Dhaniṣṭhā (श्रविष्ठा)

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Dhanishta


Authors: Susanne M Hoffmann, Shylaja, Youla Azkarrula


Dhanishta, the 23rd nakshatra, in Tirupperunthurai (Athmanathaswamy temple) near Aranthangi, India, 10th century CE. (SMH 2025).
श्रविष्ठा (Dhanishta)
Asterism Info
Native
श्रविष्ठा
RomanisationDhanishta
IPA/ʃɾə.ʋɪʂ.ʈʰaː/
Translation
Dhaniṣṭhā
Position (2000)
Right ascension308.3032203 to 311.6645826
Declination10.08619213 to 16.12429395
Area9.63 sq. deg.
Stars
Bright stars10
Bayer/Flamsteed
stars
9
Stars brighter than 3.00m0
Brightest starRotanev (3.63m)
Taxonomy
category
of asterism
constellation
IAU-
constellations
Del
The 22nd and 23rd nakshatra mapped to the star chart at Aquila and Delphinus. Dhanishta is the eastern (left) one.

Dhaniṣṭhā (धनिष्ठा ), "most famous", is an Indian name, used by the Indian Vedic tradition. Most of these names are roughly 3000 years old. They pre-date Hinduism but were taken over by it.

Etymology and History

Name Variants

  • Dhaniṣṭhā
  • Dhanishta
  • Vāsava,
  • Vasubha,
  • Śraviṣṭhā ("the swiftest")

Origin of Constellation

The term "Dhaniṣṭhā" is a group of stars. The coordinates match with Beta Delphini. However, it can be associated with Gamma Delphini within the errors in the coordinates provided in the catalogue[1]. The listed magnitude is 3. The word Dhaniṣṭhā literally means "most famous" which may refer to the recognizable shape of stars of Delphinus that are identified here. An alternative name Śraviṣṭhā (श्रविष्ठा), is specifically mentioned in the Yajurveda for winter solstice. Its position to the north of ecliptic rakes up the question as to how this was accommodated in to the ecliptic.

Its depiction in the temple engraving as a group of stars fitted in almost square enclosure contrasts with the a huge jar containing exactly 100 small stars depicted by Jones. For whatever reason (not specified) here are exactly 100 stars in the jar (neighboring the "100 physicians"-asterism Śatabhiṣa in the sky) and they are only inside the jar. The depiction of Revati (रेवती) also is a jar with fewer star among which two are outside of the jar.  There seems to be other variants too as in the Buddhist and Chinese depictions. Parāśara Tantra considered to be older by several centuries than 6th century recognises it as a bird's cage (Śakuni pañjara) with four stars.

The standard identification is the group of the brightest stars in Delphinus: α, β, γ, δ Delphini

Stars within the Constellation Area

id Label IAU design. description Vmag
1 Rotanev HIP 101769 Constellation lines (Vertex) 3.63
2 Sualocin HIP 101958 Constellation lines (Vertex) 3.8
3 Aldulfin HIP 101421 Constellation lines (Vertex) 4.03
4 γ 2 Delphini HIP 102532 Constellation lines (Vertex) 4.25
5 δ Delphini HIP 102281 Inside the hull 4.417
6 κ Delphini HIP 101916 Constellation lines (Vertex) 5.07
7 ι Delphini HIP 101800 Inside the hull 5.418
8 θ Delphini HIP 101882 Inside the hull 5.71
9 10 Del HIP 102080 Inside the hull 5.998
10 - HIP 101966 Inside the hull 6.385

Transfer and Transformation of the Constellation

Mythology

mnemonic tales and cultural significance

References

  1. Venketeswara R Pai and Shylaja B S, J. Astrophys. Astr. (2021) 42:113, https://doi.org/10.1007/s12036-021-09736-0Sadhan(a 0123458697().,-volV)FT3](0123456789().,-volV)