{"id":"vidhyamitra:city-day:pune:1981-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/pune/1981-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-13","date_display":"January 13, 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":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444617.770833,"kali_year":5082,"ahargana":1856152.2708,"sun":{"sidereal_longitude":269.1023,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":354.5831,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.4807,"elapsed_within_tithi_degrees":1.4807},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.5831,"elapsed_within_degrees":7.9164},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.6854},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444617.770833,"ahargana":1856152.2708,"kali_year":5082,"ayanamsa_lahiri":23.5881,"grahas":{"sun":{"sidereal_longitude":269.18438100000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":354.117681,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false,"latitude":-3.9893},"mars":{"sidereal_longitude":287.036781,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":277.37348099999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":166.62898100000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":248.882381,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":165.93158100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":112.1203,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.1203,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"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":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444617.770833,"kali_year":5082,"ahargana":1856152.2708,"sun":{"sidereal_longitude":269.1023,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":354.5831,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.4807,"elapsed_within_tithi_degrees":1.4807},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.5831,"elapsed_within_degrees":7.9164},"yoga":{"number":20,"name":"Śiva","sum_longitude":263.6854},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.989,"elongation":85.481},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.989,"opposition_distance":94.519}},"eclipse_window_40days":[{"offset_days":7,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776}]},"city":{"slug":"pune","name":"Pune, Maharashtra","lat":18.5204,"lon":73.8567,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"mega","elevation_m":560},"tier2":{"city":{"slug":"pune","name":"Pune, Maharashtra","lat":18.5204,"lon":73.8567,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"mega","elevation_m":560},"sunriseLocal":"07:10","sunsetLocal":"18:17","solarNoonLocal":"12:43","dayLengthHours":11.1151258063021,"dayLengthDisplay":"11 Hours 06 Mins 54 Secs","nightLengthDisplay":"12 Hours 53 Mins 06 Secs","moonriseLocal":"12:11","moonsetLocal":"00:35","rahuKala":{"name":"Rāhu Kāla","start":"15:30","end":"16:53","startHours":15.498933643098418,"endHours":16.88832436888618,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:56","end":"11:20","startHours":9.941370739947368,"endHours":11.33076146573513,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:43","end":"14:07","startHours":12.720152191522892,"endHours":14.109542917310655,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:45","end":"10:08","startHours":9.756118643175666,"endHours":10.12662283671907,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:55","startHours":7.625719530301097,"endHours":7.92212288513582,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:05","startHours":12.34964799797949,"endHours":13.090656385066298,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:25","startHours":5.68057251419823,"endHours":6.4215809012850364,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:14","end":"07:10","startHours":6.236328804513335,"endHours":7.162589288371843,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:19","startHours":14.572673159239908,"endHours":15.313681546326714,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.077715094673945,"endHours":18.477715094673943,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:44","startHours":18.277715094673944,"endHours":18.740845336603197,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.027715094673944,"endHours":19.777715094673944,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:05","startHours":24.34964799797949,"endHours":25.090656385066296,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:10","end":"08:33","startHours":7.162589288371843,"endHours":8.551980014159605,"quality":"inauspicious"},{"name":"Udveg","start":"08:33","end":"09:56","startHours":8.551980014159605,"endHours":9.941370739947368,"quality":"inauspicious"},{"name":"Chala","start":"09:56","end":"11:20","startHours":9.941370739947368,"endHours":11.33076146573513,"quality":"neutral"},{"name":"Labha","start":"11:20","end":"12:43","startHours":11.33076146573513,"endHours":12.720152191522892,"quality":"auspicious"},{"name":"Amṛta","start":"12:43","end":"14:07","startHours":12.720152191522892,"endHours":14.109542917310655,"quality":"auspicious"},{"name":"Kāla","start":"14:07","end":"15:30","startHours":14.109542917310655,"endHours":15.498933643098418,"quality":"inauspicious"},{"name":"Śubha","start":"15:30","end":"16:53","startHours":15.498933643098418,"endHours":16.88832436888618,"quality":"auspicious"},{"name":"Roga","start":"16:53","end":"18:17","startHours":16.88832436888618,"endHours":18.277715094673944,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:17","end":"19:53","startHours":18.277715094673944,"endHours":19.88832436888618,"quality":"inauspicious"},{"name":"Śubha","start":"19:53","end":"21:30","startHours":19.88832436888618,"endHours":21.498933643098418,"quality":"auspicious"},{"name":"Roga","start":"21:30","end":"23:07","startHours":21.498933643098418,"endHours":23.109542917310655,"quality":"inauspicious"},{"name":"Udveg","start":"23:07","end":"00:43","startHours":23.109542917310655,"endHours":24.720152191522892,"quality":"inauspicious"},{"name":"Chala","start":"00:43","end":"02:20","startHours":24.720152191522892,"endHours":26.33076146573513,"quality":"neutral"},{"name":"Labha","start":"02:20","end":"03:56","startHours":26.33076146573513,"endHours":27.94137073994737,"quality":"auspicious"},{"name":"Amṛta","start":"03:56","end":"05:33","startHours":27.94137073994737,"endHours":29.551980014159607,"quality":"auspicious"},{"name":"Kāla","start":"05:33","end":"07:10","startHours":29.551980014159607,"endHours":31.162589288371844,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.162589288371843,"endHours":8.162589288371844,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.162589288371844,"endHours":9.162589288371844,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.162589288371844,"endHours":10.162589288371844,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.162589288371844,"endHours":11.162589288371844,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.162589288371844,"endHours":12.162589288371844,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.162589288371844,"endHours":13.162589288371844,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.162589288371844,"endHours":14.162589288371844,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.162589288371844,"endHours":15.162589288371844,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.162589288371844,"endHours":16.162589288371844,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.162589288371844,"endHours":17.162589288371844,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.162589288371844,"endHours":18.162589288371844,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.162589288371844,"endHours":19.162589288371844,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.162589288371844,"endHours":20.162589288371844,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.162589288371844,"endHours":21.162589288371844,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.162589288371844,"endHours":22.162589288371844,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.162589288371844,"endHours":23.162589288371844,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.162589288371844,"endHours":24.162589288371844,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.162589288371844,"endHours":25.162589288371844,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.162589288371844,"endHours":26.162589288371844,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.162589288371844,"endHours":27.162589288371844,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.162589288371844,"endHours":28.162589288371844,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.162589288371844,"endHours":29.162589288371844,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.162589288371844,"endHours":30.162589288371844,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.162589288371844,"endHours":31.162589288371844,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.51402002668385,"eotMinutes":-8.635931491373626,"ayanamsa":23.5881}},"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 Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","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 Śukla Aṣṭamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"precedence":4}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"pune"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 13, 1981 CE · Pune, Maharashtra · Vidhyamitra","description":"January 13, 1981 CE for Pune, Maharashtra: Śukla Aṣṭamī, sūryodaya 07:10, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/pune/1981-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/pune/1981-01-13","sa":"https://sa.vidhyamitra.com/city/pune/1981-01-13","hi":"https://hi.vidhyamitra.com/city/pune/1981-01-13","x-default":"https://vidhyamitra.com/city/pune/1981-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T02:27:09.215Z","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":"2026-06-02T02:27:09.215Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T02:27:09.215Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}