Dhanusaragra: Difference between revisions
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Dhanusaragra
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{{DISPLAYTITLE:Dhanuśarāgra (धनुशराग्र)}} | |||
Authors: {{PAGEAUTHORS}} | Authors: {{PAGEAUTHORS}} | ||
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[[File:Dhanusaragra.jpg|thumb|Dhanusharagra is in the red circle envelopes both the stars. Image from Sidney Hall Urania, wikicommons<ref>https://upload.wikimedia.org/wikipedia/commons/7/7e/Sidney_Hall_-_Urania%27s_Mirror_-_Sagittarius_and_Corona_Australis%2C_Microscopium%2C_and_Telescopium.png</ref>]] | |||
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==Etymology and History== | == Etymology and History == | ||
'''Name Variants''' | '''Name Variants''' | ||
''Dhanuśarāgra'' | *''Dhanuśarāgra (धनुशराग्र)'' | ||
*Dhanusharagra | |||
===Origin of Constellation=== | |||
The term ''Dhanuśarāgra (धनुशराग्र)'' literally means tip of the arrow. ''Dhanu'' - bow, ''śara'' - arrow, ''agra'' - tip. This has been found in the catalogue of astrolabes translated from Persian. The names in these star lists of the dials have been coined based on their position. <ref>Sarma S R, 2023, A Descriptive Catalogue of Indian Astronomical Instruments, https://srsarma.in/catalogue.php </ref>The coordinates match with γ Sagittarii. The accuracy of the star dials cannot distiniguish between the two stars γ 1 and γ2. | |||
The two astrolabes which have this name engraved are C 006 (undated) and C(001, dated 1604CE) and identified as μ Sagittarii in the catalogue. In the latter, C001, the position actually corresponds to the supernova of 1604 CE. <ref>Shylaja B S, 2019, Records of Supernovae, Current Science, 116, 1430</ref> <ref>Shylaja B S, 2026, Astrolabes as records of previous eruptions of recurrent nova T CrB, 47, 39</ref> | |||
This star name thus can be for γ1 Sagittarii. | |||
== Transfer and Transformation == | |||
<gallery> | <gallery> | ||
</gallery> | </gallery> | ||
==Mythology== | ==Mythology== | ||
==Weblinks== | ==Weblinks== | ||
Latest revision as of 01:00, 17 July 2026
Authors: Shylaja, ASE Tech Team
...
Etymology and History
Name Variants
- Dhanuśarāgra (धनुशराग्र)
- Dhanusharagra
Origin of Constellation
The term Dhanuśarāgra (धनुशराग्र) literally means tip of the arrow. Dhanu - bow, śara - arrow, agra - tip. This has been found in the catalogue of astrolabes translated from Persian. The names in these star lists of the dials have been coined based on their position. [2]The coordinates match with γ Sagittarii. The accuracy of the star dials cannot distiniguish between the two stars γ 1 and γ2.
The two astrolabes which have this name engraved are C 006 (undated) and C(001, dated 1604CE) and identified as μ Sagittarii in the catalogue. In the latter, C001, the position actually corresponds to the supernova of 1604 CE. [3] [4]
This star name thus can be for γ1 Sagittarii.
Transfer and Transformation
Mythology
Weblinks
References
- ↑ https://upload.wikimedia.org/wikipedia/commons/7/7e/Sidney_Hall_-_Urania%27s_Mirror_-_Sagittarius_and_Corona_Australis%2C_Microscopium%2C_and_Telescopium.png
- ↑ Sarma S R, 2023, A Descriptive Catalogue of Indian Astronomical Instruments, https://srsarma.in/catalogue.php
- ↑ Shylaja B S, 2019, Records of Supernovae, Current Science, 116, 1430
- ↑ Shylaja B S, 2026, Astrolabes as records of previous eruptions of recurrent nova T CrB, 47, 39
