{"id":"vidhyamitra:city-day:noida:1981-11-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/noida/1981-11-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-11-13","date_display":"November 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":11,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444921.770833,"kali_year":5083,"ahargana":1856456.2708,"sun":{"sidereal_longitude":206.3972,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":40.4409,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.0437,"elapsed_within_tithi_degrees":2.0437},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":40.4409,"elapsed_within_degrees":0.4409},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.8382},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":11,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444921.770833,"ahargana":1856456.2708,"kali_year":5083,"ayanamsa_lahiri":23.5997,"grahas":{"sun":{"sidereal_longitude":206.97636599999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":42.709565999999995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false,"latitude":-3.7105},"mars":{"sidereal_longitude":139.69316600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":191.72836600000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":183.93696599999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":254.34896600000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":173.412866,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":96.0129,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":276.0129,"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":11,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444921.770833,"kali_year":5083,"ahargana":1856456.2708,"sun":{"sidereal_longitude":206.3972,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":40.4409,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.0437,"elapsed_within_tithi_degrees":2.0437},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":40.4409,"elapsed_within_degrees":0.4409},"yoga":{"number":19,"name":"Parigha","sum_longitude":246.8382},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.711,"elongation":165.956},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.711,"opposition_distance":14.044}},"eclipse_window_40days":[]},"city":{"slug":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"06:42","sunsetLocal":"17:29","solarNoonLocal":"12:05","dayLengthHours":10.786625187809335,"dayLengthDisplay":"10 Hours 47 Mins 12 Secs","nightLengthDisplay":"13 Hours 12 Mins 48 Secs","moonriseLocal":"18:16","moonsetLocal":"08:00","rahuKala":{"name":"Rāhu Kāla","start":"10:44","end":"12:05","startHours":10.737941837949535,"endHours":12.086269986425702,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:47","end":"16:08","startHours":14.782926283378035,"endHours":16.131254431854202,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:02","end":"09:23","startHours":8.041285540997201,"endHours":9.389613689473368,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:34","startHours":9.20983660300988,"endHours":9.569390775936856,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:26","startHours":7.142400108679756,"endHours":7.430043447021339,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:27","startHours":11.726715813498723,"endHours":12.44582415935268,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:15","end":"05:58","startHours":5.254740700813123,"endHours":5.973849046667079,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:48","end":"06:42","startHours":5.794071960203589,"endHours":6.692957392521034,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:36","startHours":13.88404085106059,"endHours":14.603149196914545,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.27958258033037,"endHours":17.67958258033037,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:56","startHours":17.47958258033037,"endHours":17.92902529648909,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.22958258033037,"endHours":18.97958258033037,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:27","startHours":23.726715813498725,"endHours":24.44582415935268,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:42","end":"08:02","startHours":6.692957392521034,"endHours":8.041285540997201,"quality":"neutral"},{"name":"Labha","start":"08:02","end":"09:23","startHours":8.041285540997201,"endHours":9.389613689473368,"quality":"auspicious"},{"name":"Amṛta","start":"09:23","end":"10:44","startHours":9.389613689473368,"endHours":10.737941837949535,"quality":"auspicious"},{"name":"Kāla","start":"10:44","end":"12:05","startHours":10.737941837949535,"endHours":12.086269986425702,"quality":"inauspicious"},{"name":"Śubha","start":"12:05","end":"13:26","startHours":12.086269986425702,"endHours":13.434598134901869,"quality":"auspicious"},{"name":"Roga","start":"13:26","end":"14:47","startHours":13.434598134901869,"endHours":14.782926283378035,"quality":"inauspicious"},{"name":"Udveg","start":"14:47","end":"16:08","startHours":14.782926283378035,"endHours":16.131254431854202,"quality":"inauspicious"},{"name":"Chala","start":"16:08","end":"17:29","startHours":16.131254431854202,"endHours":17.47958258033037,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:29","end":"19:08","startHours":17.47958258033037,"endHours