{"id":"vidhyamitra:city-day:ayodhya:1664-02-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1664-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1664-02-28","date_display":"February 28, 1664 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":1664,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328881.770833,"kali_year":4765,"ahargana":1740416.2708,"sun":{"sidereal_longitude":321.0273,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":332.519,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":11.4917,"elapsed_within_tithi_degrees":11.4917},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":332.519,"elapsed_within_degrees":12.519},"yoga":{"number":23,"name":"Śubha","sum_longitude":293.5462},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1664,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2328881.770833,"ahargana":1740416.2708,"kali_year":4765,"ayanamsa_lahiri":19.1616,"grahas":{"sun":{"sidereal_longitude":320.08844799999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":331.538448,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":-2.1212},"mars":{"sidereal_longitude":124.44924800000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":339.474548,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":266.97574800000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":279.182948,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":252.41024800000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":124.3705,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":304.3705,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1664,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328881.770833,"kali_year":4765,"ahargana":1740416.2708,"sun":{"sidereal_longitude":321.0273,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":332.519,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":11.4917,"elapsed_within_tithi_degrees":11.4917},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4,"moon_longitude":332.519,"elapsed_within_degrees":12.519},"yoga":{"number":23,"name":"Śubha","sum_longitude":293.5462},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.121,"elongation":11.492},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.121,"opposition_distance":168.508}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":-1.163,"elongation":0.61}]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:27","sunsetLocal":"18:02","solarNoonLocal":"12:14","dayLengthHours":11.576230848640314,"dayLengthDisplay":"11 Hours 34 Mins 34 Secs","nightLengthDisplay":"12 Hours 25 Mins 26 Secs","moonriseLocal":"07:05","moonsetLocal":"18:55","rahuKala":{"name":"Rāhu Kāla","start":"13:41","end":"15:08","startHours":13.687146503180497,"endHours":15.134175359260537,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:27","end":"07:54","startHours":6.452002222780301,"endHours":7.89903107886034,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:21","end":"10:48","startHours":9.34605993494038,"endHours":10.79308879102042,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:09","end":"09:32","startHours":9.153122754129708,"endHours":9.538997115751052,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:56","end":"07:15","startHours":6.934345174806981,"endHours":7.243044664104056,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:38","startHours":11.854243285479114,"endHours":12.625992008721802,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:41","startHours":4.908504776294926,"endHours":5.6802534995376135,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:27","startHours":5.487316318726942,"endHours":6.452002222780301,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:56","startHours":14.169489455207177,"endHours":14.941238178449865,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.828233071420616,"endHours":18.228233071420615,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:31","startHours":18.028233071420615,"endHours":18.510576023447296,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.778233071420615,"endHours":19.528233071420615,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:38","startHours":23.854243285479114,"endHours":24.625992008721802,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:27","end":"07:54","startHours":6.452002222780301,"endHours":7.89903107886034,"quality":"auspicious"},{"name":"Roga","start":"07:54","end":"09:21","startHours":7.89903107886034,"endHours":9.34605993494038,"quality":"inauspicious"},{"name":"Udveg","start":"09:21","end":"10:48","startHours":9.34605993494038,"endHours":10.79308879102042,"quality":"inauspicious"},{"name":"Chala","start":"10:48","end":"12:14","startHours":10.79308879102042,"endHours":12.240117647100458,"quality":"neutral"},{"name":"Labha","start":"12:14","end":"13:41","startHours":12.240117647100458,"endHours":13.687146503180497,"quality":"auspicious"},{"name":"Amṛta","start":"13:41","end":"15:08","startHours":13.687146503180497,"endHours":15.134175359260537,"quality":"auspicious"},{"name":"Kāla","start":"15:08","end":"16:35","startHours":15.134175359260537,"endHours":16.581204215340577,"quality":"inauspicious"},{"name":"Śubha","start":"16:35","end":"18:02","startHours":16.581204215340577,"endHours":18.028233071420615,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