Larissa (yoʻldosh)

Larissa
Kashf etilishi
Kashf etilgan	Harold J. Reitsema, William B. Hubbard, Larry A. Lebofsky, and David J. Tholen
Kashf etilgan sanasi	May 24, 1981
Tasnifi	Neptune VII
Talaffuzi	/ləˈrɪsə/
Kimning sharafiga nomlangan	Λάρισσα Lārissa
	S/1989 N 2 S/1981 N 1
Sifatlari	Larissean, Larissan, Larissian /ləˈrɪs(i)ən/
Mehvar tasnifi
	Davr 18 August 1989
Katta yarim oʻqi	73 548.26 km
Ekssentrisiteti	0.001393 ± 0.00008
Orbital davri	0.55465332 ± 0.00000001 d
Chekinish	0.251 ± 0.009° (to Neptune equator) ; 0.205° (to local Laplace plane) ;
Tabiiy yoʻldoshi	Neptune
Fizik tasnifi
Oʻlchamlari	216 × 204 × 168 km (± ~10 km)
Oʻrtacha radiusi	97 ± 5.4 km
Yuzasi	118,236.98 km2
Hajmi	~3.5×106 km³
Massasi	~4.2×1018 kg (estimate)
Zichlik	~1.2 g/cm3 (estimate)
Erkin tushish tezlanishi (ekvatorda)	~Andoza:Gr m/s2
Ikkinchi kosmik tezlik	~Andoza:V2 km/s
Aylanish davri	synchronous
Ekliptikaga ogʻish burchagi	zero
Albedo	0.09
Harorat	~51 K mean (estimate)
Koʻrinma yulduz kattaligi	21.5

Larissa, shuningdek, Neptun nomi bilan ham tanilgan VII - Neptunning beshinchi eng yaqin ichki tabiiy yo'ldoshi. U yunon mifologiyasida Poseidon (Neptun) ni sevuvchi va Gretsiyaning Fesaliya shahridagi shaharning shu nomdagi nimfasi Larissa sharafiga nomlangan.

Kashfiyoti[tahrir | manbasini tahrirlash]

U birinchi marta Garold J. Reitsema, Uilyam B. Xabbard, Larri A. Lebofskiy va Devid J. Tolen tomonidan 198-yil 24-mayda tasodifiy yerga asoslangan yulduz okkultatsiyasi kuzatuvlari asosida S/1981 vaqtinchalik belgisini hisobga olgan holda kashf etilgan. 1981-yil 29-mayda e'lon qilingan Oy 1989-yilda Voyager 2 parvozi paytida topildi va uning orbitasidagi yagona ob'ekt ekanligi tasdiqlandi , shundan so'ng u S/1989 qo'shimcha belgisini oldi. 1989-yil 2-avgustda Stiven P. Sinnottning e'lonida "5 kun davomida olingan 10 ta kadr" haqida so'z bordi, bu esa tiklanish sanasini 28-iyuldan oldinroq beradi. Bu nom 1991-yil 16-sentabrda berilgan.

Xususiyatlari[tahrir | manbasini tahrirlash]

*Voyager 2* tomonidan tasvirlangan Larissaning yonma-yon taqqoslashi va o'ngdagi takomillashtirilgan versiyasi

Neptunning to'rtinchi eng katta sun'iy yo'ldoshi Larissa shakli notekis (sharsimon bo'lmagan) va kuchli kraterga o'xshaydi, hech qanday geologik o'zgarishlar belgisi yo'q. Ehtimol, Larisa, Tritonning boshqa sun'iy yo'ldoshlari singari, Neptunning asl sun'iy yo'ldoshlari parchalaridan qayta to'plangan vayronalar uyasi bo'lib, ular Oyning o'ta eksantrik boshlang'ich orbitasiga tushib qolganidan so'ng Triton tomonidan harakatlar natijasida buzilgan.

Larissaning orbitasi deyarli aylana shaklida va Neptunning sinxron orbita radiusidan pastda joylashgan, shuning uchun u suv oqimining sekinlashishi tufayli asta-sekin ichkariga aylanadi va oxir-oqibat Neptun atmosferasiga ta'sir qilishi yoki to'lqinlarning cho'zilishi tufayli Roche chegarasidan o'tib, sayyora halqasiga bo'linishi mumkin. Triton oxir-oqibat Neptun bilan to'qnashadi yoki sayyora halqasiga aylanadi.

Qidiruv[tahrir | manbasini tahrirlash]

Larissaga faqat Voyager 2 tashrif buyurgan.^[13] Zond Larissaning kraterlangan yuzasini ko'rsatadigan fotosuratlarini olishga muvaffaq bo'ldi.

Manbalar[tahrir | manbasini tahrirlash]

↑ „Larissa In Depth“. solarsystem.nasa.gov/. Qaraldi: 2020-yil 3-sentyabr.
↑ Andoza:MW
↑ Boccaccio (1974) The book of Theseus
↑ Livy (1850 trans.) The history of Rome, v. 3
↑ Bell (1790) Bell's New pantheon
↑ Manba xatosi: Invalid <ref> tag; no text was provided for refs named Jacobson2004
↑ ^7,0 ^7,1 Manba xatosi: Invalid <ref> tag; no text was provided for refs named Showalter2019
↑ ^8,0 ^8,1 Manba xatosi: Invalid <ref> tag; no text was provided for refs named Karkoschka2003
↑ Manba xatosi: Invalid <ref> tag; no text was provided for refs named Williams2008-nssdc
↑ „Larissa In Depth“. solarsystem.nasa.gov/. Qaraldi: 2020-yil 3-sentyabr.
↑ Manba xatosi: Invalid <ref> tag; no text was provided for refs named Stooke1994
↑ ^12,0 ^12,1 ^12,2 Manba xatosi: Invalid <ref> tag; no text was provided for refs named jplssd
↑ „Larissa Facts“. factsjustforkids.com. Qaraldi: 3-sentabr 2020-yil.

Havolalar[tahrir | manbasini tahrirlash]

NASAning Quyosh tizimini o'rganish bo'yicha Larissa profili
Neptunning ma'lum sun'iy yo'ldoshlari (Skott S. Sheppard tomonidan)

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[NASA_SSE-1] „Larissa In Depth“. solarsystem.nasa.gov/. Qaraldi: 2020-yil 3-sentyabr.

[2] Andoza:MW

[3] Boccaccio (1974) The book of Theseus

[4] Livy (1850 trans.) The history of Rome, v. 3

[5] Bell (1790) Bell's New pantheon

[Jacobson2004-6] Manba xatosi: Invalid <ref> tag; no text was provided for refs named Jacobson2004

[Showalter2019-7] 7,0 ^7,1 Manba xatosi: Invalid <ref> tag; no text was provided for refs named Showalter2019

[Karkoschka2003-8] 8,0 ^8,1 Manba xatosi: Invalid <ref> tag; no text was provided for refs named Karkoschka2003

[Williams2008-nssdc-9] Manba xatosi: Invalid <ref> tag; no text was provided for refs named Williams2008-nssdc

[NASA_BTN-10] „Larissa In Depth“. solarsystem.nasa.gov/. Qaraldi: 2020-yil 3-sentyabr.

[Stooke1994-11] Manba xatosi: Invalid <ref> tag; no text was provided for refs named Stooke1994

[jplssd-13] 12,0 ^12,1 ^12,2 Manba xatosi: Invalid <ref> tag; no text was provided for refs named jplssd

[FJFK:_Larissa_Facts-16] „Larissa Facts“. factsjustforkids.com. Qaraldi: 3-sentabr 2020-yil.

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