Astronomically accurate Moon, Sun and nakshatras for any place and any date.
A real geocentric sky you can turn with your hand — Earth, Sun and Moon among the twenty-seven nakshatras, for any moment you choose.
Constellations from real star positions. Scrub time and watch each tithi form.
Not tradition guessing at the sky — a single angle, measured.
Measure how far the Moon has pulled ahead of the Sun, seen from Earth. Every 12° of that gap is one tithi — thirty of them to a lunar month.
The same angle decides how much of the Moon you can see. That is why the tithi and the shape in the sky always agree — they are two readings of one number.
The nakshatra is not the phase. It is which of twenty-seven fixed star-segments the Moon is standing in — measured against the stars, not the Sun.
The Moon takes about 27.3 days to return to the same stars. Divide that path into twenty-seven equal parts and you have the nakshatras — the oldest layer of Indian sky-lore, and still the frame the calendar is built on.
The epic and the almanac describe one world in two registers — one narrated, one measured. These are the places where they touch.
The Vedāṅga Jyotiṣa records where the solstice stood. Run that description through the engine and it lands in the fifteenth century BCE — exactly where independent scholarship puts the text.
See the working →Twenty-four characters, the eighteen parvas and the whole of the Gītā — bilingual, offline-capable, and free of the advertising that buries most retellings.
Enter the epic →Yama, Vayu, Indra, Agni, the Ashvins — the deities who preside over nakshatras are the fathers of the epic’s protagonists. The two halves were never separate subjects.
Follow the thread →कर्मण्येवाधिकारस्ते मा फलेषु कदाचन।
Eighteen chapters, seven hundred verses, spoken between two armies — with a plain summary of what each chapter actually argues, in English and Kannada.
Bhagavad Gītā 2.47
No account, no tracking of what you look up, and it keeps working offline. Verified against DrikPanchang to within a minute.