{"id":"vidhyamitra:city-day:erode:2101-02-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2101-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2101-02-21","date_display":"February 21, 2101 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":2101,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488485.770833,"kali_year":5202,"ahargana":1900020.2708,"sun":{"sidereal_longitude":306.8338,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":216.053,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.2192,"elapsed_within_tithi_degrees":5.2192},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":216.053,"elapsed_within_degrees":2.7197},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.8868},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2101,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488485.770833,"ahargana":1900020.2708,"kali_year":5202,"ayanamsa_lahiri":25.2658,"grahas":{"sun":{"sidereal_longitude":306.9494010000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":216.53770099999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":-4.4979},"mars":{"sidereal_longitude":264.41740100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":279.8217010000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":206.70140100000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":303.2274010000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":192.15230099999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":307.7825,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":127.7825,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2101,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488485.770833,"kali_year":5202,"ahargana":1900020.2708,"sun":{"sidereal_longitude":306.8338,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":216.053,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.2192,"elapsed_within_tithi_degrees":5.2192},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":216.053,"elapsed_within_degrees":2.7197},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.8868},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.498,"elongation":90.781},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.498,"opposition_distance":89.219}},"eclipse_window_40days":[{"offset_days":-7,"type":"lunar","occurs":true,"moon_latitude":0.807,"opposition_distance":1.924},{"offset_days":7,"type":"solar","occurs":true,"moon_latitude":0.593,"elongation":1.085}]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:39","sunsetLocal":"18:28","solarNoonLocal":"12:33","dayLengthHours":11.826171133946367,"dayLengthDisplay":"11 Hours 49 Mins 34 Secs","nightLengthDisplay":"12 Hours 10 Mins 26 Secs","moonriseLocal":"00:46","moonsetLocal":"12:17","rahuKala":{"name":"Rāhu Kāla","start":"08:07","end":"09:36","startHours":8.120536530457382,"endHours":9.598807922200677,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:05","end":"12:33","startHours":11.077079313943974,"endHours":12.555350705687271,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:02","end":"15:31","startHours":14.033622097430566,"endHours":15.511893489173861,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:48","startHours":9.401705069968239,"endHours":9.795910774433118,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:27","startHours":7.1350222692951855,"endHours":7.450386832867089,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:57","startHours":12.161145001222392,"endHours":12.94955641015215,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:04","end":"05:51","startHours":5.0654423208545705,"endHours":5.853853729784329,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:39","end":"06:39","startHours":5.6567508775518895,"endHours":6.6422651387140865,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:19","startHours":14.526379228011663,"endHours":15.31479063694142,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:16","end":"18:40","startHours":18.268436272660455,"endHours":18.668436272660454,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:28","end":"18:58","startHours":18.468436272660455,"endHours":18.961193403241552,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:13","end":"19:58","startHours":18.218436272660455,"endHours":19.968436272660455,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:57","startHours":24.16114500122239,"endHours":24.94955641015215,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:39","end":"08:07","startHours":6.6422651387140865,"endHours":8.120536530457382,"quality":"auspicious"},{"name":"Kāla","start":"08:07","end":"09:36","startHours":8.120536530457382,"endHours":9.598807922200677,"quality":"inauspicious"},{"name":"Śubha","start":"09:36","end":"11:05","startHours":9.598807922200677,"endHours":11.077079313943974,"quality":"auspicious"},{"name":"Roga","start":"11:05","end":"12:33","startHours":11.077079313943974,"endHours":12.555350705687271,"quality":"inauspicious"},{"name":"Udveg","start":"12:33","end":"14:02","startHours":12.555350705687271,"endHours":14.033622097430566,"quality":"inauspicious"},{"name":"Chala","start":"14:02","end":"15:31","startHours":14.033622097430566,"endHours":15.511893489173861,"quality":"neutral"},{"name":"Labha","start":"15:31","end":"16:59","startHours":15.511893489173861,"endHours":16.99016488091716,"quality":"auspicious"},{"name":"Amṛta","start":"16:59","end":"18:28","startHours":16.99016488091716,"endHours":18.468436272660455,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:28","end":"19:59","startHours":18.468436272660455,"endHours":19.99016488091716,"quality":"neutral"},{"name