Grian

Grian
Cineál	G-type main-sequence star (en)
Cineál speictreach (réalta)	G2V[1]
Réad tuismitheora	Galactic Center of Milky Way (en)
Réad linbh	Mearcair Véineas Domhan Mars crios astaróideach Iúpatar Satarn Úránas Neiptiún Crios Kuiper Makemake Plútón 4888 Doreen 4886 Kojima 4882 Divari 4871 Riverside 4889 Praetorius 4838 Billmclaughlin 4853 Marielukac 4924 Hiltner 4781 Sládkovič 4851 Vodop'yanova 4899 Candace 4891 Blaga 4879 Zykina 4824 Stradonice 4911 Rosenzweig 4892 Chrispollas 4855 Tenpyou 4869 Piotrovsky 4857 Altgamia 4885 Grange 4873 Fukaya 4840 Otaynang 4912 Emilhaury 4940 Polenov 4823 Libenice 4821 Bianucci 4815 Anders 4825 Ventura 4819 Gifford 4826 Wilhelms 4831 Baldwin 4890 Shikanosima 4870 Shcherban' 4861 Nemirovskij 4789 Sprattia 4779 Whitley 4806 Miho 4684 Bendjoya 4785 Petrov 4777 Aksenov 4783 Wasson 4682 Bykov 4794 Bogard 4700 Carusi 4788 Simpson 4787 Shul'zhenko 4675 Ohboke 4698 Jizera 4689 Donn 4699 Sootan 4694 Festou 4696 Arpigny 4680 Lohrmann 4693 Drummond 4811 Semashko 4813 Terebizh 4812 Hakuhou 4810 Ruslanova 4669 Høder 4643 Cisneros 4640 Hara 4638 Estens 4612 Greenstein 4634 Shibuya 4621 Tambov 4774 Hobetsu 4733 ORO 4623 Obraztsova 4624 Stefani 4636 Chile 4713 Steel 4665 Muinonen 4676 Uedaseiji 4670 Yoshinogawa 4739 Tomahrens 4550 Royclarke 4726 Federer 4525 Johnbauer 4745 Nancymarie 4766 Malin 4683 Veratar 4687 Brunsandrej 4681 Ermak 4667 Robbiesh 4685 Karetnikov 3971 Voronikhin 3991 Basilevsky 3986 Rozhkovskij 3856 Lutskij 4582 Hank 3974 Verveer 4530 Smoluchowski 3843 OISCA 3842 Harlansmith 4547 Massachusetts 3885 Bogorodskij 3880 Kaiserman 4563 Kahnia 4531 Asaro 4601 Ludkewycz 4704 Sheena 4747 Jujo 4740 Veniamina 4762 Dobrynya 4724 Brocken 4761 Urrutia 4728 Lyapidevskij 4735 Gary 4767 Sutoku 4751 Alicemanning 4664 Hanner 4671 Drtikol 4679 Sybil 4677 Hiroshi 4729 Mikhailmil' 4725 Milone 4734 Rameau 4717 Kaneko 4723 Wolfgangmattig 4727 Ravel 4533 Orth 4731 Monicagrady 4710 Wade 4705 Secchi 4508 Takatsuki 3954 Mendelssohn 3977 Maxine 3933 Portugal 3997 Taga 3932 Edshay 3984 Chacos 3961 Arthurcox 3876 Quaide 3882 Johncox 3898 Curlewis 3926 Ramirez 3952 Russellmark 3929 Carmelmaria 3966 Cherednichenko 3987 Wujek 3925 Tret'yakov 3947 Swedenborg 3959 Irwin 3996 Fugaku 3879 Machar 3837 Carr 3853 Haas 3867 Shiretoko 4522 Britastra 3886 Shcherbakovia 3980 Hviezdoslav 3852 Glennford 3828 Hoshino 3830 Trelleborg 3875 Staehle 4540 Oriani 4590 Dimashchegolev 3865 Lindbloom 3835 Korolenko 3863 Gilyarovskij 3871 Reiz 3791 Marci 3783 Morris 3756 Ruscannon 3817 Lencarter 3775 Ellenbeth 3760 Poutanen 3764 Holmesacourt 3779 Kieffer 3758 Karttunen 3819 Robinson 3703 Volkonskaya 3726 Johnadams 