12-07-2020, 09:48 AM
(This post was last modified: 12-07-2020, 10:31 AM by DONJCH.
Edit Reason: Headings for lists
)
I have been pondering the list of 15 stars given by Diane in the You are not allowed to view links. Register or Login to view. thread. You are not allowed to view links. Register or Login to view.
They were from an astrolabe dated 1596.
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I took the trouble to translate these into more recognisable modern names, they were, in order:
NAVIGATION STARS
1 Sirius
2 Procyon
3 Alphard
4 Regulus
5 Denebola
6 Spica
7 Arcturus
8 Antares
9 Altair
10 Algenib
11 Baten Kaitos
12 Pleiades
13 Aldeberan
14 Rigel
15 Betelgeuse
If you check this site, the list is not unique, but only one of many:
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Although these are stars and not constellations, in reading around the subject there often seems (to me anyway) to have been some conflation.
But why should these appear in a roundel of 12? One possibility is the use of the stars in telling time!
In that same thread there was a post by Marco of the 15 Behenian Stars, each linked to a specific stone and herb:
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(New entries marked with *)
ASTROLOGICAL STARS
1 Aldeberan
2 Pleiades
3 Algol*
4 Capella*
5 Sirius
6 Pegasus
7 Regulus
8 Algorab*
9 Spica
10 Arcturus
11 Alkaid*
12 Alphecca*
13 Antares
14 Vega
15 Deneb Algedi*
I thought to write these lists out in full for easy comparison, as with all the historical names identification can be difficult.
I did check the declinations from the astrolabe against the modern ones quoted in Wikipedia, of course they are different today due to precession, but still within 1-2 degrees.
Hoping this exercise may be useful for somebody!
They were from an astrolabe dated 1596.
You are not allowed to view links. Register or Login to view.
I took the trouble to translate these into more recognisable modern names, they were, in order:
NAVIGATION STARS
1 Sirius
2 Procyon
3 Alphard
4 Regulus
5 Denebola
6 Spica
7 Arcturus
8 Antares
9 Altair
10 Algenib
11 Baten Kaitos
12 Pleiades
13 Aldeberan
14 Rigel
15 Betelgeuse
If you check this site, the list is not unique, but only one of many:
You are not allowed to view links. Register or Login to view.
Although these are stars and not constellations, in reading around the subject there often seems (to me anyway) to have been some conflation.
But why should these appear in a roundel of 12? One possibility is the use of the stars in telling time!
In that same thread there was a post by Marco of the 15 Behenian Stars, each linked to a specific stone and herb:
You are not allowed to view links. Register or Login to view.
(New entries marked with *)
ASTROLOGICAL STARS
1 Aldeberan
2 Pleiades
3 Algol*
4 Capella*
5 Sirius
6 Pegasus
7 Regulus
8 Algorab*
9 Spica
10 Arcturus
11 Alkaid*
12 Alphecca*
13 Antares
14 Vega
15 Deneb Algedi*
I thought to write these lists out in full for easy comparison, as with all the historical names identification can be difficult.
I did check the declinations from the astrolabe against the modern ones quoted in Wikipedia, of course they are different today due to precession, but still within 1-2 degrees.
Hoping this exercise may be useful for somebody!