{"id":"vidhyamitra:city-day:mathura:1981-02-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1981-02-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-27","date_display":"February 27, 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":2,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444662.770833,"kali_year":5082,"ahargana":1856197.2708,"sun":{"sidereal_longitude":314.9667,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":226.8662,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.8995,"elapsed_within_tithi_degrees":7.8995},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":226.8662,"elapsed_within_degrees":0.1996},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":181.8329},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":2,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444662.770833,"ahargana":1856197.2708,"kali_year":5082,"ayanamsa_lahiri":23.5898,"grahas":{"sun":{"sidereal_longitude":314.77466200000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":224.59516199999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":4.004},"mars":{"sidereal_longitude":322.54856199999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":297.138462,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":165.17676200000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":305.20526199999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":164.675562,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":109.7359,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":289.7359,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444662.770833,"kali_year":5082,"ahargana":1856197.2708,"sun":{"sidereal_longitude":314.9667,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":226.8662,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":271.8995,"elapsed_within_tithi_degrees":7.8995},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":226.8662,"elapsed_within_degrees":0.1996},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":181.8329},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.004,"elongation":88.1},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.004,"opposition_distance":91.9}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:47","sunsetLocal":"18:19","solarNoonLocal":"12:33","dayLengthHours":11.5369223494064,"dayLengthDisplay":"11 Hours 32 Mins 13 Secs","nightLengthDisplay":"12 Hours 27 Mins 47 Secs","moonriseLocal":"01:17","moonsetLocal":"11:47","rahuKala":{"name":"Rāhu Kāla","start":"11:06","end":"12:33","startHours":11.102855232246277,"endHours":12.544970525922075,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:26","end":"16:52","startHours":15.429201113273677,"endHours":16.871316406949475,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:13","end":"09:40","startHours":8.218624644894676,"endHours":9.660739938570476,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:51","startHours":9.468457899413703,"endHours":9.853021977727249,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:15","end":"07:34","startHours":7.257214449110809,"endHours":7.564865711761646,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:56","startHours":12.16040644760853,"endHours":12.929534604235624,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:14","end":"06:00","startHours":5.238253037964689,"endHours":6.007381194591783,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:47","startHours":5.81509915543501,"endHours":6.776509351218876,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:14","startHours":14.46779091748981,"endHours":15.236919074116903,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.113431700625277,"endHours":18.513431700625276,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:48","startHours":18.313431700625276,"endHours":18.79413679851721,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.063431700625276,"endHours":19.813431700625276,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:56","startHours":24.16040644760853,"endHours":24.92953460423562,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:47","end":"08:13","startHours":6.776509351218876,"endHours":8.218624644894676,"quality":"neutral"},{"name":"Labha","start":"08:13","end":"09:40","startHours":8.218624644894676,"endHours":9.660739938570476,"quality":"auspicious"},{"name":"Amṛta","start":"09:40","end":"11:06","startHours":9.660739938570476,"endHours":11.102855232246277,"quality":"auspicious"},{"name":"Kāla","start":"11:06","end":"12:33","startHours":11.102855232246277,"endHours":12.544970525922075,"quality":"inauspicious"},{"name":"Śubha","start":"12:33","end":"13:59","startHours":12.544970525922075,"endHours":13.987085819597876,"quality":"auspicious"},{"name":"Roga","start":"13:59","end":"15:26","startHours":13.987085819597876,"endHours":15.429201113273677,"quality":"inauspicious"},{"name":"Udveg","start":"15:26","end":"16:52","startHours":15.429201113273677,"endHours":16.871316406949475,"quality":"inauspicious"},{"name":"Chala","start":"16:52","end":"18:19","startHours":16.871316406949475,"endHours":18.313431700625276,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:19","end":"19:52","startHours":18.313431700625276,"endHours":19.871316406949475,"quality":"inauspicious