{"id":"vidhyamitra:city-day:indore:1981-02-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/indore/1981-02-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-11","date_display":"February 11, 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":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444646.770833,"kali_year":5082,"ahargana":1856181.2708,"sun":{"sidereal_longitude":298.7666,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":18.0954,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.3288,"elapsed_within_tithi_degrees":7.3288},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.0954,"elapsed_within_degrees":4.762},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.8619},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444646.770833,"ahargana":1856181.2708,"kali_year":5082,"ayanamsa_lahiri":23.5892,"grahas":{"sun":{"sidereal_longitude":298.64307299999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":19.364472999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":-4.4957},"mars":{"sidereal_longitude":309.941373,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":311.081373,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":166.387873,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":285.1930729999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.494373,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.5837,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.5837,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":2,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444646.770833,"kali_year":5082,"ahargana":1856181.2708,"sun":{"sidereal_longitude":298.7666,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":18.0954,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.3288,"elapsed_within_tithi_degrees":7.3288},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.0954,"elapsed_within_degrees":4.762},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.8619},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.496,"elongation":79.329},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.496,"opposition_distance":100.671}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"indore","name":"Indore, Madhya Pradesh","lat":22.7196,"lon":75.8577,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"indore","name":"Indore, Madhya Pradesh","lat":22.7196,"lon":75.8577,"tz_offset_hours":5.5,"state":"Madhya Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"07:02","sunsetLocal":"18:21","solarNoonLocal":"12:41","dayLengthHours":11.31985156406953,"dayLengthDisplay":"11 Hours 19 Mins 11 Secs","nightLengthDisplay":"12 Hours 40 Mins 49 Secs","moonriseLocal":"11:34","moonsetLocal":"00:34","rahuKala":{"name":"Rāhu Kāla","start":"12:41","end":"14:06","startHours":12.685772359176312,"endHours":14.100753804685004,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:26","end":"09:51","startHours":8.440828022650239,"endHours":9.855809468158931,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:16","end":"12:41","startHours":11.270790913667621,"endHours":12.685772359176312,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:03","startHours":9.667145275424438,"endHours":10.044473660893422,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:48","startHours":7.497507058977778,"endHours":7.799369767352966,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:19","end":"13:04","startHours":12.308443973707327,"endHours":13.063100744645297,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:16","startHours":5.51653303526561,"endHours":6.271189806203579,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:02","startHours":6.082525613469087,"endHours":7.0258465771415475,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:20","startHours":14.572414286521234,"endHours":15.327071057459202,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.145698141211078,"endHours":18.545698141211076,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:49","startHours":18.345698141211077,"endHours":18.81735862304731,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.095698141211077,"endHours":19.845698141211077,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:19","end":"01:04","startHours":24.308443973707327,"endHours":25.063100744645297,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:02","end":"08:26","startHours":7.0258465771415475,"endHours":8.440828022650239,"quality":"auspicious"},{"name":"Amṛta","start":"08:26","end":"09:51","startHours":8.440828022650239,"endHours":9.855809468158931,"quality":"auspicious"},{"name":"Kāla","start":"09:51","end":"11:16","startHours":9.855809468158931,"endHours":11.270790913667621,"quality":"inauspicious"},{"name":"Śubha","start":"11:16","end":"12:41","startHours":11.270790913667621,"endHours":12.685772359176312,"quality":"auspicious"},{"name":"Roga","start":"12:41","end":"14:06","startHours":12.685772359176312,"endHours":14.100753804685004,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:31","startHours":14.100753804685004,"endHours":15.515735250193696,"quality":"inauspicious"},{"name":"Chala","start":"15:31","end":"16:56","startHours":15.515735250193696,"endHours":16.930716695702387,"quality":"neutral"},{"name":"Labha","start":"16:56","end":"18:21","startHours":16.930716695702387,"endHours":18.345698141211077,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:21","end":"19:56","startHours":18.345698141211077,"endHours":19.930716695702387,"quality":"inauspicious"},{"name":"Chala","start":"19:56","end":"21:31","startHours":19.930716695702387,"endHours":21.515735250193693,"quality":"neutral"},{"name":"Labha","start":"21:31","end":"23:06","startHours":21.515735250193693,"endHours":23.100753804685002,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:41","startHours":23.100753804685002,"endHours":24.685772359176312,"quality":"auspicious"},{"name":"Kāla","start":"00:41","end":"02:16","startHours":24.685772359176312,"endHours":26.27079091366762,"quality":"inauspicious"},{"name":"Śubha","start":"02:16","end":"03:51","startHours":26.27079091366762,"endHours":27.85580946815893,"quality":"auspicious"},{"name":"Roga","start":"03:51","end":"05:26","startHours":27.85580946815893,"endHours":29.440828022650237,"quality":"inauspicious"},{"name":"Udveg","start":"05:26","end":"07:02","startHours":29.440828022650237,"endHours":31.025846577141547,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.0258465771415475,"endHours":8.025846577141547,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.025846577141547,"endHours":9.025846577141547,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.025846577141547,"endHours":10.025846577141547,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.025846577141547,"endHours":11.025846577141547,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.025846577141547,"endHours":12.025846577141547,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.025846577141547,"endHours":13.025846577141547,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.025846577141547,"endHours":14.025846577141547,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.025846577141547,"endHours":15.025846577141547,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.025846577141547,"endHours":16.025846577141547,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.025846577141547,"endHours":17.025846577141547,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.025846577141547,"endHours":18.025846577141547,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.025846577141547,"endHours":19.025846577141547,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.025846577141547,"endHours":20.025846577141547,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.025846577141547,"endHours":21.025846577141547,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.025846577141547,"endHours":22.025846577141547,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.025846577141547,"endHours":23.025846577141547,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.025846577141547,"endHours":24.025846577141547,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.025846577141547,"endHours":25.025846577141547,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.025846577141547,"endHours":26.025846577141547,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.025846577141547,"endHours":27.025846577141547,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.025846577141547,"endHours":28.025846577141547,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.025846577141547,"endHours":29.025846577141547,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.025846577141547,"endHours":30.025846577141547,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.025846577141547,"endHours":31.025846577141547,"planetary_lord":"Sun"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.098875286053813,"eotMinutes":-14.577141550578775,"ayanamsa":23.5892}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Saptamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"indore"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 11, 1981 CE · Indore, Madhya Pradesh · Vidhyamitra","description":"February 11, 1981 CE for Indore, Madhya Pradesh: Śukla Saptamī, sūryodaya 07:02, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/indore/1981-02-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/indore/1981-02-11","sa":"https://sa.vidhyamitra.com/city/indore/1981-02-11","hi":"https://hi.vidhyamitra.com/city/indore/1981-02-11","x-default":"https://vidhyamitra.com/city/indore/1981-02-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T04:01:14.646Z","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":"2026-05-31T04:01:14.646Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T04:01:14.646Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}