3640 Gostin 3602 Lazzaro 3684 Berry 3652 Soros 4070 Rozov 4504 Jenkinson 3955 Bruckner 3945 Gerasimenko 3944 Halliday 3943 Silbermann 3633 Mira 3642 Frieden 3700 Geowilliams 3728 IRAS 3682 Welther 3695 Fiala 3715 Štohl 3921 Klement'ev 3939 Huruhata 3981 Stodola 3964 Danilevskij 3995 Sakaino 3973 Ogilvie 3942 Churivannia 3970 Herran 3878 Jyoumon 3891 Werner 3677 Magnusson 3736 Rokoske 3599 Basov 3668 Ilfpetrov 3623 Chaplin 3696 Herald 3692 Rickman 3593 Osip 3698 Manning 3743 Pauljaniczek 3624 Mironov 3616 Glazunov 3732 Vávra 3690 Larson 3637 O'Meara 3938 Chapront 3937 Bretagnon 3941 Haydn 3688 Navajo 3922 Heather 3738 Ots 3909 Gladys 3826 Handel 3679 Condruses 3675 Kemstach 3739 Rem 3659 Bellingshausen 3716 Petzval 3786 Yamada 3685 Derdenye 3621 Curtis 3565 Ojima 3531 Cruikshank 3511 Tsvetaeva 3575 Anyuta 3601 Velikhov 3669 Vertinskij 3529 Dowling 3614 Tumilty 3530 Hammel 3578 Carestia 3589 Loyola 3371 Giacconi 3470 Yaronika 3433 Fehrenbach 3387 Greenberg 3383 Koyama 3366 Gödel 3518 Florena 3411 Debetencourt 3330 Gantrisch 3528 Counselman 3403 Tammy 3447 Burckhalter 3702 Trubetskaya 3454 Lieske 3243 Skytel 3561 Devine 3418 Izvekov 3332 Raksha 3249 Musashino 3404 Hinderer 3430 Bradfield 3373 Koktebelia 3517 Tatianicheva 3466 Ritina 3269 Vibert-Douglas 3264 Bounty 3291 Dunlap 3273 Drukar 3456 Etiennemarey 3521 Comrie 3537 Jürgen 3345 Tarkovskij 3441 Pochaina 3591 Vladimirskij 3390 Demanet 3446 Combes 3429 Chuvaev 3459 Bodil 3339 Treshnikov 3440 Stampfer 3263 Bligh 3571 Milanštefánik 3480 Abante 3336 Grygar 3358 Anikushin 3253 Gradie 3175 Netto 3252 Johnny 3168 Lomnický Štít 3118 Claytonsmith 3185 Clintford 2849 Shklovskij 3238 Timresovia 3260 Vizbor 3235 Melchior 3203 Huth 3194 Dorsey 3057 Mälaren 3090 Tjossem 3242 Bakhchisaraj 3217 Seidelmann 3191 Svanetia 3209 Buchwald 3159 Prokof'ev 3215 Lapko 2891 McGetchin 3126 Davydov 2978 Roudebush 3042 Zelinsky 3065 Sarahill 3119 Dobronravin 3155 Lee 3087 Beatrice Tinsley 3140 Stellafane 2884 Reddish 3131 Mason-Dixon 3100 Zimmerman 3075 Bornmann 2883 Barabashov 3085 Donna 2844 Hess 2967 Vladisvyat 2879 Shimizu 2922 Dikan'ka 2861 Lambrecht 2949 Kaverznev 2856 Röser 3204 Lindgren 2931 Mayakovsky 2878 Panacea 2832 Lada 2942 Cordie 2842 Unsöld 2925 Beatty 2990 Trimberger 2860 Pasacentennium 2877 Likhachev 2869 Nepryadva 2845 Franklinken 2853 Harvill 2881 Meiden 2983 Poltava 2916 Voronveliya 2035 Stearns 2577 Litva 4555 Josefapérez 4852 Pamjones 2810 Lev Tolstoj 2905 Plaskett 2745 San Martín 4772 Frankdrake 4881 Robmackintosh 2821 Slávka 2995 Taratuta 2833 Radishchev 4784 Samcarin 3727 Maxhell 2748 Patrick Gene 2343 Siding Spring 2285 Ron Helin 2392 Jonathan