{"id":"vidhyamitra:city-day:solapur:1981-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/solapur/1981-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-20","date_display":"December 20, 1981 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1981,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444958.770833,"kali_year":5083,"ahargana":1856493.2708,"sun":{"sidereal_longitude":244.1697,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":171.9197,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":287.75,"elapsed_within_tithi_degrees":11.75},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.9197,"elapsed_within_degrees":11.9197},"yoga":{"number":5,"name":"Śobhana","sum_longitude":56.0894},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":1981,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444958.770833,"ahargana":1856493.2708,"kali_year":5083,"ayanamsa_lahiri":23.6011,"grahas":{"sun":{"sidereal_longitude":244.46675299999993,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":175.067453,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false,"latitude":4.3993},"mars":{"sidereal_longitude":158.483653,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":250.04015300000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":191.01335300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":282.946953,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":176.81935299999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":94.0524,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":274.0524,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1981,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444958.770833,"kali_year":5083,"ahargana":1856493.2708,"sun":{"sidereal_longitude":244.1697,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":171.9197,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":287.75,"elapsed_within_tithi_degrees":11.75},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.9197,"elapsed_within_degrees":11.9197},"yoga":{"number":5,"name":"Śobhana","sum_longitude":56.0894},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.399,"elongation":72.25},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.399,"opposition_distance":107.75}},"eclipse_window_40days":[]},"city":{"slug":"solapur","name":"Solapur, Maharashtra","lat":17.6599,"lon":75.9064,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"solapur","name":"Solapur, Maharashtra","lat":17.6599,"lon":75.9064,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:52","sunsetLocal":"17:57","solarNoonLocal":"12:25","dayLengthHours":11.071115033290901,"dayLengthDisplay":"11 Hours 04 Mins 16 Secs","nightLengthDisplay":"12 Hours 55 Mins 44 Secs","moonriseLocal":"01:54","moonsetLocal":"13:40","rahuKala":{"name":"Rāhu Kāla","start":"16:34","end":"17:57","startHours":16.560376178776274,"endHours":17.944265557937637,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:25","end":"13:48","startHours":12.408708041292186,"endHours":13.79259742045355,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:11","end":"16:34","startHours":15.176486799614912,"endHours":16.560376178776274,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:50","startHours":9.456410699081278,"endHours":9.825447866857642,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:20","end":"07:38","startHours":7.33444698436719,"endHours":7.629676718588281,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:47","startHours":12.039670873515822,"endHours":12.77774520906855,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:24","end":"06:08","startHours":5.3970018535412825,"endHours":6.135076189094009,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:57","end":"06:52","startHours":5.9505576052058275,"endHours":6.873150524646736,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:00","startHours":14.253893880174003,"endHours":14.991968215726729,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.744265557937638,"endHours":18.144265557937636,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:24","startHours":17.944265557937637,"endHours":18.40556201765809,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.694265557937637,"endHours":19.444265557937637,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:47","startHours":24.039670873515824,"endHours":24.77774520906855,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:52","end":"08:15","startHours":6.873150524646736,"endHours":8.2570399038081,"quality":"inauspicious"},{"name":"Chala","start":"08:15","end":"09:38","startHours":8.2570399038081,"endHours":9.640929282969461,"quality":"neutral"},{"name":"Labha","start":"09:38","end":"11:01","startHours":9.640929282969461,"endHours":11.024818662130823,"quality":"auspicious"},{"name":"Amṛta","start":"11:01","end":"12:25","startHours":11.024818662130823,"endHours":12.408708041292186,"quality":"auspicious"},{"name":"Kāla","start":"12:25","end":"13:48","startHours":12.408708041292186,"endHours":13.79259742045355,"quality":"inauspicious"},{"name":"Śubha","start":"13:48","end":"15:11","startHours":13.79259742045355,"endHours":15.176486799614912,"quality":"auspicious"},{"name":"Roga","start":"15:11","end":"16:34","startHours":15.176486799614912,"endHours":16.560376178776274,"quality":"inauspicious"},{"name":"Udveg","start":"16:34","end":"17:57","startHours":16.560376178776274,"endHours":17.944265557937637,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:57","end":"19:34","startHours":17.944265557937637,"endHours":19.560376178776274,"quality":"auspicious"},{"name":"Roga","start":"19:34","end":"21:11","startHours":19.560376178776274,"endHours":21.176486799614914,"quality":"inauspicious"},{"name":"Udveg","start":"21:11","end":"22:48","startHours":21.176486799614914,"endHours":22.79259742045355,"quality":"inauspicious"},{"name":"Chala","start":"22:48","end":"00:25","startHours":22.79259742045355,"endHours":24.408708041292186,"quality":"neutral"},{"name":"Labha","start":"00:25","end":"02:01","startHours":24.408708041292186,"endHours":26.024818662130823,"quality":"auspicious"},{"name":"Amṛta","start":"02:01","end":"03:38","startHours":26.024818662130823,"endHours":27.64092928296946,"quality":"auspicious"},{"name":"Kāla","start":"03:38","end":"05:15","startHours":27.64092928296946,"endHours":29.2570399038081,"quality":"inauspicious"},{"name":"Śubha","start":"05:15","end":"06:52","startHours":29.2570399038081,"endHours":30.873150524646736,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:52","end":"07:52","startHours":6.873150524646736,"endHours":7.873150524646736,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:52","end":"08:52","startHours":7.873150524646736,"endHours":8.873150524646736,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:52","end":"09:52","startHours":8.873150524646736,"endHours":9.873150524646736,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:52","end":"10:52","startHours":9.873150524646736,"endHours":10.873150524646736,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:52","end":"11:52","startHours":10.873150524646736,"endHours":11.873150524646736,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:52","end":"12:52","startHours":11.873150524646736,"endHours":12.873150524646736,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:52","end":"13:52","startHours":12.873150524646736,"endHours":13.873150524646736,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:52","end":"14:52","startHours":13.873150524646736,"endHours":14.873150524646736,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:52","end":"15:52","startHours":14.873150524646736,"endHours":15.873150524646736,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:52","end":"16:52","startHours":15.873150524646736,"endHours":16.873150524646736,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:52","end":"17:52","startHours":16.873150524646736,"endHours":17.873150524646736,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:52","end":"18:52","startHours":17.873150524646736,"endHours":18.873150524646736,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:52","end":"19:52","startHours":18.873150524646736,"endHours":19.873150524646736,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:52","end":"20:52","startHours":19.873150524646736,"endHours":20.873150524646736,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:52","end":"21:52","startHours":20.873150524646736,"endHours":21.873150524646736,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:52","end":"22:52","startHours":21.873150524646736,"endHours":22.873150524646736,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:52","end":"23:52","startHours":22.873150524646736,"endHours":23.873150524646736,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:52","end":"00:52","startHours":23.873150524646736,"endHours":24.873150524646736,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:52","end":"01:52","startHours":24.873150524646736,"endHours":25.873150524646736,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:52","end":"02:52","startHours":25.873150524646736,"endHours":26.873150524646736,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:52","end":"03:52","startHours":26.873150524646736,"endHours":27.873150524646736,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:52","end":"04:52","startHours":27.873150524646736,"endHours":28.873150524646736,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:52","end":"05:52","startHours":28.873150524646736,"endHours":29.873150524646736,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:52","end":"06:52","startHours":29.873150524646736,"endHours":30.873150524646736,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.422379579331263,"eotMinutes":1.851917522468745,"ayanamsa":23.6011}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Navamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"solapur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 20, 1981 CE · Solapur, Maharashtra · Vidhyamitra","description":"December 20, 1981 CE for Solapur, Maharashtra: Kṛṣṇa Navamī, sūryodaya 06:52, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/solapur/1981-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/solapur/1981-12-20","sa":"https://sa.vidhyamitra.com/city/solapur/1981-12-20","hi":"https://hi.vidhyamitra.com/city/solapur/1981-12-20","x-default":"https://vidhyamitra.com/city/solapur/1981-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:27:32.757Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-31T06:27:32.757Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:27:32.757Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}