":19.131254431854202,"quality":"inauspicious"},{"name":"Udveg","start":"19:08","end":"20:47","startHours":19.131254431854202,"endHours":20.782926283378035,"quality":"inauspicious"},{"name":"Chala","start":"20:47","end":"22:26","startHours":20.782926283378035,"endHours":22.43459813490187,"quality":"neutral"},{"name":"Labha","start":"22:26","end":"00:05","startHours":22.43459813490187,"endHours":24.0862699864257,"quality":"auspicious"},{"name":"Amṛta","start":"00:05","end":"01:44","startHours":24.0862699864257,"endHours":25.737941837949535,"quality":"auspicious"},{"name":"Kāla","start":"01:44","end":"03:23","startHours":25.737941837949535,"endHours":27.389613689473368,"quality":"inauspicious"},{"name":"Śubha","start":"03:23","end":"05:02","startHours":27.389613689473368,"endHours":29.0412855409972,"quality":"auspicious"},{"name":"Roga","start":"05:02","end":"06:42","startHours":29.0412855409972,"endHours":30.692957392521034,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:42","end":"07:42","startHours":6.692957392521034,"endHours":7.692957392521034,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:42","end":"08:42","startHours":7.692957392521034,"endHours":8.692957392521034,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:42","end":"09:42","startHours":8.692957392521034,"endHours":9.692957392521034,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:42","end":"10:42","startHours":9.692957392521034,"endHours":10.692957392521034,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:42","end":"11:42","startHours":10.692957392521034,"endHours":11.692957392521034,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:42","end":"12:42","startHours":11.692957392521034,"endHours":12.692957392521034,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:42","end":"13:42","startHours":12.692957392521034,"endHours":13.692957392521034,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:42","end":"14:42","startHours":13.692957392521034,"endHours":14.692957392521034,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:42","end":"15:42","startHours":14.692957392521034,"endHours":15.692957392521034,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:42","end":"16:42","startHours":15.692957392521034,"endHours":16.692957392521034,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:42","end":"17:42","startHours":16.692957392521034,"endHours":17.692957392521034,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:42","end":"18:42","startHours":17.692957392521034,"endHours":18.692957392521034,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:42","end":"19:42","startHours":18.692957392521034,"endHours":19.692957392521034,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:42","end":"20:42","startHours":19.692957392521034,"endHours":20.692957392521034,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:42","end":"21:42","startHours":20.692957392521034,"endHours":21.692957392521034,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:42","end":"22:42","startHours":21.692957392521034,"endHours":22.692957392521034,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:42","end":"23:42","startHours":22.692957392521034,"endHours":23.692957392521034,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:42","end":"00:42","startHours":23.692957392521034,"endHours":24.692957392521034,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:42","end":"01:42","startHours":24.692957392521034,"endHours":25.692957392521034,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:42","end":"02:42","startHours":25.692957392521034,"endHours":26.692957392521034,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:42","end":"03:42","startHours":26.692957392521034,"endHours":27.692957392521034,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:42","end":"04:42","startHours":27.692957392521034,"endHours":28.692957392521034,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:42","end":"05:42","startHours":28.692957392521034,"endHours":29.692957392521034,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:42","end":"06:42","startHours":29.692957392521034,"endHours":30.692957392521034,"planetary_lord":"Mars"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.892722228134833,"eotMinutes":15.25980081445791,"ayanamsa":23.5997}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Dvitīyā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"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":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"noida"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga November 13, 1981 CE · Noida, Uttar Pradesh · Vidhyamitra","description":"November 13, 1981 CE for Noida, Uttar Pradesh: Kṛṣṇa Dvitīyā, sūryodaya 06:42, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/noida/1981-11-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/noida/1981-11-13","sa":"https://sa.vidhyamitra.com/city/noida/1981-11-13","hi":"https://hi.vidhyamitra.com/city/noida/1981-11-13","x-default":"https://vidhyamitra.com/city/noida/1981-11-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:31:15.637Z","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":"2026-05-31T01:31:15.637Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:31:15.637Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}