{"id":"vidhyamitra:city-day:chennai:1997-06-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chennai/1997-06-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-06-01","date_display":"June 1, 1997 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":1997,"month":6,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450600.770833,"kali_year":5099,"ahargana":1862135.2708,"sun":{"sidereal_longitude":46.6632,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":353.2099,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.5467,"elapsed_within_tithi_degrees":6.5467},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":353.2099,"elapsed_within_degrees":6.5433},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.8731},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":1997,"month":6,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450600.770833,"ahargana":1862135.2708,"kali_year":5099,"ayanamsa_lahiri":23.8169,"grahas":{"sun":{"sidereal_longitude":46.78328699999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":352.403487,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-1.3966},"mars":{"sidereal_longitude":149.154587,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":23.500886999999977,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":298.02978699999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":62.41228699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":353.498787,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":155.1121,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":335.1121,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"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":1997,"month":6,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450600.770833,"kali_year":5099,"ahargana":1862135.2708,"sun":{"sidereal_longitude":46.6632,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":353.2099,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":306.5467,"elapsed_within_tithi_degrees":6.5467},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":353.2099,"elapsed_within_degrees":6.5433},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.8731},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.397,"elongation":53.453},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.397,"opposition_distance":126.547}},"eclipse_window_40days":[]},"city":{"slug":"chennai","name":"Chennai, Tamil Nadu","lat":13.0827,"lon":80.2707,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"mega","elevation_m":6},"tier2":{"city":{"slug":"chennai","name":"Chennai, Tamil Nadu","lat":13.0827,"lon":80.2707,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"mega","elevation_m":6},"sunriseLocal":"05:41","sunsetLocal":"18:32","solarNoonLocal":"12:07","dayLengthHours":12.843205923585368,"dayLengthDisplay":"12 Hours 50 Mins 36 Secs","nightLengthDisplay":"11 Hours 09 Mins 24 Secs","moonriseLocal":"02:21","moonsetLocal":"14:37","rahuKala":{"name":"Rāhu Kāla","start":"16:56","end":"18:32","startHours":16.92556775399621,"endHours":18.53096849444438,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:07","end":"13:43","startHours":12.109365532651697,"endHours":13.714766273099867,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:19","end":"16:56","startHours":15.320167013548039,"endHours":16.92556775399621,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:07","startHours":8.684510619695597,"endHours":9.11261748381511,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:13","end":"06:34","startHours":6.222896151008403,"endHours":6.565381642304012,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:32","startHours":11.681258668532186,"endHours":12.537472396771209,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:59","end":"04:50","startHours":3.9753351143809637,"endHours":4.831548842619988,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:37","end":"05:41","startHours":4.617495410560232,"endHours":5.687762570859013,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:06","startHours":14.249899853249259,"endHours":15.106113581488284,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:20","end":"18:44","startHours":18.33096849444438,"endHours":18.73096849444438,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:32","end":"19:04","startHours":18.53096849444438,"endHours":19.066102074593772,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:17","end":"20:02","startHours":18.28096849444438,"endHours":20.03096849444438,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:32","startHours":23.681258668532184,"endHours":24.53747239677121,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:41","end":"07:18","startHours":5.687762570859013,"endHours":7.293163311307183,"quality":"inauspicious"},{"name":"Chala","start":"07:18","end":"08:54","startHours":7.293163311307183,"endHours":8.898564051755354,"quality":"neutral"},{"name":"Labha","start":"08:54","end":"10:30","startHours":8.898564051755354,"endHours":10.503964792203526,"quality":"auspicious"},{"name":"Amṛta","start":"10:30","end":"12:07","startHours":10.503964792203526,"endHours":12.109365532651697,"quality":"auspicious"},{"name":"Kāla","start":"12:07","end":"13:43","startHours":12.109365532651697,"endHours":13.714766