{"id":"vidhyamitra:city-day:vrindavan:2170-09-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2170-09-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-09-27","date_display":"September 27, 2170 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":2170,"month":9,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513905.770833,"kali_year":5272,"ahargana":1925440.2708,"sun":{"sidereal_longitude":156.7103,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":359.2996,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":202.5893,"elapsed_within_tithi_degrees":10.5893},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":359.2996,"elapsed_within_degrees":12.6329},"yoga":{"number":12,"name":"Dhruva","sum_longitude":156.0099},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2170,"month":9,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513905.770833,"ahargana":1925440.2708,"kali_year":5272,"ayanamsa_lahiri":26.2381,"grahas":{"sun":{"sidereal_longitude":157.86667,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":357.84647,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":-2.9865},"mars":{"sidereal_longitude":206.27737000000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":168.90037000000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":151.92156999999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":133.16267,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":302.84117000000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":40.9086,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":220.9086,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":2170,"month":9,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513905.770833,"kali_year":5272,"ahargana":1925440.2708,"sun":{"sidereal_longitude":156.7103,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":359.2996,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":202.5893,"elapsed_within_tithi_degrees":10.5893},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":359.2996,"elapsed_within_degrees":12.6329},"yoga":{"number":12,"name":"Dhruva","sum_longitude":156.0099},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.986,"elongation":157.411},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.986,"opposition_distance":22.589}},"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":"06:09","sunsetLocal":"18:10","solarNoonLocal":"12:10","dayLengthHours":12.011755048726805,"dayLengthDisplay":"12 Hours 00 Mins 42 Secs","nightLengthDisplay":"11 Hours 59 Mins 18 Secs","moonriseLocal":"19:07","moonsetLocal":"07:52","rahuKala":{"name":"Rāhu Kāla","start":"13:40","end":"15:10","startHours":13.660169954512218,"endHours":15.16163933560307,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:09","end":"07:39","startHours":6.152823049057965,"endHours":7.654292430148816,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:09","end":"10:39","startHours":9.155761811239667,"endHours":10.657231192330517,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.955565893760888,"endHours":9.355957728718447,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.653312842754915,"endHours":6.973626310720963,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:34","startHours":11.758308738463807,"endHours":12.559092408378927,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:21","startHours":4.551255709227725,"endHours":5.352039379142845,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:09","startHours":5.151843461664065,"endHours":6.152823049057965,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:58","startHours":14.160659748209167,"endHours":14.961443418124286,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:58","end":"18:22","startHours":17.96457809778477,"endHours":18.36457809778477,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:10","end":"18:40","startHours":18.16457809778477,"endHours":18.66506789148172,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:55","end":"19:40","startHours":17.91457809778477,"endHours":19.66457809778477,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:34","startHours":23.758308738463807,"endHours":24.559092408378927,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:09","end":"07:39","startHours":6.152823049057965,"endHours":7.654292430148816,"quality":"auspicious"},{"name":"Roga","start":"07:39","end":"09:09","startHours":7.654292430148816,"endHours":9.155761811239667,"quality":"inauspicious"},{"name":"Udveg","start":"09:09","end":"10:39","startHours":9.155761811239667,"endHours":10.657231192330517,"quality":"inauspicious"},{"name":"Chala","start":"10:39","end":"12:10","startHours":10.657231192330517,"endHours":12.158700573421367,"quality":"neutral"},{"name":"Labha","start":"12:10","end":"13:40","startHours":12.158700573421367,"endHours":13.660169954512218,"quality":"auspicious"},{"name":"Amṛta","start":"13:40","end":"15:10","startHours":13.660169954512218,"endHours":15.16163933560307,"quality":"auspicious"},{"name":"Kāla","start":"15:10","end":"16:40","startHours":15.16163933560307,"endHours":16.66310871669392,"quality":"inauspicious"},{"name":"Śubha","start":"16:40","end":"18:10","startHours":16.66310871669392,"endHours":18.16457809778477,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:10","end":"19:40","startHours":18.16457809778477,"endHours":19.66310871669392,"quality":"auspicious"},{"name":"Kāla","start":"19:40","end":"21:10","startHours":19.66310871669392,"endHours":21.16163933560307,"quality":"inauspicious"},{"name":"Śubha","start":"21:10","end":"22:40","startHours":21.16163933560307,"endHours":22.660169954512217,"quality":"auspicious"},{"name":"Roga","start":"22:40","end":"00:10","startHours":22.660169954512217,"endHours":24.158700573421367,"quality":"inauspicious"},{"name":"Udveg","start":"00:10","end":"01:39","startHours":24.158700573421367,"endHours":25.657231192330517,"quality":"inauspicious"},{"name":"Chala","start":"01:39","end":"03:09","startHours":25.657231192330517,"endHours":27.155761811239664,"quality":"neutral"},{"name":"Labha","start":"03:09","end":"04:39","startHours":27.155761811239664,"endHours":28.654292430148814,"quality":"auspicious"},{"name":"Amṛta","start":"04:39","end":"06:09","startHours":28.654292430148814,"endHours":30.152823049057965,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.152823049057965,"endHours":7.152823049057965,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.152823049057965,"endHours":8.152823049057965,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.152823049057965,"endHours":9.152823049057965,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.152823049057965,"endHours":10.152823049057965,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.152823049057965,"endHours":11.152823049057965,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.152823049057965,"endHours":12.152823049057965,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.152823049057965,"endHours":13.152823049057965,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.152823049057965,"endHours":14.152823049057965,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.152823049057965,"endHours":15.152823049057965,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.152823049057965,"endHours":16.152823049057965,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.152823049057965,"endHours":17.152823049057965,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.152823049057965,"endHours":18.152823049057965,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.152823049057965,"endHours":19.152823049057965,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.152823049057965,"endHours":20.152823049057965,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.152823049057965,"endHours":21.152823049057965,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.152823049057965,"endHours":22.152823049057965,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.152823049057965,"endHours":23.152823049057965,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.152823049057965,"endHours":24.152823049057965,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.152823049057965,"endHours":25.152823049057965,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.152823049057965,"endHours":26.152823049057965,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.152823049057965,"endHours":27.152823049057965,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.152823049057965,"endHours":28.152823049057965,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.152823049057965,"endHours":29.152823049057965,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.152823049057965,"endHours":30.152823049057965,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-1.6314245066372333,"eotMinutes":9.840765594718077,"ayanamsa":26.2381}},"calendars":{"vikram_samvat":2227,"vikram_samvatsara":"Subhānu","saka_samvat":2092,"saka_samvatsara":"Pramoda","bengali_samvat":1577,"malayalam_era":1346,"nanakshahi_year":701,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvitīyā · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 September 27, 2170 CE · Vṛndāvana · Vidhyamitra","description":"September 27, 2170 CE for Vṛndāvana: Kṛṣṇa Dvitīyā, sūryodaya 06:09, sūryāsta 18:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2170-09-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2170-09-27","sa":"https://sa.vidhyamitra.com/city/vrindavan/2170-09-27","hi":"https://hi.vidhyamitra.com/city/vrindavan/2170-09-27","x-default":"https://vidhyamitra.com/city/vrindavan/2170-09-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:20:41.117Z","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":"2026-06-01T07:20:41.117Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:20:41.117Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}