{"id":"vidhyamitra:day:1981-09-11:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1981-09-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-09-11","date_display":"September 11, 1981 CE","panchanga":{"method":"Sūrya Siddhānta (Burgess 1860 text, no bīja): Sun and Moon by the equation of the apsis with the 24-sine table","engine_version":"3.0 (text of the Sūrya Siddhānta)","accuracy_note":"Siddhāntic places, not the observed sky. Against the observed sky 1900-2030 the Moon averages -0.06 deg (max 3.6 deg), the Sun -0.21 deg (max 0.6 deg).","tradition_chain":"Sūrya Siddhānta, tr. E. Burgess (JAOS 6, 1860): I.29-47, II.15-45","input":{"year":1981,"month":9,"day":11,"hour":5,"minute":42.422,"second":0,"calendar":"gregorian"},"julian_day":2444858.737793,"kali_year":5083,"ahargana":1856393.2378,"sun":{"sidereal_longitude":144.0722,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":286.2646,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":142.1925,"elapsed_within_tithi_degrees":10.1925},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.2646,"elapsed_within_degrees":6.2646},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":70.3368},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"sky":{"method":"Sūrya Siddhānta four-step process (II.43-44), tabular sines, even/odd epicycles, no bīja; verified against Burgess 1860 worked example","engine_version":"4.0 (Pūrṇa — Burgess text, 2026-09-26)","tradition_sources":"Sūrya Siddhānta Ch. I-III, tr. E. Burgess (JAOS 6, 1860)","input":{"year":1981,"month":9,"day":11,"hour":5,"minute":42.422,"calendar":"gregorian"},"julian_day":2444858.737793,"ahargana":1856393.2378,"kali_year":5083,"ayanamsa":22.2361,"grahas":{"sun":{"sidereal_longitude":144.0722,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":286.2646,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":-0.541},"mars":{"sidereal_longitude":101.2844,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":169.0669,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":173.7577,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":186.2377,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":162.2251,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":99.3527,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":279.3527,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta (Burgess 1860 text, no bīja): Sun and Moon by the equation of the apsis with the 24-sine table","engine_version":"3.0 (text of the Sūrya Siddhānta)","accuracy_note":"Siddhāntic places, not the observed sky. Against the observed sky 1900-2030 the Moon averages -0.06 deg (max 3.6 deg), the Sun -0.21 deg (max 0.6 deg).","tradition_chain":"Sūrya Siddhānta, tr. E. Burgess (JAOS 6, 1860): I.29-47, II.15-45","input":{"year":1981,"month":9,"day":11,"hour":5,"minute":42.422,"second":0,"calendar":"gregorian"},"julian_day":2444858.737793,"kali_year":5083,"ahargana":1856393.2378,"sun":{"sidereal_longitude":144.0722,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":286.2646,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":142.1925,"elapsed_within_tithi_degrees":10.1925},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":286.2646,"elapsed_within_degrees":6.2646},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":70.3368},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.541,"elongation":142.192},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.541,"opposition_distance":37.808}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":513,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Dvādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","sun_rashi":"Siṃha"},"precedence":2},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13,"kala_rule":"pradosha-vrata"},{"tithi_number":28,"kala_rule":"pradosha-vrata"}]},"precedence":7}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Dedicated festival walk for Onam (Vāmana / King Bali) · Pradoṣa Vrata is not live yet; Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1981-09-11T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 11, 1981 CE · Vidhyamitra","description":"Vedic pañchāṅga for September 11, 1981 CE: Śukla Dvādaśī · Śravaṇa.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1981-09-11","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1981-09-11","sa":"https://sa.vidhyamitra.com/day/1981-09-11","hi":"https://hi.vidhyamitra.com/day/1981-09-11","x-default":"https://vidhyamitra.com/day/1981-09-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-10-08T12:30:52.001Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-10-08T12:30:52.001Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}