Murray 3797 Ching-Sung Yu 3117 Niepce 3795 Nigel 3833 Calingasta 3689 Yeates 4913 Wangxuan 3306 Byron 2834 Christy Carol 3412 Kafka 4661 Yebes 4943 Lac d'Orient 2744 Birgitta 2863 Ben Mayer 2874 Jim Young 2629 Rudra 2897 Ole Römer 2900 Luboš Perek 5998 Sitenský 4941 Yahagi 4949 Akasofu 3800 Karayusuf 4656 Huchra 3806 Tremaine 4576 Yanotoyohiko 4632 Udagawa 3296 Bosque Alegre 4878 Gilhutton 11792 Sidorovsky 21000 L'Encyclopédie 3737 Beckman 3270 Dudley 3402 Wisdom 4641 Ayako 4858 Vorobjov 4759 Åretta C/1811 F1 (Great comet) (30001) 2000 AU195 26P/Grigg-Skjellerup 11P/Tempel-Swift-LINEAR 32P/Comas Sola 21284 Pandion 65803 Didymos 13868 Catalonia 95962 Copito 134124 Subirachs 1998 SN165 96205 Ararat 72037 Castelldefels 57140 Gaddi 274301 Wikipedia 2004 PR107 202778 Dmytria (30003) 2000 AO236 (8404) 1995 AN 614470 Flordeneu (57626) 2001 TE165 1927 LA (482387) 2012 AD14 2012 CP8 2012 AD1 2013 GR 2012 KH8 2010 GB174 (en) 2008 KV2 2012 VP113 376574 Michalkusiak (486958) 2014 MU69 348407 Patkósandrás 420779 Świdwin 129109 (2004 XF32) (81522) 2000 HW7 (156810) 2003 BP49 333508 Voiture 369423 Quintegr'al 354659 Boileau 423205 Echezeaux 375043 Zengweizhou 332084 Vasyakulbeda 376029 Blahová 450931 Coculescu 328305 Jackmcdevitt 359103 Ottopiene 295472 Puy (523794) 2015 RR245 325369 Shishilov 333636 Reboul 336694 Fey 361183 Tandon 381458 Moiseenko 435552 Morin 369088 Marcus 293499 Wolinski 386622 New Zealand 308197 Satrapi 281772 Matttaylor 320153 Eglitis 302849 Richardboyle 337380 Lenormand 344641 Szeleczky 358894 Demetrescu 432361 Rakovski 418220 Kestutis 378721 Thizy 365761 Popovici 434453 Ayerdhal 341958 Chrétien 290074 Donasadock 361450 Houellebecq 337166 Ivanartioukhov 320880 Cabu 274856 Rosendosalvado 308856 Daniket 400308 Antonkutter 378669 Rivas 410619 Fabry 436048 Fritzhuber (514107) Kaʻepaokaʻawela Elon Musk's Tesla Roadster (en) C/2018 F4 (PANSTARRS) 541132 Leleakuhonua 2019 AQ3 2018 AG37 C/2019 Y4 (ATLAS) C/2020 F3 (NEOWISE) C/2020 F8 (SWAN) 2020 HA10 Ceres Haumea Eris Pallas Vesta 138P/Shoemaker-Levy 7 19P/Borrelly 101955 Bennu 102 Miriam (12300) 1991 RX10 Quaoar
Saintréithe fisiceacha agus réaltmhéadracha
Fad ón Domhan	1 AU
Ga	695,700 km[2]
Leacú	0[1]
Dearbhmhéid	4.83[3]
Méid dhealraitheach (V)	−26.74 (banda V)[1]
Trastomhas uilleach	31.98 ′[4]
Achar dromchla	6,082,000,000,000 km²
Mais	1,988,475 Rg[2] agus 1 M☉[5]
Toirt	1,412,000,000,000,000,000 km³[6]
Meándlús	162.2 g/cm³[6]
Imtharraingt dromchla	274 m/s²[1]
Miotalacht	0.0122[7]
Teocht an dromchla	lár 15,710,000 K[6]
Lonrachas	382,800,000,000,000,000 gigeavata
Aois measta	4.57 gigaannum (en) [8]
Cuid de	An Grianchóras
Le cuid	starraiceacht gréine

