बृहत्संहिता (आचार्य वराहमिहिर - स्थापत्य, खगोल, मौसम व जल विज्ञान)

254 बृहत्संहितायाम् [Adh. XXVIII. Sl. 20-24-

प्रायो ग्रहाणामुदयास्तकाले समागमे मण्डलसङ्क्रमे च ।
पक्षक्षये तीक्ष्णकरायनान्ते वृष्टिर्गतेऽर्के नियमेन चार्द्राम् ॥२०॥
Sloka 20.—Generally there will be rain during the
planets' heliacal rising and setting, at the conjunction of
the non-luminaries with the Moon, at their entering any
of the six Mandalas*, at the end of a fortnight and
a solstice, and certainly when the Sun is passing through
the asterism 'Ardra'

*Vide Adhyaya IX—10-21—supra.

समागमे पतति जलं ज्ञशुक्रयोर्ज्ञजीवयोर्गुरुसितयोश्च सङ्गमे ।
यमारयोः पवनहुताशजं भयं ह्यदृष्टयोरसहितयोश्च सद्ग्रहैः ॥२१॥
Sloka 21.—There will be rain at the conjunction of
Mercury and Venus, of Mercury and Jupiter and of
Jupiter and Venus. But at the conjunction of Mars and
Saturn, there will arise peril from wind and fire, provided
they are neither conjoined with nor aspected by any of
the benefics.

अग्रतः पृष्ठतो वापि ग्रहाः सूर्यावलम्बिनः ।
यदा तदा प्रकुर्वन्ति महीमेकार्णवामिव ॥२२॥
Sloka 22.—When the planets are about to be
eclipsed by the Sun in front or behind (slower planets in
front and faster ones behind), they convert the earth
into an ocean as it were.

प्रविशति यदि खद्योतो जलदसमीपेषु रजनीषु ।
केदारपूरमधिकं वर्षति देवस्तदा नचिरात् ॥२३॥
वर्षत्यपि रटति यदा गोमायुश्च प्रदोषवेलायाम् ।
सप्ताहं दुर्द्दिनमपि तदा पयो नात्र सन्देहः ॥२४॥
Slokas 23-24.—If there be glow-worms at night
near the clouds, before long there will be rain filling all