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01 · SIDEREAL ECLIPTIC DIVISION (RASHI 04 OF 12)

♋︎ 04. Karka (Sidereal Cancer) — 090° 00' to 120° 00'

Karka (Karkaṭa (Kulīra), Sidereal Cancer) spans the sidereal ecliptic arc from 090° 00' to 120° 00'. The ecliptic longitude of Karka is measured from the fixed origin of Ashwini opposite the star Chitra (Spica). Within jyotish_corpus_core_v3, Karka appears in 1,283 verified passages and 618 numbered shlokas.

Canonical Definition · Karka (Sidereal Cancer)

Karka is the 4-numbered sidereal Rashi (090° 00' to 120° 00'), ruled by Chandra (Moon). It carries a chara (movable) modality and jala (water) elemental nature. Within Karka, planetary exaltation falls at Guru at 05°00' Karka and debilitation falls at Mangala at 28°00' Karka.

30-DEGREE SIDEREAL ARC & 9-NAVAMSA PARTITION Rashi 04 (Karka)
SIDEREAL LONGITUDE ARC: 090° 00' to 120° 00' | RULER: CHANDRA (MOON) 07 Punarvasu (Pada 4) 0°00' to 3°20' (Guru (16y)) 08 Pushya (Padas 1 to 4) 3°20' to 16°40' (Shani (19y)) 09 Ashlesha (Padas 1 to 4) 16°40' to 30°00' (Budha (17y)) 9 EQUAL NAVAMSA PADAS (3° 20' EACH = 200 ARC-MINUTES) P1 3°20' P2 6°40' P3 10°00' P4 13°20' P5 16°40' P6 20°00' P7 23°20' P8 26°40' P9 30°00' Vargottama Segment: Pada 4 of Punarvasu (0°00' to 3°20' Karka) | Element: Jala (Water)
02 · TROPICAL SHIFT & 9-PADA NAKSHATRA SUBDIVISION

Precession Differential & Nine Navamsa Padas of Karka

Under the Chitrapaksha Lahiri Ayanamsha (24° 13' 18" in October 2026), solar ingress into sidereal Karka occurs during July 16 to August 16. By contrast, the Western Tropical window for Karka spans June 21 to July 22. Roughly eighty percent of placements assigned to tropical Cancer shift backward out of sidereal Karka under DE441 subtraction.

The 30° 00' arc of Karka divides into nine 3° 20' (200 arc-minute) Nakshatra Padas that map into the ninth harmonic Navamsa (D9) chart. In Karka, the Vargottama segment where D1 and D9 share the same sign falls at Pada 4 of Punarvasu (0°00' to 3°20' Karka).

Degree Span Nakshatra Dasha Lord Navamsa Mapping
0°00' to 3°20' 07 Punarvasu (Pada 4) Guru (16y) In sidereal Karka, 07 Punarvasu (Pada 4) projects into Karka Navamsa matches Pada 4 of Punarvasu as a Vargottama degree in Karka. inside the ninth harmonic Navamsa chart.
3°20' to 16°40' 08 Pushya (Padas 1 to 4) Shani (19y) In sidereal Karka, 08 Pushya (Padas 1 to 4) projects into Simha, Kanya, Tula, and Vrishchika Navamsas match Padas 1 to 4 of Pushya. inside the ninth harmonic Navamsa chart.
16°40' to 30°00' 09 Ashlesha (Padas 1 to 4) Budha (17y) In sidereal Karka, 09 Ashlesha (Padas 1 to 4) projects into Dhanu, Makara, Kumbha, and Meena Navamsas match Padas 1 to 4 of Ashlesha. inside the ninth harmonic Navamsa chart.
03 · MULTI-TREATISE SHASTRA CONCORDANCE

Classical Citations for Karka Across 18 Sanskrit Shastras

In Brihat Parashara Hora Shastra Chapter 4 Verses 11 to 12 and Brihat Jataka Chapter 1 Verses 7 to 14, Karka corresponds to Hridaya (Heart and chest) on the cosmic body of Kalapurusha. Under the sign-aspect rules (Rashi Drishti) of Maharishi Jaimini, Karka aspects vrishchika (scorpio), kumbha (aquarius), and vrishabha (taurus). This aspect transmits permanent sign-to-sign influence from Karka to every planet or Arudha Pada in those sectors.

Sanskrit Treatise Verified Passages Chapter Coverage Analytical Scope
Brihat Jataka 231 passages 23 ch / 147 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 23 chapters.
Saravali 201 passages 31 ch / 119 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 31 chapters.
Hora Ratnam 158 passages 5 ch / 93 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 5 chapters.
Sarvartha Chintamani 122 passages 12 ch / 21 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 12 chapters.
Kalaprakashika 99 passages 25 ch / 4 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 25 chapters.
Prashna Marga 71 passages 12 ch / 45 v Details sidereal sign attributes, planetary placements, and aspect rules for Karka (Sidereal Cancer) across 12 chapters.
04 · VERBATIM CORPUS FOLIO & VARGA GEOMETRY

Archival Public-Domain Folio Excerpt for Karka

This archival passage for Karka comes from the public-domain edition of Brihat Parashara Hora Shastra (Chapter 17, Verse 6) in jyotish_corpus_core_v3. When evaluating any planet in Karka, classical commentators weigh its parity (even (yugma) and feminine) alongside the strength of its ruler Chandra (Moon).

CORPUS PROVENANCE: Brihat Parashara Hora Shastra | Source ID: archive_brihat-parashara-hora-sastra | Chapter 17, Verse 6
"6 Facial Diseases Should Lagn s Lord be in a R i of Mangal, or of Budh and has a Drishti on Budh, there will be diseases of the face 7-8 Leprosy Mangal, or Budh, having ownership of the ascending R i and joining Candr, Rahu and ani, will cause leprosy If Candr is"

In the North Indian diamond chart, Karka is marked by the integer 4 rotating through the twelve fixed Bhava polygons. In the South Indian Rashi grid, Karka holds a fixed perimeter cell for inspecting Rashi Drishti and Argala interventions.

✦︎ SUTRA BLACK LABEL · INDIVIDUAL EPHEMERIS SYNTHESIS

Verify Sidereal Karka Placements & Navamsa Padas at Birth-Second Precision

This encyclopedia article documents the astronomical and shastric parameters of Karka (Sidereal Cancer). To verify whether a tropical placement shifts into sidereal Karka under DE441 Lahiri precession and to inspect all 16 Shodashavarga charts, visit jyotish.vip.

  • Karka Pada & D9 Map
  • DE441 Ephemeris (0.001°)
  • Karka Ashtakavarga Bindus
  • Verbatim Shloka Citations
SUTRA Assay Hallmark 0.001 degrees Enter jyotish.vip Observatory
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