":"Labha","start":"19:59","end":"21:31","startHours":19.99016488091716,"endHours":21.511893489173865,"quality":"auspicious"},{"name":"Amṛta","start":"21:31","end":"23:02","startHours":21.511893489173865,"endHours":23.033622097430566,"quality":"auspicious"},{"name":"Kāla","start":"23:02","end":"00:33","startHours":23.033622097430566,"endHours":24.55535070568727,"quality":"inauspicious"},{"name":"Śubha","start":"00:33","end":"02:05","startHours":24.55535070568727,"endHours":26.077079313943976,"quality":"auspicious"},{"name":"Roga","start":"02:05","end":"03:36","startHours":26.077079313943976,"endHours":27.598807922200677,"quality":"inauspicious"},{"name":"Udveg","start":"03:36","end":"05:07","startHours":27.598807922200677,"endHours":29.120536530457382,"quality":"inauspicious"},{"name":"Chala","start":"05:07","end":"06:39","startHours":29.120536530457382,"endHours":30.642265138714087,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:39","end":"07:39","startHours":6.6422651387140865,"endHours":7.6422651387140865,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:39","end":"08:39","startHours":7.6422651387140865,"endHours":8.642265138714087,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:39","end":"09:39","startHours":8.642265138714087,"endHours":9.642265138714087,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:39","end":"10:39","startHours":9.642265138714087,"endHours":10.642265138714087,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:39","end":"11:39","startHours":10.642265138714087,"endHours":11.642265138714087,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:39","end":"12:39","startHours":11.642265138714087,"endHours":12.642265138714087,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:39","end":"13:39","startHours":12.642265138714087,"endHours":13.642265138714087,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:39","end":"14:39","startHours":13.642265138714087,"endHours":14.642265138714087,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:39","end":"15:39","startHours":14.642265138714087,"endHours":15.642265138714087,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:39","end":"16:39","startHours":15.642265138714087,"endHours":16.642265138714087,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:39","end":"17:39","startHours":16.642265138714087,"endHours":17.642265138714087,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:39","end":"18:39","startHours":17.642265138714087,"endHours":18.642265138714087,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:39","end":"19:39","startHours":18.642265138714087,"endHours":19.642265138714087,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:39","end":"20:39","startHours":19.642265138714087,"endHours":20.642265138714087,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:39","end":"21:39","startHours":20.642265138714087,"endHours":21.642265138714087,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:39","end":"22:39","startHours":21.642265138714087,"endHours":22.642265138714087,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:39","end":"23:39","startHours":22.642265138714087,"endHours":23.642265138714087,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:39","end":"00:39","startHours":23.642265138714087,"endHours":24.642265138714087,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:39","end":"01:39","startHours":24.642265138714087,"endHours":25.642265138714087,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:39","end":"02:39","startHours":25.642265138714087,"endHours":26.642265138714087,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:39","end":"03:39","startHours":26.642265138714087,"endHours":27.642265138714087,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:39","end":"04:39","startHours":27.642265138714087,"endHours":28.642265138714087,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:39","end":"05:39","startHours":28.642265138714087,"endHours":29.642265138714087,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:39","end":"06:39","startHours":29.642265138714087,"endHours":30.642265138714087,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","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":-10.684673247226396,"eotMinutes":-14.189842341236304,"ayanamsa":25.2658}},"calendars":{"vikram_samvat":2158,"vikram_samvatsara":"Bhāva","saka_samvat":2023,"saka_samvatsara":"Durmati","bengali_samvat":1508,"malayalam_era":1277,"nanakshahi_year":632,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","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 Kṛṣṇa Aṣṭamī · Vikram 2158 Bhāva · Śaka 2023 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}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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}]},"validity":{"eternal":false,"location_specific":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 21, 2101 CE · Erode, Tamil Nadu · Vidhyamitra","description":"February 21, 2101 CE for Erode, Tamil Nadu: Kṛṣṇa Aṣṭamī, sūryodaya 06:39, sūryāsta 18:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2101-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2101-02-21","sa":"https://sa.vidhyamitra.com/city/erode/2101-02-21","hi":"https://hi.vidhyamitra.com/city/erode/2101-02-21","x-default":"https://vidhyamitra.com/city/erode/2101-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:56:50.467Z","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":"2026-06-01T04:56:50.467Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:56:50.467Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}