273099867,"quality":"inauspicious"},{"name":"Śubha","start":"13:43","end":"15:19","startHours":13.714766273099867,"endHours":15.320167013548039,"quality":"auspicious"},{"name":"Roga","start":"15:19","end":"16:56","startHours":15.320167013548039,"endHours":16.92556775399621,"quality":"inauspicious"},{"name":"Udveg","start":"16:56","end":"18:32","startHours":16.92556775399621,"endHours":18.53096849444438,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:32","end":"19:56","startHours":18.53096849444438,"endHours":19.92556775399621,"quality":"auspicious"},{"name":"Roga","start":"19:56","end":"21:19","startHours":19.92556775399621,"endHours":21.320167013548037,"quality":"inauspicious"},{"name":"Udveg","start":"21:19","end":"22:43","startHours":21.320167013548037,"endHours":22.71476627309987,"quality":"inauspicious"},{"name":"Chala","start":"22:43","end":"00:07","startHours":22.71476627309987,"endHours":24.109365532651697,"quality":"neutral"},{"name":"Labha","start":"00:07","end":"01:30","startHours":24.109365532651697,"endHours":25.503964792203526,"quality":"auspicious"},{"name":"Amṛta","start":"01:30","end":"02:54","startHours":25.503964792203526,"endHours":26.898564051755354,"quality":"auspicious"},{"name":"Kāla","start":"02:54","end":"04:18","startHours":26.898564051755354,"endHours":28.293163311307183,"quality":"inauspicious"},{"name":"Śubha","start":"04:18","end":"05:41","startHours":28.293163311307183,"endHours":29.687762570859014,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.687762570859013,"endHours":6.687762570859013,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.687762570859013,"endHours":7.687762570859013,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.687762570859013,"endHours":8.687762570859013,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.687762570859013,"endHours":9.687762570859013,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.687762570859013,"endHours":10.687762570859013,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.687762570859013,"endHours":11.687762570859013,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.687762570859013,"endHours":12.687762570859013,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.687762570859013,"endHours":13.687762570859013,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.687762570859013,"endHours":14.687762570859013,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.687762570859013,"endHours":15.687762570859013,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.687762570859013,"endHours":16.687762570859014,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.687762570859014,"endHours":17.687762570859014,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.687762570859014,"endHours":18.687762570859014,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.687762570859014,"endHours":19.687762570859014,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.687762570859014,"endHours":20.687762570859014,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.687762570859014,"endHours":21.687762570859014,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.687762570859014,"endHours":22.687762570859014,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.687762570859014,"endHours":23.687762570859014,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.687762570859014,"endHours":24.687762570859014,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.687762570859014,"endHours":25.687762570859014,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.687762570859014,"endHours":26.687762570859014,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.687762570859014,"endHours":27.687762570859014,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.687762570859014,"endHours":28.687762570859014,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.687762570859014,"endHours":29.687762570859014,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.033627342962983,"eotMinutes":2.3552680408980873,"ayanamsa":23.8169}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Ekādaśī · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"festivals":[{"id":"apara-ekadashi","name":"Aparā Ekādaśī","name_sanskrit":"अपरा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Boundless (aparā) merit; removes brahma-hatyā even.","vrata":true,"detection":{"tithi_number":26,"tithi_paksha":"Kṛṣṇa","lunar_month":"Jyeṣṭha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":"chennai"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga June 1, 1997 CE · Chennai, Tamil Nadu · Vidhyamitra","description":"June 1, 1997 CE for Chennai, Tamil Nadu: Kṛṣṇa Ekādaśī, sūryodaya 05:41, sūryāsta 18:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chennai/1997-06-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chennai/1997-06-01","sa":"https://sa.vidhyamitra.com/city/chennai/1997-06-01","hi":"https://hi.vidhyamitra.com/city/chennai/1997-06-01","x-default":"https://vidhyamitra.com/city/chennai/1997-06-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T12:47:14.998Z","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":"2026-06-02T12:47:14.998Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T12:47:14.998Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}