:02","end":"19:35","startHours":18.028233071420615,"endHours":19.581204215340577,"quality":"auspicious"},{"name":"Kāla","start":"19:35","end":"21:08","startHours":19.581204215340577,"endHours":21.13417535926054,"quality":"inauspicious"},{"name":"Śubha","start":"21:08","end":"22:41","startHours":21.13417535926054,"endHours":22.687146503180497,"quality":"auspicious"},{"name":"Roga","start":"22:41","end":"00:14","startHours":22.687146503180497,"endHours":24.24011764710046,"quality":"inauspicious"},{"name":"Udveg","start":"00:14","end":"01:48","startHours":24.24011764710046,"endHours":25.79308879102042,"quality":"inauspicious"},{"name":"Chala","start":"01:48","end":"03:21","startHours":25.79308879102042,"endHours":27.346059934940378,"quality":"neutral"},{"name":"Labha","start":"03:21","end":"04:54","startHours":27.346059934940378,"endHours":28.89903107886034,"quality":"auspicious"},{"name":"Amṛta","start":"04:54","end":"06:27","startHours":28.89903107886034,"endHours":30.4520022227803,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:27","end":"07:27","startHours":6.452002222780301,"endHours":7.452002222780301,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:27","end":"08:27","startHours":7.452002222780301,"endHours":8.452002222780301,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:27","end":"09:27","startHours":8.452002222780301,"endHours":9.452002222780301,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:27","end":"10:27","startHours":9.452002222780301,"endHours":10.452002222780301,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:27","end":"11:27","startHours":10.452002222780301,"endHours":11.452002222780301,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:27","end":"12:27","startHours":11.452002222780301,"endHours":12.452002222780301,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:27","end":"13:27","startHours":12.452002222780301,"endHours":13.452002222780301,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:27","end":"14:27","startHours":13.452002222780301,"endHours":14.452002222780301,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:27","end":"15:27","startHours":14.452002222780301,"endHours":15.452002222780301,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:27","end":"16:27","startHours":15.452002222780301,"endHours":16.4520022227803,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:27","end":"17:27","startHours":16.4520022227803,"endHours":17.4520022227803,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:27","end":"18:27","startHours":17.4520022227803,"endHours":18.4520022227803,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:27","end":"19:27","startHours":18.4520022227803,"endHours":19.4520022227803,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:27","end":"20:27","startHours":19.4520022227803,"endHours":20.4520022227803,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:27","end":"21:27","startHours":20.4520022227803,"endHours":21.4520022227803,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:27","end":"22:27","startHours":21.4520022227803,"endHours":22.4520022227803,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:27","end":"23:27","startHours":22.4520022227803,"endHours":23.4520022227803,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:27","end":"00:27","startHours":23.4520022227803,"endHours":24.4520022227803,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:27","end":"01:27","startHours":24.4520022227803,"endHours":25.4520022227803,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:27","end":"02:27","startHours":25.4520022227803,"endHours":26.4520022227803,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:27","end":"03:27","startHours":26.4520022227803,"endHours":27.4520022227803,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:27","end":"04:27","startHours":27.4520022227803,"endHours":28.4520022227803,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:27","end":"05:27","startHours":28.4520022227803,"endHours":29.4520022227803,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:27","end":"06:27","startHours":29.4520022227803,"endHours":30.4520022227803,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.10066571437908,"eotMinutes":-13.223058826027486,"ayanamsa":19.1616}},"calendars":{"vikram_samvat":1721,"vikram_samvatsara":"Piṅgala","saka_samvat":1586,"saka_samvatsara":"Krodhi","bengali_samvat":1071,"malayalam_era":840,"nanakshahi_year":195,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Pratipada · Vikram 1721 Piṅgala · Śaka 1586 Krodhi"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 28, 1664 CE · Ayodhyā · Vidhyamitra","description":"February 28, 1664 CE for Ayodhyā: Śukla Pratipada, sūryodaya 06:27, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1664-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1664-02-28","sa":"https://sa.vidhyamitra.com/city/ayodhya/1664-02-28","hi":"https://hi.vidhyamitra.com/city/ayodhya/1664-02-28","x-default":"https://vidhyamitra.com/city/ayodhya/1664-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T16:16:32.268Z","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":"2026-06-04T16:16:32.268Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T16:16:32.268Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}