comet (1963b)
| url= https://ui.adsabs.harvard.edu/link_gateway/1965BAICz..16...12S/ADS_PDF
| journal= Bulletin of the Astronomical Institute of Czechoslovakia
| year= 1965
| volume= 16
| issue= 1
| pages= 12–15
| bibcode= 1965BAICz..16...12S
| doi= 10.1038/198138b0
| doi-access= free }}
</ref> </ref>


Line 61: Line 194:
{{Authority control}} {{Authority control}}


{{DEFAULTSORT:Alcock, 1963 F1}}
] ]
]
] ]

{{Comet-stub}}

Latest revision as of 23:12, 22 December 2024

Non-periodic comet For the other four comets discovered by George Alcock, see Comet Alcock.
C/1963 F1 (Alcock)
Comet Alcock photographed from the US Naval Observatory on 21 March 1963.
Discovery
Discovered byGeorge Alcock
Discovery sitePeterborough, England
Discovery date19 March 1963
Designations
Alternative designations1963b
1963 III
Orbital characteristics
Epoch15 May 1963 (JD 2438164.5)
Observation arc118 days
Number of
observations		101
Aphelion1,476 AU
Perihelion1.537 AU
Semi-major axis738.8 AU
Eccentricity0.99738
Orbital period~14,200 years
Inclination86.219°
Longitude of
ascending node		43.465°
Argument of
periapsis		146.62°
Last perihelion5 May 1963
TJupiter0.108
Earth MOID0.632 AU
Jupiter MOID2.855 AU
Physical characteristics
Comet total
magnitude (M1)		6.6
Comet nuclear
magnitude (M2)		13.9
Apparent magnitude4.4
(1963 apparition)

Comet Alcock, formally designated as C/1963 F1 is a non-periodic comet that became barely visible to the naked eye in May 1963. It is the third of five comets discovered by English astronomer, George Alcock.

Discovery and observations

George Alcock found a new comet using his 25 × 105 binoculars on the morning of 19 March 1963. It was a diffuse 8th-magnitude object with a short tail about 2° northwest of the star δ Cyg at the time of discovery. The comet was further observed in the following days, including a photographic session done from the Flagstaff Observatory. By the end of April it had steadily brightened up to 7.5 in apparent magnitude.

It had reached perihelion on 5 May, and made its closest approach to Earth about four days later. Initially, its brightness remained slightly lower than predicted by its ephemerides, until it produced an outburst that significantly raising its peak magnitude from 5.8 to 4.4 on 30 May. The nucleus was then observed to split into two, later five pieces on 23 June following several subsequent outbursts that started about a week earlier. By 19 July, John C. Bennett reported that the comet faded back as a 9th-magnitude object, noting its coma being slightly elongated. It was last observed on August 1963.

References

Notes

  1. Reported initial position upon discovery was: α = 19 33.7 , δ = 48° 34′

Citations

  1. ^ E. Roemer (March 1963). "Comet Notes". Publications of the Astronomical Society of the Pacific. 75 (444): 292–294. Bibcode:1963PASP...75..292R. doi:10.1086/127953. JSTOR 40674003.
  2. K. A. Thernöe (4 May 1963). "Comet Alcock (1963b)". Central Bureau for Astronomical Telegrams. 1823: 1. Bibcode:1963IAUC.1823....1C.
  3. "Comet Names and Designations". International Comet Quarterly. Retrieved 20 December 2024.
  4. "C/1963 F1 (Alcock) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 4 January 2024.
  5. Z. Sekanina (1965). "Orbit of the Alcock comet (1963b)". Bulletin of the Astronomical Institute of Czechoslovakia. 16 (1): 12–15. Bibcode:1965BAICz..16...12S. doi:10.1038/198138b0.
  6. I. R. Ferrin (1969). "Brightness Variations of the Comet Alcock 1963 b and its Correlation with Solar Phenomena". Journal of the British Astronomical Association. 79: 130–133. Bibcode:1969JBAA...79..130F.
  7. ^ G. W. Kronk (2009). Cometography: A Catalog of Comets. Vol. 5: 1960–1982. Cambridge University Press. pp. 88–94. ISBN 978-0-521-87226-3.
  8. "New Comet Alcock (1963b)" (PDF). Nature. 198 (4876): 138. 1963. Bibcode:1963Natur.198R.138.. doi:10.1038/198138b0.
  9. G. Chincarini (1970). "Observations of comet Alcock (1963b)". Memorie della Società Astronomia Italiana. 41: 9–20. Bibcode:1970MmSAI..41....9C.
  10. E. Roemer (June 1963). "Comet Notes". Publications of the Astronomical Society of the Pacific. 75 (445): 378–382. Bibcode:1963PASP...75..378R. doi:10.1086/127974.
  11. J. C. Bennett; L. L. van Zyl; S. C. Venter (1964). "Observations of Comets in 1962 and 1963". Monthly Notes of the Astronomical Society of Southern Africa. 23: 45–55. Bibcode:1964MNSSA..23...45B.
  12. E. Roemer (August 1963). "Comet Notes". Publications of the Astronomical Society of the Pacific. 75 (446): 462–464. Bibcode:1963PASP...75..462R. doi:10.1086/128008.

External links

Comets
Features Comet C/1996 B2 (Hyakutake)
Types
Related
Exploration
Latest
Culture and
speculation
Lists of comets (more)
Periodic
comets
Until 1985
(all)
After 1985
(notable)
Comet-like
asteroids
Lost
Recovered
Destroyed
Not found
Visited by
spacecraft
Near-Parabolic
comets
(notable)
Until 1990
After 1990
After 1910
(by name)
Categories: