Sūrya Siddhānta · Chapter 11 of 14
Chapter 11: Certain malignant aspects of the sun and moon
23 verses. Each section gives the verses, what they state, and, where they compute, the functions that compute them (in SuryaSiddhantaBurgess.js, each checked by a test citing the verse).
11.1-2 · computed
vaidhrta and vyatipata defined by the sum of longitudes and equal declination
1. ekāyanagatau syātāṃ sūryacandramasau yadā/
tadyutau maṇḍale krāntyos tulyatve vaidhṛtābhidhah//
2. viparītāyanagatau candrārkau krāntiliptikā/
samās tadā vyatīpāto bhagaṇārdhe tayor yutau//
Computed by: pataState
11.3-5 · descriptive (nothing to compute)
the fire of their gaze; the name; its form (mythic)
3. tulyāṃśujālasamparkāt tayos tu pravahāhatah/
taddṛkkrodhabhavo vahnir lokābhāvāya jāyate//
4. vināśayati pāto +asmin lokānām asakṛd yatah/
vyatīpātah prasiddho +ayaṃ sañjñābhedena vaidhṛtah//
5. sa kṛṣṇo dāruṇavapur lohitākṣo mahodarah/
sarvāniṣṭakaro raudro bhūyo bhūyah prajāyate//
11.6-8 · computed
when the sum is near a circle or half-circle; past or to come by the quadrant
6. bhāskarendvor bhacakrāntaś cakrārdhāvadhisaṃsthayoh/
dṛktulyasādhitāṃśādiyuktayoh svāv apakramau//
7. athaujapadagasyendoh krāntir vikṣepasaṃskṛtā/
yadi syād adhikā bhānoh krānteh pāto gatas tadā//
8. ūnā cet syāt tadā bhāvī vāmaṃ yugmapadasya ca/
padānyatvaṃ vidhoh krāntivikṣepāc ced viśudhyati//
Computed by: pataStatenextPata
11.9-15 · computed
the moment by repetition until the declinations agree; its time and half-duration
9. krāntyor jye trijyayābhyaste parakrāntijyayoddhṛte/
taccāpāntaram ardhaṃ vā yojyaṃ bhāvini śītagau//
10. śodhyaṃ candrād gate pāte tatsūryagatitāḍitam/
candrabhuktyā hṛtaṃ bhānau liptādi śaśivat phalam//
11. tadvacchaśāṅkapātasya phalaṃ deyaṃ viparyayāt/
karmaitad asakṛt tāvad yāvad krāntī same tayoh//
12. krāntyoh samatve pāto +atha prakṣiptāṃśonite vidhau/
hīne +ardharātrikād yāto bhāvī tātkālike +adhike//
13. sthirīkṛtārdharātrendvor dvayor vivaraliptikāh/
ṣaṣṭighnyaś candrabhuktyāptāh pātakālasya nāḍikāh//
14. ravīndumānayogārdhaṃ ṣaṣṭyā saṅguṇya bhājayet/
tayor bhuktyantareṇāptaṃ sthityardhaṃ nāḍikādi tat//
15. pātakālah sphuṭo madhyah so +api sthityardhavarjitah/
tasya sambhavakālah syāt tat saṃyukto +antyasāṃjñitah//
Computed by: pata
11.16-18 · descriptive (nothing to compute)
the period called inauspicious; the observances recommended (recorded, not computed)
16. ādyantakālayor madhyah kālo jñeyo +atidāruṇah/
prajvalaj jvalanākārah sarvakarmasu garhitah//
17. ekāyanagataṃ yāvad arkendvor maṇḍalāntaram/
sambhavas tāvad evāsya sarvakarmavināśakṛt//
18. snānadānajapaśrāddhavratahomādikarmabhih/
prāpyata sumahacchreyas tatkālajñānatas tathā//
11.19 · computed
near the equator it may occur a second time, on the other side of the equator; away from it (near the solstice) it may fail: both computed, within the module's 20-degree window
19. ravīndvos tulyatā krāntyor viṣuvatsannidhau yadā/
dvir bhaved dhi tadā pātah syād abhāvo viparyayāt//
Computed by: patapataRoots
11.20 · computed
the third vyatipata: the sum by the portion of an asterism between 16 and 17
20. śasāṅkārkayuter liptā bhabhogena vibhājitāh/
labdhaṃ saptadaśānto +anyo vyatīpātas tṛtīyakah//
Computed by: isThirdVyatipata
11.21 · computed
junctions of asterisms (bhasandhi) and gandanta
21. sārpendrapauṣṇyadhiṣṇyānām antyāh pādā bhasandhayah/
tadagrabheṣv ādyapādo gaṇḍāntaṃ nāma kīrtyate//
Computed by: asterismJunction
11.22-23 · descriptive (nothing to compute)
the trios to be avoided; the close of the revelation
22. vyatīpātatrayaṃ ghoraṃ gaṇḍāntatritayaṃ tathā/
etad bhasandhitritayaṃ sarvakarmasu varjayet//
23. ity etat paramaṃ puṇyaṃ jyotiṣāṃ caritaṃ hitam/
rhasyaṃ mahad ākhyātaṃ kim anyacchrotum icchasi// [bhūgola]
Sanskrit: Michio Yano's e-text, GRETIL, SUB Göttingen (version 2020-07-31) (source); editions: B: Hall, Bibliotheca Indica 79, Calcutta 1854; C: Kāśī Saṃskṛta Granthamālā 144, 4th ed. 1987; D: with Sudhākara Dvivedī's commentary, 1987. Variants in ( ) after a word marked *. Licence: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0); shared here unaltered except for layout and one correction: The e-text labels the second half of II.34 "3.34b"; it is placed under II.34 here.Chapter titles, verse numbers and the ledger follow E. Burgess, Translation of the Sûrya-Siddhânta (JAOS 6, 1860).