"},{"name":"Udveg","start":"19:52","end":"21:26","startHours":19.871316406949475,"endHours":21.429201113273677,"quality":"inauspicious"},{"name":"Chala","start":"21:26","end":"22:59","startHours":21.429201113273677,"endHours":22.987085819597876,"quality":"neutral"},{"name":"Labha","start":"22:59","end":"00:33","startHours":22.987085819597876,"endHours":24.544970525922075,"quality":"auspicious"},{"name":"Amṛta","start":"00:33","end":"02:06","startHours":24.544970525922075,"endHours":26.102855232246277,"quality":"auspicious"},{"name":"Kāla","start":"02:06","end":"03:40","startHours":26.102855232246277,"endHours":27.660739938570476,"quality":"inauspicious"},{"name":"Śubha","start":"03:40","end":"05:13","startHours":27.660739938570476,"endHours":29.218624644894675,"quality":"auspicious"},{"name":"Roga","start":"05:13","end":"06:47","startHours":29.218624644894675,"endHours":30.776509351218877,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:47","end":"07:47","startHours":6.776509351218876,"endHours":7.776509351218876,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:47","end":"08:47","startHours":7.776509351218876,"endHours":8.776509351218877,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:47","end":"09:47","startHours":8.776509351218877,"endHours":9.776509351218877,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:47","end":"10:47","startHours":9.776509351218877,"endHours":10.776509351218877,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:47","end":"11:47","startHours":10.776509351218877,"endHours":11.776509351218877,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:47","end":"12:47","startHours":11.776509351218877,"endHours":12.776509351218877,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:47","end":"13:47","startHours":12.776509351218877,"endHours":13.776509351218877,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:47","end":"14:47","startHours":13.776509351218877,"endHours":14.776509351218877,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:47","end":"15:47","startHours":14.776509351218877,"endHours":15.776509351218877,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:47","end":"16:47","startHours":15.776509351218877,"endHours":16.776509351218877,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:47","end":"17:47","startHours":16.776509351218877,"endHours":17.776509351218877,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:47","end":"18:47","startHours":17.776509351218877,"endHours":18.776509351218877,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:47","end":"19:47","startHours":18.776509351218877,"endHours":19.776509351218877,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:47","end":"20:47","startHours":19.776509351218877,"endHours":20.776509351218877,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:47","end":"21:47","startHours":20.776509351218877,"endHours":21.776509351218877,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:47","end":"22:47","startHours":21.776509351218877,"endHours":22.776509351218877,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:47","end":"23:47","startHours":22.776509351218877,"endHours":23.776509351218877,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:47","end":"00:47","startHours":23.776509351218877,"endHours":24.776509351218877,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:47","end":"01:47","startHours":24.776509351218877,"endHours":25.776509351218877,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:47","end":"02:47","startHours":25.776509351218877,"endHours":26.776509351218877,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:47","end":"03:47","startHours":26.776509351218877,"endHours":27.776509351218877,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:47","end":"04:47","startHours":27.776509351218877,"endHours":28.776509351218877,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:47","end":"05:47","startHours":28.776509351218877,"endHours":29.776509351218877,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:47","end":"06:47","startHours":29.776509351218877,"endHours":30.776509351218877,"planetary_lord":"Mars"}],"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":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-8.432515984975945,"eotMinutes":-13.393031555324574,"ayanamsa":23.5898}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Aṣṭamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5}],"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 Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 27, 1981 CE · Mathurā · Vidhyamitra","description":"February 27, 1981 CE for Mathurā: Kṛṣṇa Aṣṭamī, sūryodaya 06:47, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1981-02-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1981-02-27","sa":"https://sa.vidhyamitra.com/city/mathura/1981-02-27","hi":"https://hi.vidhyamitra.com/city/mathura/1981-02-27","x-default":"https://vidhyamitra.com/city/mathura/1981-02-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T17:36:29.598Z","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":"2026-05-14T17:36:29.598Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T17:36:29.598Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}