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61
61. पंचसंवच्छरियस्स णं गँगस्स रिदुमासेणं मिजमाणस्स एगसट्टि उदुमासा पण्णत्ता। मंदरस्स णं पव्वतस्स पढमे कंडे एगसटुिं जोयणसहस्साई उड्डूंउच्चत्तेणं पण्णत्ते। चंदमंडले णं एगसट्ठिविभागभतिए समंसे पण्णत्ते। एवं सूरस्स वि।
_ In pentad-year cycle (of yuga year) sixty-one seasonal months are expounded. The height of the first stratum (kānda) of the mount Meru is expounded sixty one thousand yojana. The (each) fraction of lunar circle (candramandala) divided by-sixty-one portion [of ayojana], is expounded as even [56]. Likewise, (to be described about) the diurnal circle(sūryamandala) also. 1. सविउदु खं० हे १ ला २॥ 2. प्रतिषु पाठा:-'विभागभतिए खं० हे १ ला २। विभागहाइए जे०। विभइ ला १। विभागविभाइए हे २। विभागविभाइए मु०। “एगसट्ठि त्ति योजनस्य एकषष्टितमै गैः विभाजितं विभागैर्व्यवस्थापितं समांशं समविभागं प्रज्ञप्तम्"-अटी०॥
Notes A. Seasonal month (rtu māsa): Yuga in Jaina astronomical system refers to a five-year cycle of Jaina luni-solar fixed calendar. There are five years (samvatsara) in ayuga (pentad) years, namely: 1. Lunar year (candra samvatasara), 2. Lunar year, 3. Increased year (abhivardhitą samvatsara) (denoting lunar year with an intercalary lunar month), 4. Lunar year (candra samvatasara) and 5. Abhivardhita samvatsara. Every lunar month is of 297 days, therefore a lunar year is of 2932 x 12 i.e35412 days. Each increased month has 31121 days. An increased year has 31127 days x 12 i.e. 383-44 days. Thus total number of days in five year cycle is 35412 x3 +38344-x 2 = 1830 days. Each seasonal month has thirty days therefore number of seasonal months in a pentad year cycle is (1830 divided by 30) 61. B. Equal portion (samansa) in Jambudviprajfiapti the dimension of moon and sun is 56/61 part and 48/61 part of a yojana, respectively. Therefore, 56 parts and 48 parts of their respective dimensions is 1/61 yojana and is equal.
1. Abhayadeva, p. 75. 2. Jambudviprajnapti, Ladnun, section (vaksa) 4.
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