{"id":"vidhyamitra:city-day:amarnath:1981-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/amarnath/1981-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-10","date_display":"February 10, 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":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444645.770833,"kali_year":5082,"ahargana":1856180.2708,"sun":{"sidereal_longitude":297.7493,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":3.6222,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.8728,"elapsed_within_tithi_degrees":5.8728},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.6222,"elapsed_within_degrees":3.6222},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.3715},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444645.770833,"ahargana":1856180.2708,"kali_year":5082,"ayanamsa_lahiri":23.5891,"grahas":{"sun":{"sidereal_longitude":297.631312,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":5.1011120000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-4.3027},"mars":{"sidereal_longitude":309.151612,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":311.443212,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":166.43991200000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":283.9413119999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.53331200000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.6367,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.6367,"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":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444645.770833,"kali_year":5082,"ahargana":1856180.2708,"sun":{"sidereal_longitude":297.7493,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":3.6222,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":65.8728,"elapsed_within_tithi_degrees":5.8728},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":3.6222,"elapsed_within_degrees":3.6222},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.3715},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.303,"elongation":65.873},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.303,"opposition_distance":114.127}},"eclipse_window_40days":[{"offset_days":-5,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"amarnath","name":"Amarnāth","lat":34.2167,"lon":75.5,"tz_offset_hours":5.5,"state":"J&K","country":"IN","tier":"tirtha","elevation_m":3888},"tier2":{"city":{"slug":"amarnath","name":"Amarnāth","lat":34.2167,"lon":75.5,"tz_offset_hours":5.5,"state":"J&K","country":"IN","tier":"tirtha","elevation_m":3888},"sunriseLocal":"07:19","sunsetLocal":"18:06","solarNoonLocal":"12:43","dayLengthHours":10.797465497736198,"dayLengthDisplay":"10 Hours 47 Mins 51 Secs","nightLengthDisplay":"13 Hours 12 Mins 09 Secs","moonriseLocal":"10:39","moonsetLocal":"23:46","rahuKala":{"name":"Rāhu Kāla","start":"15:25","end":"16:45","startHours":15.408477799292786,"endHours":16.75816098650981,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:01","end":"11:22","startHours":10.009745050424687,"endHours":11.359428237641712,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:43","end":"14:04","startHours":12.709111424858737,"endHours":14.058794612075761,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:50","end":"10:11","startHours":9.829787292129083,"endHours":10.189702808720291,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:46","end":"08:03","startHours":7.760273071729646,"endHours":8.048205485002612,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:04","startHours":12.34919590826753,"endHours":13.069026941449943,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:35","startHours":5.870716609625811,"endHours":6.590547642808224,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:25","end":"07:19","startHours":6.410589884512621,"endHours":7.310378675990638,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:14","startHours":14.50868900781477,"endHours":15.228520040997182,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.907844173726836,"endHours":18.307844173726835,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:33","startHours":18.107844173726836,"endHours":18.557738569465844,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.857844173726836,"endHours":19.607844173726836,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:04","startHours":24.34919590826753,"endHours":25.069026941449945,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:19","end":"08:40","startHours":7.310378675990638,"endHours":8.660061863207662,"quality":"inauspicious"},{"name":"Udveg","start":"08:40","end":"10:01","startHours":8.660061863207662,"endHours":10.009745050424687,"quality":"inauspicious"},{"name":"Chala","start":"10:01","end":"11:22","startHours":10.009745050424687,"endHours":11.359428237641712,"quality":"neutral"},{"name":"Labha","start":"11:22","end":"12:43","startHours":11.359428237641712,"endHours":12.709111424858737,"quality":"auspicious"},{"name":"Amṛta","start":"12:43","end":"14:04","startHours":12.709111424858737,"endHours":14.058794612075761,"quality":"auspicious"},{"name":"Kāla","start":"14:04","end":"15:25","startHours":14.058794612075761,"endHours":15.408477799292786,"quality":"inauspicious"},{"name":"Śubha","start":"15:25","end":"16:45","startHours":15.408477799292786,"endHours":16.75816098650981,"quality":"auspicious"},{"name":"Roga","start":"16:45","end":"18:06","startHours":16.