{"id":"vidhyamitra:city-day:ayodhya:2180-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2180-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2180-02-13","date_display":"February 13, 2180 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":2180,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517331.770833,"kali_year":5281,"ahargana":1928866.2708,"sun":{"sidereal_longitude":297.2481,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":136.2672,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.0191,"elapsed_within_tithi_degrees":7.0191},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":136.2672,"elapsed_within_degrees":2.9339},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":73.5153},"karana":{"half_tithi_index":33,"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":2180,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517331.770833,"ahargana":1928866.2708,"kali_year":5281,"ayanamsa_lahiri":26.3691,"grahas":{"sun":{"sidereal_longitude":297.59517200000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":138.695872,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":-4.4675},"mars":{"sidereal_longitude":257.23787200000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":269.20257200000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":72.21847200000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":341.832472,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":61.410072000000014,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":219.3826,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":39.3826,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2180,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517331.770833,"kali_year":5281,"ahargana":1928866.2708,"sun":{"sidereal_longitude":297.2481,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":136.2672,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.0191,"elapsed_within_tithi_degrees":7.0191},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":136.2672,"elapsed_within_degrees":2.9339},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":73.5153},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.467,"elongation":160.981},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.467,"opposition_distance":19.019}},"eclipse_window_40days":[]},"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":"06:40","sunsetLocal":"17:52","solarNoonLocal":"12:16","dayLengthHours":11.197840542647299,"dayLengthDisplay":"11 Hours 11 Mins 52 Secs","nightLengthDisplay":"12 Hours 48 Mins 08 Secs","moonriseLocal":"19:26","moonsetLocal":"07:55","rahuKala":{"name":"Rāhu Kāla","start":"16:28","end":"17:52","startHours":16.46224895783644,"endHours":17.861979025667353,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:16","end":"13:40","startHours":12.263058754343703,"endHours":13.662788822174615,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:04","end":"16:28","startHours":15.062518890005528,"endHours":16.46224895783644,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:39","startHours":9.27696794297109,"endHours":9.650229294392666,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:26","startHours":7.130715172297024,"endHours":7.429324253434285,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.889797402922126,"endHours":12.63632010576528,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:10","end":"05:55","startHours":5.171093077333747,"endHours":5.9176157801769005,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:40","startHours":5.730985104466112,"endHours":6.664138483020054,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:53","startHours":14.129365511451585,"endHours":14.875888214294738,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:40","end":"18:04","startHours":17.661979025667353,"endHours":18.061979025667352,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:52","end":"18:20","startHours":17.861979025667353,"endHours":18.328555714944322,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:37","end":"19:22","startHours":17.611979025667353,"endHours":19.361979025667353,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.889797402922127,"endHours":24.63632010576528,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:40","end":"08:04","startHours":6.664138483020054,"endHours":8.063868550850966,"quality":"inauspicious"},{"name":"Chala","start":"08:04","end":"09:28","startHours":8.063868550850966,"endHours":9.463598618681878,"quality":"neutral"},{"name":"Labha","start":"09:28","end":"10:52","startHours":9.463598618681878,"endHours":10.86332868651279,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:16","startHours":10.86332868651279,"endHours":12.263058754343703,"quality":"auspicious"},{"name":"Kāla","start":"12:16","end":"13:40","startHours":12.263058754343703,"endHours":13.662788822174615,"quality":"inauspicious"},{"name":"Śubha","start":"13:40","end":"15:04","startHours":13.662788822174615,"endHours":15.062518890005528,"quality":"auspicious"},{"name":"Roga","start":"15:04","end":"16:28","startHours":15.062518890005528,"endHours":16.46224895783644,"quality":"inauspicious"},{"name":"Udveg","start":"16:28","end":"17:52","startHours":16.46224895783644,"endHours":17.861979025667353,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:52","end":"19:28","startHours":17.861979025667353,"endHours":19.46224895783644,"quality":"auspicious"},{"name":"Roga","start":"19:28","end":"21:04","startHours":19.46224895783644,"endHours":21.062518890005528,"quality":"inauspicious"},{"name":"Udveg","start":"21:04","end":"22:40","startHours":21.062518890005528,"endHours":22.662788822174615,"quality":"inauspicious"},{"name":"Chala","start":"22:40","end":"00:16","startHours":22.662788822174615,"endHours":24.263058754343703,"quality":"neutral"},{"name":"Labha","start":"00:16","end":"01:52","startHours":24.263058754343703,"endHours":25.86332868651279,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:28","startHours":25.86332868651279,"endHours":27.46359861868188,"quality":"auspicious"},{"name":"Kāla","start":"03:28","end":"05:04","startHours":27.46359861868188,"endHours":29.063868550850966,"quality":"inauspicious"},{"name":"Śubha","start":"05:04","end":"06:40","startHours":29.063868550850966,"endHours":30.664138483020054,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.664138483020054,"endHours":7.664138483020054,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.664138483020054,"endHours":8.664138483020054,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.664138483020054,"endHours":9.664138483020054,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.664138483020054,"endHours":10.664138483020054,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.664138483020054,"endHours":11.664138483020054,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.664138483020054,"endHours":12.664138483020054,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.664138483020054,"endHours":13.664138483020054,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.664138483020054,"endHours":14.664138483020054,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.664138483020054,"endHours":15.664138483020054,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.664138483020054,"endHours":16.664138483020054,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.664138483020054,"endHours":17.664138483020054,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.664138483020054,"endHours":18.664138483020054,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.664138483020054,"endHours":19.664138483020054,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.664138483020054,"endHours":20.664138483020054,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.664138483020054,"endHours":21.664138483020054,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.664138483020054,"endHours":22.664138483020054,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.664138483020054,"endHours":23.664138483020054,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.664138483020054,"endHours":24.664138483020054,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.664138483020054,"endHours":25.664138483020054,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.664138483020054,"endHours":26.664138483020054,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.664138483020054,"endHours":27.664138483020054,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.664138483020054,"endHours":28.664138483020054,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.664138483020054,"endHours":29.664138483020054,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.664138483020054,"endHours":30.664138483020054,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.531615547085211,"eotMinutes":-14.599525260622107,"ayanamsa":26.3691}},"calendars":{"vikram_samvat":2237,"vikram_samvatsara":"Vijaya","saka_samvat":2102,"saka_samvatsara":"Vikrama","bengali_samvat":1587,"malayalam_era":1356,"nanakshahi_year":711,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Dvitīyā · Vikram 2237 Vijaya · Śaka 2102 Vikrama"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":"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 13, 2180 CE · Ayodhyā · Vidhyamitra","description":"February 13, 2180 CE for Ayodhyā: Kṛṣṇa Dvitīyā, sūryodaya 06:40, sūryāsta 17:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2180-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2180-02-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/2180-02-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/2180-02-13","x-default":"https://vidhyamitra.com/city/ayodhya/2180-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T06:53:50.998Z","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":"2026-05-21T06:53:50.998Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T06:53:50.998Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}