Is í an Ghrian (siombail: ) an réalta is mó sa ghrianchóras. Tá an Domhan á timpeallú faoi 150 milliún ciliméadar di, agus glactar leis an meánfhad ón nGrian go dtí an Domhan mar aonad réalteolaíoch. Abhacréalta bhuí is ea an Ghrian, agus í comhdhéanta as an hidrigin, den chuid is mó.

Sroicheann an teocht ar dhromchla na Gréine tuairim is cúig mhíle céim Celsius, ach sa chroílár, áit a bhfuil an t-imoibreoir comhleá ag obair, tá sé i bhfad níos teo fós, mar atá, timpeall ar chúig mhilliún déag de chéimeanna Celsius.

Tá níos mó ná 99 % de mhais an Ghrianchórais comhchruinnithe sa Ghrian, agus is í an Ghrian a choinníonn an saol agus an bheatha ag imeacht ar dhroim an Domhain. Tugann an Ghrian an fuinneamh a chuireann na gaotha ag séideadh agus an aimsir ag athrú. Tríd is tríd, ní bheadh an domhan ann mar is eol dúinn é, ach go bé go bhfuil an Ghrian ann.

Cé go bhfuil an Ghrian i bhfad rógheal le go n-aithneodh súile an duine aon difríochtaí gile uirthi, is féidir le lucht eolaíochta spotaí a fheiceáil ar a dromchla nach bhfuil chomh geal lena dtimpeallacht. Tugtar grianspotaí ar na smáil seo. Tá baint acu le maighnéadas na Gréine, agus iad ag dul i bhflúirse agus i ngainne arís, de réir tréimhse aon bhliain déag.

Ní mór cuimhne a choinneáil air go bhfuil sé an-dainséarach do na súile breathnuithe a dhéanamh ar an nGrian, agus go bhfuil modhanna oibre ar leith ag teastáil leis na dainséir a sheachaint.

1. ↑ ^{1.0 1.1 1.2 1.3} “Sun Fact Sheet”. NASA. Dáta rochtana: 28 Nollaig 2024.
2. ↑ ^{2.0 2.1} Martin Asplund (3 Lúnasa 2016). "Nominal values for selected solar and planetary quantities: IAU 2015 resolution B3" (as Béarla) (2): 41–41. doi:10.3847/0004-6256/152/2/41. 
3. ↑ URL tagartha: https://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html. Foilsitheoir: NASA. Dáta rochtana: 28 Nollaig 2024.
4. ↑ “Sun Fact Sheet”. NASA. Dáta rochtana: 28 Nollaig 2024.
5. ↑ Ráite i: Extrasolar Planets Encyclopaedia. Extrasolar Planets Encyclopaedia exoplanet ID: ka_epaoka_awela--7323. Teanga an tsaothair nó an ainm: Béarla.
6. ↑ ^{6.0 6.1 6.2} URL tagartha: https://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html.
7. ↑ Martin Asplund (2007). "The new solar abundances - Part I: the observations": 76-79. doi:10.1553/CIA147S76. 
8. ↑ Helmut Schlattl (Lúnasa 2002). "The age of the Sun and the relativistic corrections in the EOS" (as Béarla) (3): 1115–1118. doi:10.1051/0004-6361:20020749.