75816098650981,"endHours":18.107844173726836,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:06","end":"19:45","startHours":18.107844173726836,"endHours":19.75816098650981,"quality":"inauspicious"},{"name":"Śubha","start":"19:45","end":"21:25","startHours":19.75816098650981,"endHours":21.408477799292786,"quality":"auspicious"},{"name":"Roga","start":"21:25","end":"23:04","startHours":21.408477799292786,"endHours":23.05879461207576,"quality":"inauspicious"},{"name":"Udveg","start":"23:04","end":"00:43","startHours":23.05879461207576,"endHours":24.709111424858737,"quality":"inauspicious"},{"name":"Chala","start":"00:43","end":"02:22","startHours":24.709111424858737,"endHours":26.359428237641712,"quality":"neutral"},{"name":"Labha","start":"02:22","end":"04:01","startHours":26.359428237641712,"endHours":28.009745050424687,"quality":"auspicious"},{"name":"Amṛta","start":"04:01","end":"05:40","startHours":28.009745050424687,"endHours":29.660061863207662,"quality":"auspicious"},{"name":"Kāla","start":"05:40","end":"07:19","startHours":29.660061863207662,"endHours":31.310378675990638,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:19","end":"08:19","startHours":7.310378675990638,"endHours":8.310378675990638,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:19","end":"09:19","startHours":8.310378675990638,"endHours":9.310378675990638,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:19","end":"10:19","startHours":9.310378675990638,"endHours":10.310378675990638,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:19","end":"11:19","startHours":10.310378675990638,"endHours":11.310378675990638,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:19","end":"12:19","startHours":11.310378675990638,"endHours":12.310378675990638,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:19","end":"13:19","startHours":12.310378675990638,"endHours":13.310378675990638,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:19","end":"14:19","startHours":13.310378675990638,"endHours":14.310378675990638,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:19","end":"15:19","startHours":14.310378675990638,"endHours":15.310378675990638,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:19","end":"16:19","startHours":15.310378675990638,"endHours":16.310378675990638,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:19","end":"17:19","startHours":16.310378675990638,"endHours":17.310378675990638,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:19","end":"18:19","startHours":17.310378675990638,"endHours":18.310378675990638,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:19","end":"19:19","startHours":18.310378675990638,"endHours":19.310378675990638,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:19","end":"20:19","startHours":19.310378675990638,"endHours":20.310378675990638,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:19","end":"21:19","startHours":20.310378675990638,"endHours":21.310378675990638,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:19","end":"22:19","startHours":21.310378675990638,"endHours":22.310378675990638,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:19","end":"23:19","startHours":22.310378675990638,"endHours":23.310378675990638,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:19","end":"00:19","startHours":23.310378675990638,"endHours":24.310378675990638,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:19","end":"01:19","startHours":24.310378675990638,"endHours":25.310378675990638,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:19","end":"02:19","startHours":25.310378675990638,"endHours":26.310378675990638,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:19","end":"03:19","startHours":26.310378675990638,"endHours":27.310378675990638,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:19","end":"04:19","startHours":27.310378675990638,"endHours":28.310378675990638,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:19","end":"05:19","startHours":28.310378675990638,"endHours":29.310378675990638,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:19","end":"06:19","startHours":29.310378675990638,"endHours":30.310378675990638,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:19","end":"07:19","startHours":30.310378675990638,"endHours":31.310378675990638,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"North","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.424866562619428,"eotMinutes":-14.546685491524224,"ayanamsa":23.5891}},"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 Ṣaṣṭhī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"amarnath"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 10, 1981 CE · Amarnāth · Vidhyamitra","description":"February 10, 1981 CE for Amarnāth: Śukla Ṣaṣṭhī, sūryodaya 07:19, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/amarnath/1981-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/amarnath/1981-02-10","sa":"https://sa.vidhyamitra.com/city/amarnath/1981-02-10","hi":"https://hi.vidhyamitra.com/city/amarnath/1981-02-10","x-default":"https://vidhyamitra.com/city/amarnath/1981-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T03:10:01.629Z","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":"2026-06-03T03:10:01.629Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T03:10:01.629Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}