{"id":"vidhyamitra:city-day:vrindavan:1987-01-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1987-01-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-01-30","date_display":"January 30, 1987 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":1987,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446825.770833,"kali_year":5088,"ahargana":1858360.2708,"sun":{"sidereal_longitude":285.9638,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":292.8128,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.849,"elapsed_within_tithi_degrees":6.849},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":292.8128,"elapsed_within_degrees":12.8128},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":218.7766},"karana":{"half_tithi_index":1,"name":"Bava"},"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":1987,"month":1,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446825.770833,"ahargana":1858360.2708,"kali_year":5088,"ayanamsa_lahiri":23.6725,"grahas":{"sun":{"sidereal_longitude":285.93152,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":292.36622,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false,"latitude":-3.984},"mars":{"sidereal_longitude":351.52222,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":298.00361999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":329.97132,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":239.75102000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":234.28452000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":355.1298,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":175.1298,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":1987,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446825.770833,"kali_year":5088,"ahargana":1858360.2708,"sun":{"sidereal_longitude":285.9638,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":292.8128,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.849,"elapsed_within_tithi_degrees":6.849},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":292.8128,"elapsed_within_degrees":12.8128},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":218.7766},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.984,"elongation":6.849},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.984,"opposition_distance":173.151}},"eclipse_window_40days":[]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"07:07","sunsetLocal":"17:58","solarNoonLocal":"12:33","dayLengthHours":10.843397248728557,"dayLengthDisplay":"10 Hours 50 Mins 36 Secs","nightLengthDisplay":"13 Hours 09 Mins 24 Secs","moonriseLocal":"07:30","moonsetLocal":"18:27","rahuKala":{"name":"Rāhu Kāla","start":"11:11","end":"12:33","startHours":11.18990777683834,"endHours":12.54533243292941,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:15","end":"16:37","startHours":15.25618174511155,"endHours":16.611606401202618,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:29","end":"09:50","startHours":8.479058464656202,"endHours":9.83448312074727,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:01","startHours":9.653759833268461,"endHours":10.01520640822608,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:52","startHours":7.575442027262154,"endHours":7.864599287228249,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:11","end":"12:54","startHours":12.183885857971791,"endHours":12.906779007887028,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:24","startHours":5.677847508734657,"endHours":6.4007406586498945,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:07","startHours":6.220017371171084,"endHours":7.123633808565131,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:05","startHours":14.352565307717501,"endHours":15.075458457632738,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.76703105729369,"endHours":18.167031057293688,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:25","startHours":17.96703105729369,"endHours":18.418839275990713,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.71703105729369,"endHours":19.46703105729369,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:11","end":"00:54","startHours":24.18388585797179,"endHours":24.906779007887028,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:07","end":"08:29","startHours":7.123633808565131,"endHours":8.479058464656202,"quality":"neutral"},{"name":"Labha","start":"08:29","end":"09:50","startHours":8.479058464656202,"endHours":9.83448312074727,"quality":"auspicious"},{"name":"Amṛta","start":"09:50","end":"11:11","startHours":9.83448312074727,"endHours":11.18990777683834,"quality":"auspicious"},{"name":"Kāla","start":"11:11","end":"12:33","startHours":11.18990777683834,"endHours":12.54533243292941,"quality":"inauspicious"},{"name":"Śubha","start":"12:33","end":"13:54","startHours":12.54533243292941,"endHours":13.90075708902048,"quality":"auspicious"},{"name":"Roga","start":"13:54","end":"15:15","startHours":13.90075708902048,"endHours":15.25618174511155,"quality":"inauspicious"},{"name":"Udveg","start":"15:15","end":"16:37","startHours":15.25618174511155,"endHours":16.611606401202618,"quality":"inauspicious"},{"name":"Chala","start":"16:37","end":"17:58","startHours":16.611606401202618,"endHours":17.96703105729369,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:58","end":"19:37","startHours":17.96703105729369,"endHours":19.611606401202618,"quality":"inauspicious"},{"name":"Udveg","start":"19:37","end":"21:15","startHours":19.611606401202618,"endHours":21.256181745111547,"quality":"inauspicious"},{"name":"Chala","start":"21:15","end":"22:54","startHours":21.256181745111547,"endHours":22.90075708902048,"quality":"neutral"},{"name":"Labha","start":"22:54","end":"00:33","startHours":22.90075708902048,"endHours":24.54533243292941,"quality":"auspicious"},{"name":"Amṛta","start":"00:33","end":"02:11","startHours":24.54533243292941,"endHours":26.18990777683834,"quality":"auspicious"},{"name":"Kāla","start":"02:11","end":"03:50","startHours":26.18990777683834,"endHours":27.834483120747272,"quality":"inauspicious"},{"name":"Śubha","start":"03:50","end":"05:29","startHours":27.834483120747272,"endHours":29.4790584646562,"quality":"auspicious"},{"name":"Roga","start":"05:29","end":"07:07","startHours":29.4790584646562,"endHours":31.12363380856513,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.123633808565131,"endHours":8.123633808565131,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.123633808565131,"endHours":9.123633808565131,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.123633808565131,"endHours":10.123633808565131,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.123633808565131,"endHours":11.123633808565131,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.123633808565131,"endHours":12.123633808565131,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.123633808565131,"endHours":13.123633808565131,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.123633808565131,"endHours":14.123633808565131,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.123633808565131,"endHours":15.123633808565131,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.123633808565131,"endHours":16.12363380856513,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.12363380856513,"endHours":17.12363380856513,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.12363380856513,"endHours":18.12363380856513,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.12363380856513,"endHours":19.12363380856513,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.12363380856513,"endHours":20.12363380856513,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.12363380856513,"endHours":21.12363380856513,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.12363380856513,"endHours":22.12363380856513,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.12363380856513,"endHours":23.12363380856513,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.12363380856513,"endHours":24.12363380856513,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.12363380856513,"endHours":25.12363380856513,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.12363380856513,"endHours":26.12363380856513,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.12363380856513,"endHours":27.12363380856513,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.12363380856513,"endHours":28.12363380856513,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.12363380856513,"endHours":29.12363380856513,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.12363380856513,"endHours":30.12363380856513,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.12363380856513,"endHours":31.12363380856513,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","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":-17.84483920120053,"eotMinutes":-13.357145975764517,"ayanamsa":23.6725}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"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 Pratipada · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[{"id":"magha-gupta-navratri-start","name":"Māgha Gupta Navrātri Start","name_sanskrit":"माघ गुप्त नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī (10 Mahāvidyās)","significance":"Hidden (gupta) Navrātri for advanced sādhanā of 10 Mahāvidyās.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":3}],"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":[]},"validity":{"eternal":false,"location_specific":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 30, 1987 CE · Vṛndāvana · Vidhyamitra","description":"January 30, 1987 CE for Vṛndāvana: Śukla Pratipada, sūryodaya 07:07, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1987-01-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1987-01-30","sa":"https://sa.vidhyamitra.com/city/vrindavan/1987-01-30","hi":"https://hi.vidhyamitra.com/city/vrindavan/1987-01-30","x-default":"https://vidhyamitra.com/city/vrindavan/1987-01-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:41:09.691Z","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":"2026-06-01T16:41:09.691Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:41:09.691Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}