دنبالهدار هیل-باپ: تفاوت میان نسخهها
محتوای حذفشده محتوای افزودهشده
Silverstar (بحث | مشارکتها) جز ←لید: ویرایش و تصحیح (جزئی) |
Luckie Luke (بحث | مشارکتها) بدون خلاصۀ ویرایش |
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خط ۱:
{{Infobox Comet
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| image_size= 200px
| caption = Comet Hale–Bopp, shortly after passing [[perihelion]] in April 1997
| pronounced = {{IPAc-en|,|h|ei|l|_|'|b|Q|p}}
| discoverer = [[Alan Hale (astronomer)|Alan Hale]]<br/>[[Thomas Bopp]]
| discovery_date = July 23, 1995
| designations = {{nowrap|The Great Comet of 1997,<br/>C/1995 O1}}
| epoch = 2450460.5
| semimajor = 186 [[Astronomical Unit|AU]]
| perihelion = 0.914 AU<ref name=jpldata>{{cite web |type=2007-10-22 last obs |title=JPL Small-Body Database Browser: C/1995 O1 (Hale–Bopp) |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Hale-Bopp |accessdate=2008-12-05}}</ref>
| aphelion = 370.8 AU<ref name=jpldata/>
| gravitational parameter mu = 132628150151
| eccentricity = 0.995086
| period = {{nowrap|2520<ref name="NK1553">{{cite web |date=2008-02-12 |title=OAA computing section circular NK 1553 |publisher=OAA Computing and Minor Planet Sections |author=Syuichi Nakano |url=http://www.oaa.gr.jp/~oaacs/nk/nk1553.htm |accessdate=2009-12-17}}</ref>–2533<ref name=jpldata/> [[Julian year (astronomy)|yr]]<br/>([[Barycentric coordinates (astronomy)|Barycentric]] 2391 yr)<ref name=barycenter>{{cite web |author=[[JPL Horizons On-Line Ephemeris System|Horizons]] output |url=http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=C/1995+O1 |title=Barycentric Osculating Orbital Elements for Comet C/1995 O1 (Hale-Bopp) |accessdate=2011-01-31}} (Solution using the Solar System [[Center of mass#Barycenter in astrophysics and astronomy|Barycenter]] and [[Barycentric coordinates (astronomy)|barycentric coordinates]]. Select Ephemeris Type:Elements and Center:@0)</ref>}}
| inclination = 89.4°
| dimensions = 40–80 km<ref name=jpldata/>
| albedo = 0.01–0.07
| last_p = April 1, 1997<ref name=jpldata/>
| next_p = 4385 ± 2.0 AD<ref name=Hale-Bopp4385>{{cite web|title=Solex 10 estimate for Next Perihelion of C/1995 O1 (Hale-Bopp) |url=http://home.surewest.net/kheider/astro/Hale-Bopp4385.txt |accessdate=2009-12-18 |url-status=dead |archiveurl=https://web.archive.org/web/20120810085857/http://home.surewest.net/kheider/astro/Hale-Bopp4385.txt |archivedate=August 10, 2012 }}</ref>
}}
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